US3524160A - Underwater operable connector - Google Patents
Underwater operable connector Download PDFInfo
- Publication number
- US3524160A US3524160A US760319A US3524160DA US3524160A US 3524160 A US3524160 A US 3524160A US 760319 A US760319 A US 760319A US 3524160D A US3524160D A US 3524160DA US 3524160 A US3524160 A US 3524160A
- Authority
- US
- United States
- Prior art keywords
- contact
- bore
- diameter
- housing
- bores
- 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.)
- Expired - Lifetime
Links
- 230000013011 mating Effects 0.000 description 14
- 230000004323 axial length Effects 0.000 description 13
- 239000004020 conductor Substances 0.000 description 7
- 230000008878 coupling Effects 0.000 description 6
- 238000010168 coupling process Methods 0.000 description 6
- 238000005859 coupling reaction Methods 0.000 description 6
- 238000007789 sealing Methods 0.000 description 5
- 239000010935 stainless steel Substances 0.000 description 5
- 229910001220 stainless steel Inorganic materials 0.000 description 5
- 239000011810 insulating material Substances 0.000 description 4
- 239000012530 fluid Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229920001342 Bakelite® Polymers 0.000 description 2
- 239000004637 bakelite Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000011244 liquid electrolyte Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910000906 Bronze Inorganic materials 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- DMFGNRRURHSENX-UHFFFAOYSA-N beryllium copper Chemical compound [Be].[Cu] DMFGNRRURHSENX-UHFFFAOYSA-N 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- BHEPBYXIRTUNPN-UHFFFAOYSA-N hydridophosphorus(.) (triplet) Chemical compound [PH] BHEPBYXIRTUNPN-UHFFFAOYSA-N 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229920001084 poly(chloroprene) Polymers 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/46—Bases; Cases
- H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
- H01R13/523—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases for use under water
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/64—Means for preventing incorrect coupling
Definitions
- This invention provides an electrical connector having contacts in the line and load side housings which are sealed off from any outside environment when the housings are either in a mated or unmated position. Additionally, the connector of this invention can be coupled and uncoupled while electrically energized and submerged in any liquid electrolyte, for example water, without causing an electrical short circuit. In other words an underwater operable connector capable of preventing contact between connectors and ambient liquid during coupling and uncoupling operations.
- FIG. 1 is a cross-sectional view of a line side housing embodying the principles of the present invention
- FIG. 2 is a cross-sectional view of a load side housing embodying the principles of the present invention
- FIG. 3 is an end view of the load side housing taken on line 3-3 of FIG. 2;
- FIG. 4 is a detail view of an electrical contact
- FIG. 5 is a cross-sectional view of an assembled electrical connector embodying the present invention.
- FIGS. 1 through 5 illustrate one preferred embodiment of an electrical connector of the present invention comprising an elongated line side housing mated with an elongated load side housing 12 each of which have main body portions thereof formed from any suitable resilient insulating material, such as molded neoprene or rubber.
- the line side housing 10 has an elongated main body portion 14 which extends rearwardly (to the left in FIG. 1) from a mating face 26 and comprises: a cylindrical forward portion 16; a cylindrical intermediate portion 18 having an outside diameter thereof smaller than the outside diameter of portion 16; and a frusto conical rearwardly tapering end portion 20 extending rearwardly from portion 18.
- a plurality, as shown 20, of axially extending circumferentially spaced through 'bores 22, are provided in the forward body portion 16 intermediate the outer periphery thereof and the outer periphery of portion 18 for receiving movable contacts 24 therein, in a manner hereinafter described.
- a coaxial cylindrical cable receiving ibore 30, extends axially forwardly from the rear end of body portion 20 with the forward end thereof located rearwardly adjacent the forward end of body portion 18.
- an elongated electrical contact 32 constructed of any suitable material, for example silver plated beryllium copper, comprises an axially extending lower lug strap portion 34 and an upper circular collar or loop portion 36, the inside diameter of which is equal to the diameter of bore 22.
- each contact 32 has portion 36 thereof positioned around a respective bore 22, intermediate the body portion 16 with'the lower lug portion 34 thereof extending radially inward therefrom. As shown, one fixed electrical contact 32 is provided for each bore 22.
- a multiple conductor cable 38 is received within bore 30 'and at the forwardmost end thereof the cable insulation" is stripped away to provide a plurality, as shown 20, of electrical conductors 40.
- Conductors 40 are electrically connected to the lower ends of lug straps 34, respectively, prior to the forming of ibody portion 14 and positioning of contacts 32.
