CA2312632A1 - Surface finish for a press-fit part - Google Patents
Surface finish for a press-fit part Download PDFInfo
- Publication number
- CA2312632A1 CA2312632A1 CA 2312632 CA2312632A CA2312632A1 CA 2312632 A1 CA2312632 A1 CA 2312632A1 CA 2312632 CA2312632 CA 2312632 CA 2312632 A CA2312632 A CA 2312632A CA 2312632 A1 CA2312632 A1 CA 2312632A1
- Authority
- CA
- Canada
- Prior art keywords
- port
- fluid
- pipe
- press
- distal end
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L13/00—Non-disconnectible pipe-joints, e.g. soldered, adhesive or caulked joints
- F16L13/14—Non-disconnectible pipe-joints, e.g. soldered, adhesive or caulked joints made by plastically deforming the material of the pipe, e.g. by flanging, rolling
- F16L13/146—Non-disconnectible pipe-joints, e.g. soldered, adhesive or caulked joints made by plastically deforming the material of the pipe, e.g. by flanging, rolling by an axially moveable sleeve
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P11/00—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Branch Pipes, Bends, And The Like (AREA)
Abstract
The subject invention relates to a press-fit connection for sealing a fluid pipe to a manifold assembly. The manifold includes a manifold body for transferring fluid and at least one generally cylindrical port having a proximal end in fluid communication with the manifold body and a distal end defined by a peripheral rim forming an opening therein.
The fluid pipe includes an elongated tubular body having a first end dimensioned to be received within the opening of the port and a longitudinally opposing second end. The port further includes an inner cylindrical surface defined by a plurality of parallel raised ribs spaced apart by a plurality of recessed grooves extending between the proximal end and the distal end of the port. The press-fit connection includes the raised ribs deformed against the fluid pipe in response to the first end of the fluid pipe being received in the opening of the port and forced from the distal end toward the proximal end to create a fluid tight press-fit connection between the fluid pipe and the port.
The fluid pipe includes an elongated tubular body having a first end dimensioned to be received within the opening of the port and a longitudinally opposing second end. The port further includes an inner cylindrical surface defined by a plurality of parallel raised ribs spaced apart by a plurality of recessed grooves extending between the proximal end and the distal end of the port. The press-fit connection includes the raised ribs deformed against the fluid pipe in response to the first end of the fluid pipe being received in the opening of the port and forced from the distal end toward the proximal end to create a fluid tight press-fit connection between the fluid pipe and the port.
Description
SURFACE FINISH FOR A PRESS-FIT PART
BACKGROUND OF THE INVENTION
1. Field of Invention The subject invention relates to a press-fit connection for sealing a fluid pipe to a manifold assembly and to a method of forming the same.
BACKGROUND OF THE INVENTION
1. Field of Invention The subject invention relates to a press-fit connection for sealing a fluid pipe to a manifold assembly and to a method of forming the same.
2. Background of Invention Manifolds for transfernng fluid between an inlet and outlet are commonly known in the art. These manifolds typically include a fluid body having an inlet port and an outlet port in fluid communication therewith. A tubular fluid pipe is generally connected to each of the inlet port and outlet port. The fluid pipe is commonly soldered, welded, glued, threaded or frictionally press fit into the ports. It is desirable to provide a fluid tight connection between the pipe and the ports. The surfaces of the pipe and port are commonly scored or scuffed during the connection therebetween which may allow for fluid leaks between the pipe and port. Additionally, it is common for these prior art connections to fail over prolonged periods of use resulting in further fluid leaks between the pipe and port.
Therefore, it is desirable to provide a mechanical press-fit connection for sealing a fluid pipe to a fluid port of the manifold assembly and overcome the problems in the prior art connections.
SUMMARY OF THE INVENTION
The present invention includes a press-fit connection for sealing a fluid pipe to a manifold assembly. The manifold assembly includes a manifold body for transfernng fluid and a generally cylindrical port having a proximal end in fluid communication with the manifold body and a distal end defined by a peripheral rim forming an opening.
