US3618551A - Dual position canopy for underwater crafts - Google Patents
Dual position canopy for underwater crafts Download PDFInfo
- Publication number
- US3618551A US3618551A US864429A US3618551DA US3618551A US 3618551 A US3618551 A US 3618551A US 864429 A US864429 A US 864429A US 3618551D A US3618551D A US 3618551DA US 3618551 A US3618551 A US 3618551A
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- canopy
- hull
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63C—LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS; LIFE-SAVING IN WATER; EQUIPMENT FOR DWELLING OR WORKING UNDER WATER; MEANS FOR SALVAGING OR SEARCHING FOR UNDERWATER OBJECTS
- B63C11/00—Equipment for dwelling or working underwater; Means for searching for underwater objects
- B63C11/46—Divers' sleds or like craft, i.e. craft on which man in diving-suit rides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63G—OFFENSIVE OR DEFENSIVE ARRANGEMENTS ON VESSELS; MINE-LAYING; MINE-SWEEPING; SUBMARINES; AIRCRAFT CARRIERS
- B63G8/00—Underwater vessels, e.g. submarines; Equipment specially adapted therefor
Definitions
- This invention relates to an underwater craft and, more particularly, to small nonwatertight and flooded underwater crafts that are capable of carrying at least one diver in a wet suit with air tanks and breathing apparatus.
- Underwater crafts may be classified as either watertight or nonwatertight. Watertight crafts are made rigid and strong to withstand the water pressure and therefore the streamlining of the hull is inherently fixed. Nonwatertight craft are made light and small to provide minimum weight and drag so that the operating range with a given power supply is optimized.
- an object of this invention is to produce an underwater craft with minimum drag wherein the diver can move from a sitting to a prone position and back again at will.
- Another object of this invention is to produce a simple, small underwater craft wherein the drag is adjustable to accommodate either a sitting or prone position of the diver.
- FIG. I shows a schematic pictorial view of a typical underwater craft embodying the invention
- FIG. 2 is a plan view of the front portion of the craft in FIG. I with a portion of the canopy broken away to show internal details;
- FIG. 3 is an elevation in section of the craft taken on line 3-3 of FIG. 2;
- FIG. 4 is another section of the craft taken on the same line 3-3 with the canopy lowered.
- FIG. 5 is a section of the craft taken substantially on line 5- 5 in FIG. 2 with the canopy moved to its rear position allowing access to the craft.
- FIG. 1 a pictorial schematic of an underwater craft employing the invention is shown in FIG. 1.
- the craft has an elongated hull which may be made of, for example, fiber glass and plastic or metal.
- the hull 10 has a rounded bow 11 and a screw 12 at the aft end. Behind the screw 12 are disposed a rudder l4 and a horizontal stabilizer l6 and bow planes 16a at the forward end to provide pitch capability. Forward of the screw 12 is located an engine compartment 17 and a divers compartment 18 located in front of engine compartment. An opening 13 is formed in the hull 10 for access into the divers compartment 18. Over this opening 13 is disposed a transparent canopy 19.
- the canopy 19 is bubble shaped and is made into two sections, a water breaker 21 and a cover 22.
- the two sections make ingress and egress easy for the diver as will be explained hereinafter.
- a transparent plate or window 23 In the bottom of the craft at the forward end is disposed a transparent plate or window 23 (more clearly shown in FIG. 3).
- Canopy 19 is mounted in a novel manner whereby the diver can lower the canopy into the hull 10 to decrease the drag.
- the preferred manner in mounting the canopy will now be described.
- the rails 31 and 32 are arched to conform to the shape of the hull 10 as shown.
- a linkage is connected to each one of the rails 31 and 32.
- the linkage, connected to rail 31, includes two arms 35 and 36 (FIG. 3) that are pin-connected together while one end of arm 35 is pin-connected to the rail 31 and one end of arm 36 is pinconnected to the hull 10 in a suitable manner.
- the linkage, connected to rail 32, includes two arms 37 and 38 (FIG. 5) pin-connected together and to rail 32 and hull I0.
- the rails 31 and 32 are preferably channel shaped so that the water breaker 21 and the cover 22 are preferably slidably mounted thereon with the aid of suitable slides, such as slides 41 shown in FIG. 5.
- suitable slides such as slides 41 shown in FIG. 5.
- the canopy 19 is in the lowered position as shown in FIG. 4.
- the diver must now assume the prone position.
- the diver places the canopy 19 in this position (FIG. 4) when he desires to view through the bottom transparent plate 23 because he wants to reduce drag and save power.