- the elongated movable contact 24 is of any suitable electrical conductive material, for example a phosphorous bronze alloy, and comprises identical forward and rearward circular end portions 42 and 46, respectively, which have a diameter thereof equal to the diameter of bore 22 and an axial length thereof equal to the strip width of the fixed contact 32, and a relatively long slender intermediate portion 48 having a diameter thereof less than the diameter of the end portions 42 and 46.
- the movable contact 24 is located within bore 22 intermediate the axial ends thereof so that the inner periphery of portion 36 of fixed contact 32 is in contact with the outer periphery of insulating sleeve 50 intermediate the axial end thereof.
- identical bore sealing elements or insulating plugs 52 and 54, respectively, of a hard insulating material, such as Bakelite or the like, which have an outside diameter thereof slightly larger than the diameter of bore 22, are securely aixed, in any suitable manner, to the axial ends of contacts 24 and slidably and sealably received within bores 22 by deforming the peripheral walls thereof radially outward. The deformation of the walls of bores 22 are facilitated by deforming slots 29.
- Plugs 52 and 54 and contact 24 are axially aligned and have a total axial length approximately eq-u-al to the axial length of bore 22.
- a hollow elongated rigid sleeve 56 preferably formed from stainless steel, having an inside diameter and an axial length thereof equal respectively to the outside diameter and axial length of the intermediate body portion 18, comprises a forward portion 58 which has an outside diameter thereof equal to the outside diameter of body portion 16, and arearward portion 60 having a lesser outside diameter thereof than the outside diameter of portion 58.
- Sleeve 56 is snugly and non-rotatably received around the outer periphery of body portion 18 having the forwardmost surface of sleeve portion 58 in contact with the rearward surface of body portion 16.
- a plurality, as shown 20, of axially extending through step bores '62, coaxial with the respective bores 22 in the main body 14 are provided in the forward sleeve portion 58,- and comprise a rearward portion 64 and a forward portion 66 of a lesser diameter than portion 64.
- a cylindrical rigid contact carrier rod 67 preferably formed from stainless steel, of a diameter approximately equal to the diameter of bore portion 66, extends axially forward from a rear end thereof located intermediate sleeve portion 60, through bore 58 and is firmly secured at the forwardmost end thereof to the rearward insert pl-ug 54.
- a contact carrier return spring 68 encompasses a portion of the contact carrier rod 67 which extends from the rearwardmost end of rod 67 to the forwardmost end of bore portion 64.
- a retaining head 69 is provided in the rearwardmost end of rod 67 to prevent the spring 68 from sliding off the rod 67.
- An elongated rigid coupling casing 72 preferably formed from stainless steel, of a generally annular cross section, having a constant outside diameter, comprises: a forward internally threaded portion 74 having an inside diameter thereof slightly larger than the outside diameter of body portion I16; an intermediate portion 76 with an inside diameter thereof essentially equal to the inside diameter of portion 74; and a rear housing engaging portion 76 which has an inside diameter thereof equal to the outside diameter of sleeve portion 60.
- Casing 72 is axially dimensioned so that when the main body portion 14 is fitted therewithin and the contact carrier return spring 68 is in the ⁇ unrestrained position thereof, portion 78 of casing 72 has the inner periphery thereof in contact with and is slidably and rotatably received by the outer periphery of sleeve portion 60 forwardly adjacent the rearward end thereof and portion 74 of casing 72 is located axially forward of the mating face 26.
- An annular stop bar 80 is rigidly affixed in a groove 82 provided in sleeve portion 60 rearwardly adjacent the rear end of the casing portion 78 to prevent the casing 72 from sliding rearward thereof.
- a plurality, as shown 2, of annular washers 84 are slidably and rotatably received around the outer periphery of sleeve portion 60 intermediate the forward face of casing portion 78 and the rearward end of the carrier retaining rod heads 69.
- Portion 74 of casing 72 threadably engages the load side housing 12 and urges the movable contact 24 axially forward to complete an electrical circuit.
- the load side housing 12 has an elongated main body portion 88 which extends rearwardly (to the right in FIG. 2) from a mating face 98 and comprises: a cylindrical forward portion 90 having an outside diameter thereof equal to the outside diameter of portion 16 of main ⁇ body 14; a cylindrical intermediate portion 92 which has an outside diameterthereof smaller than the outside diameter of portion 90; and a frustoconical rearwardly tapering end portion 94 extending rearwardly from portion l92.