The fluid pipe includes an elongated tubular body having a first end dimensioned to be received within the opening of the port and a longitudinally opposing second end. The port further includes an inner cylindrical surface defined by a plurality of parallel raised ribs spaced apart by a plurality of recessed grooves at least partially between the proximal end and the distal end. The press-fit connection includes the raised ribs deformed against the fluid pipe in response to the first end of the fluid pipe being received in the opening of the port and forced from the distal end toward the proximal end to create a fluid tight press-fit connection between the fluid pipe and the port.
The present invention also includes a method of connecting a pipe to a port of a manifold. The manifold includes a manifold body for transferring fluid and the port has an inner cylindrical surface extending between a proximal end in fluid communication with the manifold body and a distal end defined by a peripheral rim forming an opening.
The method includes the step of forming a plurality of parallel raised ribs spaced apart by a plurality of recessed grooves along the inner cylindrical surface at least partially between the proximal end and the distal end. The method further includes the step of forcing the pipe into the port and deforming the raised ribs against the pipe between the proximal end and the distal end thereby creating a fluid tight press-fit connection between the fluid pipe and the port.
BRIEF DESCRIPTION OF THE DRAWINGS
Other advantages of the present invention will be readily appreciated as the same becomes better understood by reference to the following detailed description when considered in connection with the accompanying drawings wherein:
Figure 1 is a perspective view of a manifold incorporating the subject invention;
Figure 2 is an enlarged view of a side port having a roughened internal surface;
Figure 3 is a partially cross-sectional side view of the side port and a pipe in a non-engaged position; and Figure 4 is a partially cross-sectional side view of the side port with the pipe press-fit into the port.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
Refernng to the Figures, wherein like numerals indicate like or corresponding parts throughout the several views, a manifold assembly is generally shown at 10 in Figure 1.
The manifold 10 includes an inlet 12 and outlet 14. The manifold 10 is of any particular design or configuration and is preferably made of die-cast aluminum. Even more preferably, the manifold 10 is a liquid manifold 10 for transferring fluid such as is used in a water management system. The manifold assembly 10 includes a generally cylindrical tubular body 16. A plurality of generally cylindrical female side ports 18, 20, and 22 are disposed along the manifold 10. Each of the ports 18, 20 and 22 include a proximal end 24 S in fluid communication with said manifold body 16 and an opposite distal end 26 defined by a peripheral rim 28 forming an opening 30 for allowing one of a variety of parts to be mounted to the manifold 10. Preferably, at least one of the parts is an elongated and tubular male pipe 32 mounted to at least one of the female ports 18. The pipe 32 includes an elongate, hollow, tubular body 33 defining an outer diameter and extending longitudinally between a first end 35 and a second end 37. The pipe 32 is typically a plated steel pipe used as a fluid feed to or from the manifold body 16. More preferably, the manifold assembly 10 includes two similar pipes mounting to two of the ports, such as ports 18 and 20, respectively, wherein one of the pipes is used as a heater in-feed for the fluid and the other pipe is used as a fluid return feed to the manifold body 16.
Referring to Figures l and 2, each of the ports 18, 20, 22 include an inner cylindrical surface 34 which may have a variety of different surface finishes.
The surface finish may include a machine threading, as shown within port 22, for receiving a threaded male part or pipe. The surface finish may also have a fine or smooth finish such that the part or pipe is frictionally press-fit into the port. Both the machine threading and smooth finishing on the inner surfaces of these ports is well known in the machining art. However, one deficiency associated with press fitting pipes into a smooth finished surface is that the inner surface may become scored or scuffed. This scoring or scuffing creates a potential channel for axial fluid leakage between the port and the pipe.