- a suitable stop 44 (FIG. 3) is provided on the hull 10 to prevent the canopy 19 from falling when in the raised position, since the arm 36 has been rotated clockwise slightly past dead center" position.
- a stop 45 prevents the canopy from dropping more than required to produce good streamlining (FIG. 4).
- Arm 38 is provided with stops 44' and 45 (as shown in FIG. 5) which serve similar functions as stops 44 and 45.
- a closure plate 51 pivots clockwise, as viewed in FIG. 4, to close the opening formed as shown thereby preserving the streamlining.
- the closure plate 51 pivots about an horizontal axis because one edge thereof is pin-connected connected to suitable slides, such as slide 52 (FIG. 3), engaging a rail 53.
- suitable slides such as slide 52 (FIG. 3)
- the slide at the other end of plate 51 slides in another rail 54.
- Rails 53 and 54 are also channel shaped but have stops such as stops 55 (FIG. 3) at both ends to that the slides 52 do not readily become derailed therefrom; as will become apparent hereinafter.
- Access into the craft is provided by having two additional rails 61 and 62 which are fixed to the hull l0 and disposed in line with the respective rails 31 and 32.
- the cover 22 can be urged aft so that slides 41 thereon pass from rails 31 and 32 into rails 61 and 62 respectively as shown in FIG. 5.
- the closure plate 51 moves aft with the cover 22, but is stopped by stops 55 at the aft end of the rails.
- Stops 55 at the forward end of the respective rails 53 and 54 keep the plate 51 from becoming derailed.
- suitable levers 65 are provided on, for example, arms 36 and 38.
- An underwater craft comprising:
- said first means including two spaced parallelly disposed rails, extending fore and aft of said hull, and
- said second means including pins mounted to said hull and the forward end of each of said rails coupled to a respective pin so that each rail pivots about the respective pin.
- said canopy is bubble shape so that the edge thereby is disposed adjacent the edge of the opening when said canopy is in said first position and the top of said canopy is a continuation of the fairing of said hull at least at the forward position thereof when said canopy is in said second position, and
- a closure plate pivotally mounted to said hull adjacent the aft portion of said opening to complete the fairing of said hull when said canopy is in said second position and pivots upwards when said canopy is in said first position.
- said canopy is bubble shape so that the edge is disposed adjacent the edge of the opening when said canopy is in said first position and the top of said canopy is a continuation of the fairing of said hull at least at the forward portion thereof when said canopy is in said second position.
- a closure plate pivotally mounted to said hull adjacent the aft portion of said opening to complete the fairing of said hull when said canopy is in said second position, and pivots upwards when said canopy is in said first position slides slidably mounted to said rails and fixed to said canopy to cause the canopy to slide along said rails,
- said closure plate having slides that slidably engage said second rails.
- An underwater craft comprising:
- a hull with an opening formed in the upper deck thereof.
- said canopy being bubble shape so that the edge thereby is disposed adjacent the edge of the opening when said canopy is in said first position and the top of said canopy is a continuation of the fairing of said hull at least at the forward portion thereof when said canopy is in said second position.
- a closure plate pivotally mounted to said hull adjacent the aft portion of said opening to complete the fairing of said hull when said canopy is in said second position, and pivots upwards when said canopy is in said first position.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
Abstract
A nonwatertight underwater craft capable of carrying a diver wherein the hull has a high silhouette when the diver is sitting and converts to a low silhouette when the diver is in a prone position. The craft has a bubble type canopy that is positioned in an opening on the upper deck. The canopy is hinged connected at its forward end and the diver can rotate the canopy downward into the hull. Behind the canopy is mounted a closure plate that is hinged at its aft end to the hull allowing the plate to rotate forward to a horizontal position whenever the canopy is lowered to close the opening and thereby optimize the streamlining and minimize drag when the canopy is lowered. This invention relates to an underwater craft and, more particularly, to small nonwatertight and flooded underwater crafts that are capable of carrying at least one diver in a wet suit with air tanks and breathing apparatus.
Description
United States Patent [72] Inventor John M. Deslierres Rolling Hills, Calif. [211 App]. No. 864,429 [22] Filed Oct. 7, 1969 [45] Patented Nov. 9, 1971 [73] Assignee North American Rockwell Corporation El Segundo, Calif.
[54] DUAL POSITION CANOPY FOR UNDERWATER CRAFTS 4 Claims, 5 Drawing Figs.