- the mating face y98 of body portion 90 has a rearwardly extending coaxial cylindrically shaped shallow recess 100 therein which has an outside diameter thereof equal to the outside diameter of recess 28 of housing 10.
- a coaxial cylindrical cable receiving bore 102 extends axially forwardly from the rearward end of body portion 94 to a forwardmost point thereof located intermediate the length of portion 92.
- a cable 38 is received in bore 102 and at the forwardmost end thereof the cable insulation is stripped away to reveal insulated conductors 40" which are electrically connected to the lug straps 34 of fixed electrical contacts 32.
- Portlon 36 of contact 32 is positioned around bore 96 in the forming of body 98 in a manner hereinbefore described.
- a hollow elongated cylindrical rigid sleeve 104 preferably formed from stainless steel and having a constant inside diameter and an axial length thereof equal, respectively, to the outside diameter and axial length of the intermediate body portion 92, comprises: a forward portion 106, the outside surface of which is threaded along the entire axial length thereof to cooperate with the threaded portion 74 of casing 72 when housings 10 and 12 are coupled; an intermediate portion 108 which has an outside diameter thereof less than the outside diameter of portion 106; and a rearward portion 110 ⁇ having a cylindrical forward end of an outside diameter substantially equal to the outside diameter of body portion 90 and a frusto-conical rearwardly tapering end extending rearwardly therefrom.
- Sleeve 104 is snugly and non-rotatably received around the outer periphery of body portion 92 having the forwardmost surface of portion 106 in contact with the rearwardrnost surface of body portion 90.
- An elongated cup-shaped rigid spring receiving chamber member 114 preferably formed from stainless steel, having a radially outwardly extending flange 116 at the open end thereof is slidably received within bore 112 so that the forward surface of flange 116 is in contact with a portion of the rearward surface of portion 106. As shown, the axial length of member 114 forward of flange 116 equals the axial length of bore 112.
- a contact carrier return spring 68' having an outside diameter thereof approximately equal to the inside diameter of member 114, is received within member 114 and in the uncompressed state thereof extends from the forward end of member 114 to the forward face of body portion 94 where a circular depression 118 of a diameter equal to the diameter of spring 68 snugly receives the forward end of spring 68' therein.
- a polarizing pin 120 and a polarizing pin receiving chamber 122 are rmly fixed to the rearward surface of recess 28 on a common diameter equally intermediate the outer periphery and center thereof and extend axially forward thereof to a point forwardly adjacent the mating face 26.
- Pin 120 and chamber 122 cooperate, respectively, in a manner well known in the art with a chamber 122 and a pin 120', which are conjugately mounted at the forward end of housing 12, when housings 10 and 12 are coupled in a manner hereinafter described.
- pins 120 and 120 are respectively inserted into chamber 122 and 122, thereby orienting the housing electrical contact into the desired polar relationship.
- Housing mating faces 26 and 98 are brought into contact where the forwardmost interior thread of coupling casing portion 74 engages the forwardmost exterior thread of sleeve portion 106.
- the housing coupling casing 72 is rotated about the central axis thereof, thereby threading casing 72 onto sleeve 104 which causes the contact carrier rod 67 to move axially forward with respect to mating face 26 and the Contact carrier return spring 68 to compress axially from the uncoupled position thereof.
- the movable contact 24 enters bore 96 and when housings 10 and 12 are completely mated, portion 42 of contact 24 is in electrical and mechanical engagement with the iixed contact 32' and portion 46 is in electrical and mechanical engagement with the fixed contact 32, thereby completing an electrical circuit between line side housing and load side housing 12.
- coupling casing 72 is rotated about the central axis thereof, oppositely the direction of rotation to couple housings 10 and 12, thereby resulting in housing 10 moving axially rearward with respect to housing 12.
- the spring bias of return springs 68 and 68' apply axially directed tensile and compressive forces, respectively, on the movable contacts 24 thereby resulting in contacts 24 and insulating plugs 52 and 54 returning to the uncoupled position thereof, that is being fully contained within bores 22.
- the return springs 68 and 68 can be replaced by a manual return system of suitable construction.
- the housing coupling casing 72 need not have threads at the forward end thereof but could have suitable slots therein to accommodate outwardly extending components of a manual movable contact return system.
- a significant feature of this invention is that the electrical components of the line and load side housings are effectively sealed oif from outside environment and, additionally, the housings can be uncoupled and coupled while electrically energized and submerged in any liquid electrolyte, for example water, without causing an electrical short circuit.