The subject invention incorporates a unique surface finish for the inner surface 34 of at least one of the ports 18, 20, 22. In the preferred embodiment, the ports 18, 20 are substantially identical such that only port 20 need be discussed further.
Referring to Figure 3, the inner surface 34 of the port 20 is defined by including a plurality of essentially parallel raised ribs 36 spaced apart by a plurality of recessed grooves 38.
The ribs 36 and grooves 38 are formed by finely etching the inner surface 34 of the port 20.
It should be appreciated that the finely etched ribs 36 and grooves 38 may be manufactured onto any suitable type of part made of any suitable type of material. In other words, the subject invention is in no way limited to fluid manifolds having side ports.
The ribs 36 and grooves 38 are preferably milled by a milling machine at a specific feed rate and cutting rate. The ribs 36 and grooves 38 are milled in a relatively fine configuration in relation to the size of the port 20 and pipe 32.
Specifically, in the preferred embodiment, the ribs 36 can be characterized as creating a defined rough surface on the inner surface 34 of the port 20 with an arithmetic average of 45 (Ra45). In other words, the inner surface 34 of the port 20 is intentionally roughened or etched. As illustrated in Figures 3 and 4, the ribs 36 are shown greatly exaggerated and it should be appreciated that the ribs 36 preferably have a much smaller configuration relative to the diameter of the pipe 32.
The raised ribs 36 and recessed grooves 38 are arranged in essentially parallel cylindrical rows generally parallel with the peripheral rim 28 of the port 18.
The ribs 36 and grooves 38 may extend along a portion or along the entire inner surface 34 between the proximal end 24 and distal end 26 of the port 18. Additionally, the raised ribs 36 define an inner diameter of the port 18. The inner surface 34 may alternatively be defined by having a plurality of peaks 36 spaced apart by a plurality of valleys 38.
The distal end 26 of the port 20 further includes an inwardly tapered portion extending from peripheral rim 28 to the inner cylindrical surface 34 for aligning the fluid pipe 32 with the opening 30.
Referring to Figure 4, a press-fit connection is formed between the port 20 and the pipe 32. The press-fit connection includes the raised ribs 36 deformed against the fluid pipe in response to the first end 35 of the fluid pipe 32 be received in the opening 30 of the port 20 and forced from the distal end 26 toward the proximal end 28 to create a fluid tight frictional press-fit connection between the fluid pipe 32 and the port 20. The ends of the ribs 36 are deflected or otherwise deform as the pipe 32 is inserted into the port 20. This creates the necessary friction to form the press-fit connection or engagement between the pipe 32 and the port 20 and to securely hold the pipe 32 within the port 20.
The recessed grooves 38 form a gap 42 between the inner surface 34 of the port 20 and the tubular body 33 of the pipe 32 when the fluid pipe 32 is forced into the port 20 and press-fit against the deformed raised ribs 36.
Alternatively, material pieces or chips 44 from the ends of the ribs 36 may break off during the forming of the press-fit connection. These pieces or chips 34, however, are pushed into the next adjacent recessed groove 38 and are trapped within that groove 38.
Therefore, a scar or scratch is not formed within the inner surface 34 of the port 20. This, therefore, still ensures a substantially fluid tight and leak proof connection between the port 20 and the pipe 32. For illustrative purposes, a plurality of chips 44 from the ends of the ribs 36 are shown within some of the grooves 38. As appreciated, there may not be any chips 44, which is preferable, or there may be only a minimal amount of chips 44.
Referring to Figures 3 and 4, the subject invention also includes a method of connecting the pipe 32 to the port 20 of the manifold 10. The method includes the step of forming the plurality of essentially parallel raised ribs 36 spaced apart by the plurality of recessed grooves 38 along the inner cylindrical surface 34 at least partially between the proximal end 24 and the distal end 26 of the port 20 as previously described.