[52] U.S.Cl 114/16 A, 244/121 [51 Int. Cl 863g 8/00 [50] Field of Search. 115/6.1; 9/1; 114/16 A, 16 R; 296/84;244/129 W, 121
[56] References Cited UNITED STATES PATENTS 2,108,289 2/1938 Laddon 244/121 2,332,158 10/1943 MaGillet a1. 244/121 3,160,133 12/1964 Walker ABSTRACT: A nonwatertight underwater craft capable of carrying a diver wherein the hull has a high silhouette when the diver is sitting and converts to a low silhouette when the diver is in a prone position. The craft has a bubble type canopy that is positioned in an opening on the upper deck The canopy is hinged connected at its forward end and the diver can rotate the canopy downward into the hull. Behind the canopy is mounted a closure plate that is hinged at its aft end to the hull allowing the plate to rotate forward to a horizontal position whenever the canopy is lowered to close the opening and thereby optimize the streamlining and minimize drag when the canopy is lowered.
This invention relates to an underwater craft and, more particularly, to small nonwatertight and flooded underwater crafts that are capable of carrying at least one diver in a wet suit with air tanks and breathing apparatus.
PATENTEUNnv 9197a 3.618.551
SHEET 2 0F 2 FIG. 4
LLlIIIlIlII/llIIIIIIIIIIIIIIIIIII[III/ INVIz'N'IOR. JOHN M. DESL/ERRES AT TORNE Y DUAL POSITION CANOPY FOR UNDERWATER CRAFTS BACKGROUND OF THE DISCLOSURE Underwater crafts may be classified as either watertight or nonwatertight. Watertight crafts are made rigid and strong to withstand the water pressure and therefore the streamlining of the hull is inherently fixed. Nonwatertight craft are made light and small to provide minimum weight and drag so that the operating range with a given power supply is optimized. Although a nonwatertight craft gives the diver greater latitude of operation than he would have without the craft, typical present day crafts require the diver to assume either a prone or a sitting position. Therefore, after relatively long periods of being submersed, the diver becomes cold due to his motionless state because wetsuits only retard the conduction of body heat to the water and, when the body generates less heat, the coldness of the water will penetrate the wet suit. However, if one attempts to make a craft large enough for the diver to move around, the drag would have to be increased.
Therefore an object of this invention is to produce an underwater craft with minimum drag wherein the diver can move from a sitting to a prone position and back again at will.
Another object of this invention is to produce a simple, small underwater craft wherein the drag is adjustable to accommodate either a sitting or prone position of the diver.
DESCRIPTION OF THE DRAWINGS These and other objects and features of advantage will become more apparent from the following description of the invention and the accompanying drawings in which:
FIG. I shows a schematic pictorial view of a typical underwater craft embodying the invention;
FIG. 2 is a plan view of the front portion of the craft in FIG. I with a portion of the canopy broken away to show internal details;
FIG. 3 is an elevation in section of the craft taken on line 3-3 of FIG. 2;
FIG. 4 is another section of the craft taken on the same line 3-3 with the canopy lowered.
FIG. 5 is a section of the craft taken substantially on line 5- 5 in FIG. 2 with the canopy moved to its rear position allowing access to the craft.
Referring to the drawings, a pictorial schematic of an underwater craft employing the invention is shown in FIG. 1. The craft has an elongated hull which may be made of, for example, fiber glass and plastic or metal. The hull 10 has a rounded bow 11 and a screw 12 at the aft end. Behind the screw 12 are disposed a rudder l4 and a horizontal stabilizer l6 and bow planes 16a at the forward end to provide pitch capability. Forward of the screw 12 is located an engine compartment 17 and a divers compartment 18 located in front of engine compartment. An opening 13 is formed in the hull 10 for access into the divers compartment 18. Over this opening 13 is disposed a transparent canopy 19. The canopy 19 is bubble shaped and is made into two sections, a water breaker 21 and a cover 22. The two sections make ingress and egress easy for the diver as will be explained hereinafter. In the bottom of the craft at the forward end is disposed a transparent plate or window 23 (more clearly shown in FIG. 3).