- a hard, not readily deformed, insulating substance can be substituted for the described material of body portions 14 and 88 if a resilient, easily deformed, substance is substituted for the described material of insulating plugs 452 and 54 and insulating sleeve 50.
- the diameter of contact portions 42 and 46 can be slightly larger than the diameter of bore 22 and the axial length thereof can be either larger or smaller than the strip width of contact 32.
- an underwater operable electrical connector of the type comprising a pair of rst and second matable housings adapted to be secured together insealed relationship, the improvement comprising: at least one axially extending bore in each housing of said pair of housings; xed contact means in said housings, respectively communicating with the interior of each of said bores; an elongated movable contact element in said bore of said rst housing movable from one location within said first housing bore and out of contact with said xed contact means to another location partly in said first housing bore and partly in an axially aligned one of said bores of said second housing and located to contact said iixed contacts respectively associated with said first housing bore and said aligned second housing bore when said housings are secured together.
- each of said housings has a plurality of said bores therein and each of said fixed contacts has a circular loop portion slidably receiving at least an end portion of said movable contact element.
- bore sealing elements are located within said bores at each end of each of said movable Contact elements some of said sealing elements being movable from a location within given respecti-ve ones of said 'first housing bores to a location Within respective ones of said second housing bores mated with said given first housing bores.
- each of said matable housings is formed of insulating material at least partially surrounded by respective intertting threaded metallic shells and wherein said movable contact is moved from said one location to said another at least in part during the intertting and threaded engagement of said metallic shells.
- sealing elements are secured to the ends of said movable contacts within said bores and are sealingly mated to said bores but movable therein.
Landscapes
- Connector Housings Or Holding Contact Members (AREA)
Description
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US76031968A | 1968-09-17 | 1968-09-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
US3524160A true US3524160A (en) | 1970-08-11 |
Family
ID=25058739
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US760319A Expired - Lifetime US3524160A (en) | 1968-09-17 | 1968-09-17 | Underwater operable connector |
Country Status (2)
Country | Link |
---|---|
US (1) | US3524160A (en) |
DE (1) | DE1947069A1 (en) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3649949A (en) * | 1970-06-22 | 1972-03-14 | Northrop Corp | Quick disconnect fluid-electrical coupler |
US3651444A (en) * | 1970-06-23 | 1972-03-21 | Amp Inc | Printed circuit board connector |
US3729699A (en) * | 1971-06-29 | 1973-04-24 | Southwest Res Inst | Underwater wet electrical connector |
US3839697A (en) * | 1972-02-11 | 1974-10-01 | Burndy Electra Spa | Connector for automatically establishing electric connections between vehicles, particularly between railroad vehicles |
US3845450A (en) * | 1972-12-26 | 1974-10-29 | Bendix Corp | Underwater electrical connector |
US4005735A (en) * | 1975-12-01 | 1977-02-01 | Eddie Kakuo Miyamoto | Adapter with thread protector |
US4142770A (en) * | 1977-12-27 | 1979-03-06 | Exxon Production Research Company | Subsea electrical connector |
US5401066A (en) * | 1989-09-25 | 1995-03-28 | Preece Incorporated | Fluid flow connector |
US6422885B2 (en) | 1998-07-20 | 2002-07-23 | The Whitaker Corporation | Connector assembly adapted for axial realignment |
US20140030906A1 (en) * | 2012-04-09 | 2014-01-30 | Cbg Corporation | Radial electrical connector resistant to fluids |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1422241A (en) * | 1922-07-11 | Electric multiple-connection plug | ||
US3360764A (en) * | 1964-04-24 | 1967-12-26 | Bac Fernand Georges | Electrical connections |
-
1968