The raised ribs 36 and recessed grooves 38 are formed along the inner surface 34 of the port 20 in essentially parallel cylindrical rows generally parallel with the peripheral rim 28 of the port 20. The method further includes the step of forcing the pipe 32 into the port 20 and deforming the raised ribs 36 against the pipe 32 between the proximal end 24 and the distal end 26 thereby creating a fluid tight press-fit connection between the fluid pipe 32 and the port 20. The method further includes the step of aligning the fluid pipe 32 with the tapered portion 40 and opening 30 of the port 20. The method further includes forming the raised ribs 36 and recessed grooves 38 prior to forcing the pipe 32 into the port 20.
The invention has been described in an illustrative manner, and it is to be understood that the terminology, which has been used, is intended to be in the nature of words of description rather than of limitation.
Many modifications and variations of the present invention are possible in light of the above teachings. It is, therefore, to be understood that within the scope of the appended claims, the invention may be practised other than as specifically described.
Therefore, it is desirable to provide a mechanical press-fit connection for sealing a fluid pipe to a fluid port of the manifold assembly and overcome the problems in the prior art connections.
SUMMARY OF THE INVENTION
The present invention includes a press-fit connection for sealing a fluid pipe to a manifold assembly. The manifold assembly includes a manifold body for transfernng fluid and a generally cylindrical port having a proximal end in fluid communication with the manifold body and a distal end defined by a peripheral rim forming an opening.
The fluid pipe includes an elongated tubular body having a first end dimensioned to be received within the opening of the port and a longitudinally opposing second end. The port further includes an inner cylindrical surface defined by a plurality of parallel raised ribs spaced apart by a plurality of recessed grooves at least partially between the proximal end and the distal end. The press-fit connection includes the raised ribs deformed against the fluid pipe in response to the first end of the fluid pipe being received in the opening of the port and forced from the distal end toward the proximal end to create a fluid tight press-fit connection between the fluid pipe and the port.
The present invention also includes a method of connecting a pipe to a port of a manifold. The manifold includes a manifold body for transferring fluid and the port has an inner cylindrical surface extending between a proximal end in fluid communication with the manifold body and a distal end defined by a peripheral rim forming an opening.
The method includes the step of forming a plurality of parallel raised ribs spaced apart by a plurality of recessed grooves along the inner cylindrical surface at least partially between the proximal end and the distal end. The method further includes the step of forcing the pipe into the port and deforming the raised ribs against the pipe between the proximal end and the distal end thereby creating a fluid tight press-fit connection between the fluid pipe and the port.
BRIEF DESCRIPTION OF THE DRAWINGS
Other advantages of the present invention will be readily appreciated as the same becomes better understood by reference to the following detailed description when considered in connection with the accompanying drawings wherein:
Figure 1 is a perspective view of a manifold incorporating the subject invention;
Figure 2 is an enlarged view of a side port having a roughened internal surface;
Figure 3 is a partially cross-sectional side view of the side port and a pipe in a non-engaged position; and Figure 4 is a partially cross-sectional side view of the side port with the pipe press-fit into the port.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
Refernng to the Figures, wherein like numerals indicate like or corresponding parts throughout the several views, a manifold assembly is generally shown at 10 in Figure 1.
The manifold 10 includes an inlet 12 and outlet 14. The manifold 10 is of any particular design or configuration and is preferably made of die-cast aluminum. Even more preferably, the manifold 10 is a liquid manifold 10 for transferring fluid such as is used in a water management system. The manifold assembly 10 includes a generally cylindrical tubular body 16. A plurality of generally cylindrical female side ports 18, 20, and 22 are disposed along the manifold 10. Each of the ports 18, 20 and 22 include a proximal end 24 S in fluid communication with said manifold body 16 and an opposite distal end 26 defined by a peripheral rim 28 forming an opening 30 for allowing one of a variety of parts to be mounted to the manifold 10. Preferably, at least one of the parts is an elongated and tubular male pipe 32 mounted to at least one of the female ports 18. The pipe 32 includes an elongate, hollow, tubular body 33 defining an outer diameter and extending longitudinally between a first end 35 and a second end 37. The pipe 32 is typically a plated steel pipe used as a fluid feed to or from the manifold body 16. More preferably, the manifold assembly 10 includes two similar pipes mounting to two of the ports, such as ports 18 and 20, respectively, wherein one of the pipes is used as a heater in-feed for the fluid and the other pipe is used as a fluid return feed to the manifold body 16.