Canopy 19 is mounted in a novel manner whereby the diver can lower the canopy into the hull 10 to decrease the drag. The preferred manner in mounting the canopy will now be described. Within the hull 10 are located two parallelly disposed rails 31 and 32 (FIG. 2) that are pin connected by pins 33 at their forward ends to the hull 10. The rails 31 and 32 are arched to conform to the shape of the hull 10 as shown. A linkage is connected to each one of the rails 31 and 32. The linkage, connected to rail 31, includes two arms 35 and 36 (FIG. 3) that are pin-connected together while one end of arm 35 is pin-connected to the rail 31 and one end of arm 36 is pinconnected to the hull 10 in a suitable manner. Similarily the linkage, connected to rail 32, includes two arms 37 and 38 (FIG. 5) pin-connected together and to rail 32 and hull I0. The rails 31 and 32 are preferably channel shaped so that the water breaker 21 and the cover 22 are preferably slidably mounted thereon with the aid of suitable slides, such as slides 41 shown in FIG. 5. Thus, whenever the pair of arms 35 and 36 and the pair of arms 37 and 38 are disposed in a straight line, the canopy I9 is in the raised position as shown in FIG. 3. The diver has sufficient head room to allow him to assume a sitting position, and he is able to look out of the canopy l9. Whenever the pair of arms 35 and 36 and the pair 37 and 38 are at an angle to each other, the canopy 19 is in the lowered position as shown in FIG. 4. The diver must now assume the prone position. The diver places the canopy 19 in this position (FIG. 4) when he desires to view through the bottom transparent plate 23 because he wants to reduce drag and save power. A suitable stop 44 (FIG. 3) is provided on the hull 10 to prevent the canopy 19 from falling when in the raised position, since the arm 36 has been rotated clockwise slightly past dead center" position. A stop 45 prevents the canopy from dropping more than required to produce good streamlining (FIG. 4). Arm 38 is provided with stops 44' and 45 (as shown in FIG. 5) which serve similar functions as stops 44 and 45. When canopy 19 is in the lowered position, a closure plate 51 pivots clockwise, as viewed in FIG. 4, to close the opening formed as shown thereby preserving the streamlining. The closure plate 51 pivots about an horizontal axis because one edge thereof is pin-connected connected to suitable slides, such as slide 52 (FIG. 3), engaging a rail 53. The slide at the other end of plate 51 slides in another rail 54. Rails 53 and 54 are also channel shaped but have stops such as stops 55 (FIG. 3) at both ends to that the slides 52 do not readily become derailed therefrom; as will become apparent hereinafter.
Access into the craft is provided by having two additional rails 61 and 62 which are fixed to the hull l0 and disposed in line with the respective rails 31 and 32. The cover 22 can be urged aft so that slides 41 thereon pass from rails 31 and 32 into rails 61 and 62 respectively as shown in FIG. 5. The closure plate 51 moves aft with the cover 22, but is stopped by stops 55 at the aft end of the rails. When the diver pulls the cover 22 over his head the plate 51 is urged to follow, for example, by a spring means (not shown). Stops 55 at the forward end of the respective rails 53 and 54 keep the plate 51 from becoming derailed. To aid the diver in lowering the canopy l9 suitable levers 65 are provided on, for example, arms 36 and 38.
From the forthgoing explanation of the invention modifications and changes therein will become apparent to those skilled in the art. Accordingly, the invention is not limited to the specific details described exemplary embodiment but only as indicated by the scope of the following claims:
What is claimed is:
1. An underwater craft comprising:
a hull with an opening formed in the upper deck thereof,
a transparent canopy disposed over said opening,
first means for supporting and mounting said canopy to said hull,
second means disposed on the forward end of said first means for mounting said first means to said hull in pivoting relationship therewith,
third means for holding said canopy at a first position with respect to said hull and at a second position with respect to said hull,
said first means including two spaced parallelly disposed rails, extending fore and aft of said hull, and
said second means including pins mounted to said hull and the forward end of each of said rails coupled to a respective pin so that each rail pivots about the respective pin.
2. The craft of claim I wherein:
said canopy is bubble shape so that the edge thereby is disposed adjacent the edge of the opening when said canopy is in said first position and the top of said canopy is a continuation of the fairing of said hull at least at the forward position thereof when said canopy is in said second position, and
a closure plate pivotally mounted to said hull adjacent the aft portion of said opening to complete the fairing of said hull when said canopy is in said second position and pivots upwards when said canopy is in said first position.
3. The craft of claim 1 wherein:
said canopy is bubble shape so that the edge is disposed adjacent the edge of the opening when said canopy is in said first position and the top of said canopy is a continuation of the fairing of said hull at least at the forward portion thereof when said canopy is in said second position.
a closure plate pivotally mounted to said hull adjacent the aft portion of said opening to complete the fairing of said hull when said canopy is in said second position, and pivots upwards when said canopy is in said first position slides slidably mounted to said rails and fixed to said canopy to cause the canopy to slide along said rails,
a pair of second rails fixedly mounted to said hull and disposed in line with said first mentioned rails so that said slides can be engaged in sliding relation with said second rails, and
said closure plate having slides that slidably engage said second rails.