- 1968-09-17 US US760319A patent/US3524160A/en not_active Expired - Lifetime
-
1969
- 1969-09-17 DE DE19691947069 patent/DE1947069A1/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1422241A (en) * | 1922-07-11 | Electric multiple-connection plug | ||
US3360764A (en) * | 1964-04-24 | 1967-12-26 | Bac Fernand Georges | Electrical connections |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3649949A (en) * | 1970-06-22 | 1972-03-14 | Northrop Corp | Quick disconnect fluid-electrical coupler |
US3651444A (en) * | 1970-06-23 | 1972-03-21 | Amp Inc | Printed circuit board connector |
US3729699A (en) * | 1971-06-29 | 1973-04-24 | Southwest Res Inst | Underwater wet electrical connector |
US3839697A (en) * | 1972-02-11 | 1974-10-01 | Burndy Electra Spa | Connector for automatically establishing electric connections between vehicles, particularly between railroad vehicles |
US3845450A (en) * | 1972-12-26 | 1974-10-29 | Bendix Corp | Underwater electrical connector |
US4005735A (en) * | 1975-12-01 | 1977-02-01 | Eddie Kakuo Miyamoto | Adapter with thread protector |
US4142770A (en) * | 1977-12-27 | 1979-03-06 | Exxon Production Research Company | Subsea electrical connector |
US5401066A (en) * | 1989-09-25 | 1995-03-28 | Preece Incorporated | Fluid flow connector |
US6422885B2 (en) | 1998-07-20 | 2002-07-23 | The Whitaker Corporation | Connector assembly adapted for axial realignment |
US20140030906A1 (en) * | 2012-04-09 | 2014-01-30 | Cbg Corporation | Radial electrical connector resistant to fluids |
US9225114B2 (en) * | 2012-04-09 | 2015-12-29 | Cbg Corporation | Radial electrical connector resistant to fluids |
Also Published As
Publication number | Publication date |
---|---|
DE1947069A1 (en) | 1970-09-17 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: JOY TECHNOLOGIES INC., A CORP. OF DE.,PENNSYLVANIA Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:JOY MANUFACTURING COMPANY, A CORP. OF PA;REEL/FRAME:004880/0430 Effective date: 19870529 Owner name: JOY TECHNOLOGIES INC., 301 GRANT STREET, PITTSBURG Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:JOY MANUFACTURING COMPANY, A CORP. OF PA;REEL/FRAME:004880/0430 Effective date: 19870529 Owner name: JOY MANUFACTURING COMPANY, 535 SMITHFIELD STREET, Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:ROBINSON, DONALD, B.,;REEL/FRAME:004720/0014 Effective date: 19680912 |
|
AS | Assignment |
Owner name: JOY TECHNOLOGIES INC., PENNSYLVANIA Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:JOY MANUFACTURING COMPANY, A CORP. OF PA;REEL/FRAME:004747/0261 Effective date: 19870626 Owner name: CITIBANK, N.A.,NEW YORK Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:JOY TECHNOLOGIES INC., 301 GRANT STREET, PITTSBURGH, PA 15219, A DE CORP.;REEL/FRAME:004846/0025 Effective date: 19870626 Owner name: CITIBANK, N.A., 641 LEXINGTON AVENUE, NEW YORK, NE Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:JOY TECHNOLOGIES INC., 301 GRANT STREET, PITTSBURGH, PA 15219, A DE CORP.;REEL/FRAME:004846/0025 Effective date: 19870626 Owner name: JOY TECHNOLOGIES INC., 301 GRANT STREET, PITTSBURG Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:JOY MANUFACTURING COMPANY, A CORP. OF PA;REEL/FRAME:004747/0261 Effective date: 19870626 |
|
AS | Assignment |
Owner name: JOY MANUFACTURING COMPANY,STATELESS Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:JOY TECHNOLOGIES INCL., (A DE CORP.);REEL/FRAME:004827/0367 Effective date: 19870626 Owner name: JOY MANUFACTURING COMPANY Free format text: ASSIGNMENT OF ASSIGNORS INTEREST. EFFECTIVE DATE;ASSIGNOR:JOY TECHNOLOGIES INCL., (A DE CORP.);REEL/FRAME:004827/0367 Effective date: 19870626 |
|
AS | Assignment |
Owner name: CITIBANK, N.A., 641 LEXINGTON AVENUE, NEW YORK, NE Free format text: SECURITY INTEREST;ASSIGNOR:JOY TECHNOLOGIES INC.,;REEL/FRAME:004936/0730 Effective date: 19870626 |
|
AS | Assignment |
Owner name: JOY TECHNOLOGIES INC., A CORP OF DE, PENNSYLVANIA Free format text: RELEASED BY SECURED PARTY;ASSIGNORS:MC CARTNEY, DEREK L.;ARCHIBALD, JOHN H.;REEL/FRAME:005237/0152 Effective date: 19870626 |
|
AS | Assignment |
Owner name: JOY TECHNOLOGIES, INC., A CORP OF DE Free format text: RELEASED BY SECURED PARTY;ASSIGNOR:CITIBANK N.A.;REEL/FRAME:005237/0187 Effective date: 19891011 |