Referring to Figures l and 2, each of the ports 18, 20, 22 include an inner cylindrical surface 34 which may have a variety of different surface finishes.
The surface finish may include a machine threading, as shown within port 22, for receiving a threaded male part or pipe. The surface finish may also have a fine or smooth finish such that the part or pipe is frictionally press-fit into the port. Both the machine threading and smooth finishing on the inner surfaces of these ports is well known in the machining art. However, one deficiency associated with press fitting pipes into a smooth finished surface is that the inner surface may become scored or scuffed. This scoring or scuffing creates a potential channel for axial fluid leakage between the port and the pipe.
The subject invention incorporates a unique surface finish for the inner surface 34 of at least one of the ports 18, 20, 22. In the preferred embodiment, the ports 18, 20 are substantially identical such that only port 20 need be discussed further.
Referring to Figure 3, the inner surface 34 of the port 20 is defined by including a plurality of essentially parallel raised ribs 36 spaced apart by a plurality of recessed grooves 38.
The ribs 36 and grooves 38 are formed by finely etching the inner surface 34 of the port 20.
It should be appreciated that the finely etched ribs 36 and grooves 38 may be manufactured onto any suitable type of part made of any suitable type of material. In other words, the subject invention is in no way limited to fluid manifolds having side ports.
The ribs 36 and grooves 38 are preferably milled by a milling machine at a specific feed rate and cutting rate. The ribs 36 and grooves 38 are milled in a relatively fine configuration in relation to the size of the port 20 and pipe 32.
Specifically, in the preferred embodiment, the ribs 36 can be characterized as creating a defined rough surface on the inner surface 34 of the port 20 with an arithmetic average of 45 (Ra45). In other words, the inner surface 34 of the port 20 is intentionally roughened or etched. As illustrated in Figures 3 and 4, the ribs 36 are shown greatly exaggerated and it should be appreciated that the ribs 36 preferably have a much smaller configuration relative to the diameter of the pipe 32.
The raised ribs 36 and recessed grooves 38 are arranged in essentially parallel cylindrical rows generally parallel with the peripheral rim 28 of the port 18.
The ribs 36 and grooves 38 may extend along a portion or along the entire inner surface 34 between the proximal end 24 and distal end 26 of the port 18. Additionally, the raised ribs 36 define an inner diameter of the port 18. The inner surface 34 may alternatively be defined by having a plurality of peaks 36 spaced apart by a plurality of valleys 38.
The distal end 26 of the port 20 further includes an inwardly tapered portion extending from peripheral rim 28 to the inner cylindrical surface 34 for aligning the fluid pipe 32 with the opening 30.
Referring to Figure 4, a press-fit connection is formed between the port 20 and the pipe 32. The press-fit connection includes the raised ribs 36 deformed against the fluid pipe in response to the first end 35 of the fluid pipe 32 be received in the opening 30 of the port 20 and forced from the distal end 26 toward the proximal end 28 to create a fluid tight frictional press-fit connection between the fluid pipe 32 and the port 20. The ends of the ribs 36 are deflected or otherwise deform as the pipe 32 is inserted into the port 20. This creates the necessary friction to form the press-fit connection or engagement between the pipe 32 and the port 20 and to securely hold the pipe 32 within the port 20.
The recessed grooves 38 form a gap 42 between the inner surface 34 of the port 20 and the tubular body 33 of the pipe 32 when the fluid pipe 32 is forced into the port 20 and press-fit against the deformed raised ribs 36.
Alternatively, material pieces or chips 44 from the ends of the ribs 36 may break off during the forming of the press-fit connection. These pieces or chips 34, however, are pushed into the next adjacent recessed groove 38 and are trapped within that groove 38.
Therefore, a scar or scratch is not formed within the inner surface 34 of the port 20. This, therefore, still ensures a substantially fluid tight and leak proof connection between the port 20 and the pipe 32. For illustrative purposes, a plurality of chips 44 from the ends of the ribs 36 are shown within some of the grooves 38. As appreciated, there may not be any chips 44, which is preferable, or there may be only a minimal amount of chips 44.
Referring to Figures 3 and 4, the subject invention also includes a method of connecting the pipe 32 to the port 20 of the manifold 10. The method includes the step of forming the plurality of essentially parallel raised ribs 36 spaced apart by the plurality of recessed grooves 38 along the inner cylindrical surface 34 at least partially between the proximal end 24 and the distal end 26 of the port 20 as previously described.
The raised ribs 36 and recessed grooves 38 are formed along the inner surface 34 of the port 20 in essentially parallel cylindrical rows generally parallel with the peripheral rim 28 of the port 20. The method further includes the step of forcing the pipe 32 into the port 20 and deforming the raised ribs 36 against the pipe 32 between the proximal end 24 and the distal end 26 thereby creating a fluid tight press-fit connection between the fluid pipe 32 and the port 20. The method further includes the step of aligning the fluid pipe 32 with the tapered portion 40 and opening 30 of the port 20. The method further includes forming the raised ribs 36 and recessed grooves 38 prior to forcing the pipe 32 into the port 20.
The invention has been described in an illustrative manner, and it is to be understood that the terminology, which has been used, is intended to be in the nature of words of description rather than of limitation.
Many modifications and variations of the present invention are possible in light of the above teachings. It is, therefore, to be understood that within the scope of the appended claims, the invention may be practised other than as specifically described.
Claims (9)
1. A press-fit connection for sealing a fluid pipe to a manifold assembly:
said manifold assembly including a manifold body for transferring fluid and a generally cylindrical port having a proximal end in fluid communication with said manifold body and a distal end defined by a peripheral rim forming an opening;
said fluid pipe including an elongated tubular body having a first end dimensioned to be received within said opening of said port and a longitudinally opposing second end;
said port further including an inner cylindrical surface defined by a plurality of parallel raised ribs spaced apart by a plurality of recessed grooves at least partially between said proximal end and said distal end;
said press-fit connection including said raised ribs deformed against said fluid pipe in response to said first end of said fluid pipe being received in said opening of said port and forced from said distal end toward said proximal end to create a fluid tight press-fit connection between said fluid pipe and said port.
said manifold assembly including a manifold body for transferring fluid and a generally cylindrical port having a proximal end in fluid communication with said manifold body and a distal end defined by a peripheral rim forming an opening;
said fluid pipe including an elongated tubular body having a first end dimensioned to be received within said opening of said port and a longitudinally opposing second end;
said port further including an inner cylindrical surface defined by a plurality of parallel raised ribs spaced apart by a plurality of recessed grooves at least partially between said proximal end and said distal end;
said press-fit connection including said raised ribs deformed against said fluid pipe in response to said first end of said fluid pipe being received in said opening of said port and forced from said distal end toward said proximal end to create a fluid tight press-fit connection between said fluid pipe and said port.
2. A press-fit connection as set forth in claim 1 wherein said raised ribs and said recessed grooves are arranged in parallel cylindrical rows generally parallel with said peripheral rim of said port.
3. A press-fit connection as set forth in claim 2 wherein said distal end of said port further includes an inwardly tapered portion extending from said peripheral rim to said inner cylindrical surface for aligning said fluid pipe with said opening.
4. A press-fit connection as set forth in claim 3 wherein said raised ribs define an inner diameter of said port and said tubular body defines an outer diameter of said fluid pipe, said inner diameter of said port being greater than said outer diameter of said pipe.
5. A press-fit connection as set forth in claim 4 wherein said recessed grooves form a gap between said inner surface of said port and said tubular body when said fluid pipe is forced into said port and press-fit against said deformed raised ribs.
6. A method of connecting a pipe to a port of a manifold, the manifold including a manifold body for transferring fluid and the port having an inner cylindrical surface extending between a proximal end in fluid communication with the manifold body and a distal end defined by a peripheral rim forming an opening, said method including the steps of:
forming a plurality of parallel raised ribs spaced apart by a plurality of recessed grooves along the inner cylindrical surface at least partially between the proximal end and the distal end;
forcing the pipe into the port and deforming the raised ribs against the pipe between the proximal end and the distal end thereby creating a fluid tight press-fit connection between the fluid pipe and the port.
forming a plurality of parallel raised ribs spaced apart by a plurality of recessed grooves along the inner cylindrical surface at least partially between the proximal end and the distal end;
forcing the pipe into the port and deforming the raised ribs against the pipe between the proximal end and the distal end thereby creating a fluid tight press-fit connection between the fluid pipe and the port.
7. A method as set forth in claim 6 wherein the distal end of the port further includes an inwardly tapered portion extending from the peripheral rim to the inner cylindrical surface and said method further includes the step of aligning the fluid pipe with the tapered portion and opening.
8. A method as set forth in claim 7 further including forming the raised ribs and recessed grooves along the inner surface of the port in parallel cylindrical rows generally parallel with the peripheral rim of the port.
9. A method as set forth in claim 8 further including forming the raised ribs and recessed grooves prior to forcing the pipe into the port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2312632 CA2312632A1 (en) | 2000-06-28 | 2000-06-28 | Surface finish for a press-fit part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2312632 CA2312632A1 (en) | 2000-06-28 | 2000-06-28 | Surface finish for a press-fit part |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2312632A1 true CA2312632A1 (en) | 2001-12-28 |
Family
ID=4166597
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2312632 Abandoned CA2312632A1 (en) | 2000-06-28 | 2000-06-28 | Surface finish for a press-fit part |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2312632A1 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017139103A1 (en) * | 2016-02-09 | 2017-08-17 | Acist Medical Systems, Inc. | Manifold connection assembly having a surface finish |
| US10322277B2 (en) | 2010-11-24 | 2019-06-18 | Acist Medical Systems, Inc. | Contrast media injector syringe inlet valve system |
| US10376687B2 (en) | 2012-10-16 | 2019-08-13 | Acist Medical Systems, Inc. | Controlling flow in a medical injection system |
| US11560964B2 (en) | 2020-08-21 | 2023-01-24 | Acist Medical Systems, Inc. | Valve actuation device coupling |
| US11998716B2 (en) | 2020-01-30 | 2024-06-04 | Acist Medical Systems, Inc. | Valve assembly |
-
2000
- 2000-06-28 CA CA 2312632 patent/CA2312632A1/en not_active Abandoned
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10322277B2 (en) | 2010-11-24 | 2019-06-18 | Acist Medical Systems, Inc. | Contrast media injector syringe inlet valve system |
| US10376687B2 (en) | 2012-10-16 | 2019-08-13 | Acist Medical Systems, Inc. | Controlling flow in a medical injection system |
| WO2017139103A1 (en) * | 2016-02-09 | 2017-08-17 | Acist Medical Systems, Inc. | Manifold connection assembly having a surface finish |
| US11998716B2 (en) | 2020-01-30 | 2024-06-04 | Acist Medical Systems, Inc. | Valve assembly |
| US11560964B2 (en) | 2020-08-21 | 2023-01-24 | Acist Medical Systems, Inc. | Valve actuation device coupling |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Dead |