4. An underwater craft comprising:
a hull with an opening formed in the upper deck thereof.
a transparent canopy disposed over said opening,
first means for supporting and mounting said canopy to said hull,
second means disposed on the forward end of said first means for mounting said first means to said hull in pivoting relationship therewith,
third means for holding said canopy at a first position with respect to said hull and at a second position with respect to said hull.
said canopy being bubble shape so that the edge thereby is disposed adjacent the edge of the opening when said canopy is in said first position and the top of said canopy is a continuation of the fairing of said hull at least at the forward portion thereof when said canopy is in said second position. and
a closure plate pivotally mounted to said hull adjacent the aft portion of said opening to complete the fairing of said hull when said canopy is in said second position, and pivots upwards when said canopy is in said first position.
Claims (4)
1. An underwater craft comprising: a hull with an opening formed in the upper deck thereof, a transparent canopy disposed over said opening, first means for supporting and mounting said canopy to said hull, second means disposed on the forward end of said first means for mounting said first means to said hull in pivoting relationship therewith, third means for holding said canopy at a first position with respect to said hull and at a second position with respect to said hull, said first means including two spaced parallelly disposed rails, extending fore and aft of said hull, and said second means including pins mounted to said hull and the forward end of each of said rails coupled to a respective pin so that each rail pivots about the respective pin.
2. The craft of claim 1 wherein: said canopy is bubble shape so that the edge thereby is disposed adjacent the edge of the opening when said canopy is in said first position and the top of said canopy is a continuation of the fairing of said hull at least at the forward position thereof when said canopy is in said second position, and a closure plate pivotally mounted to said hull adjacent the aft portion of said opening to complete the fairing of said hull when said canopy is in said second position, and pivots upwards when said canopy is in said first position.
3. The craft of claim 1 wherein: said canopy is bubble shape so that the edge is disposed adjacent the edge of the opening when said canopy is in said first position and the top of said canopy is a continuation of the fairing of said hull at least at the forward portion thereof when said canopy is in said second position, a closure plate pivotally mounted to said hull adjacent the aft portion of said opening to complete the fairing of said hull when said canopy is in said second position, and pivots upwards when said canopy is in said first position, slides slidably mounted to said rails and fixed to said canopy to cause the canopy to slide along said rails, a pair of second rails fixedly mounted to said hull and disposed in line with said first mentioned rails so that said slides can be engaged in sliding relation with said second rails, and said closure plate having slides that slidably engage said second rails.
4. An underwater craft comprising: a hull with an opening formed in the upper deck thereof, a transparent canopy disposed over said opening, first means for supporting and mounting said canopy to said hull, second means disposed on the forward end of said first means for mounting said first means to said hull in pivoting relationship therewith, third means for holding said canopy at a first position with respect to said hull and at a second position with respect to said hull, said canopy being bubble shape so that the edge thereby is disposed adjacent the edge of the opening when said canopy is in said first position and the top of said canopy is a continuation of the fairing of said hull at least at the forward portion thereof when said canopy is in said second position, and a closure plate pivotally mounted to said hull adjacent the aft portion of said opening to complete the fairing of said hull when said canopy is in said second position, and pivots upwards when said canopy is in said first position.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US86442969A | 1969-10-07 | 1969-10-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US3618551A true US3618551A (en) | 1971-11-09 |
Family
ID=25343257
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US864429A Expired - Lifetime US3618551A (en) | 1969-10-07 | 1969-10-07 | Dual position canopy for underwater crafts |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US3618551A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3980035A (en) * | 1974-12-23 | 1976-09-14 | Johansson Sten E | Attitude control devices for stern drive power boats |
| US4889066A (en) * | 1988-06-02 | 1989-12-26 | Blue Space Submersibles, Inc. | Submersible vehicle |
| US5158034A (en) * | 1992-02-24 | 1992-10-27 | Tontech International Co., Ltd. | Automatic swimming board |
| DE19712257A1 (en) * | 1997-03-24 | 1998-10-01 | Rudolph Stephan Dr Ing | Diving device and method for its manufacture |
| US6352046B1 (en) * | 2000-01-27 | 2002-03-05 | Proform Company, Llc | Telescoping and rolling cover assembly for a barge |
| US6606960B1 (en) * | 2001-02-15 | 2003-08-19 | The United States Of America As Represented By The Secretary Of The Navy | SCUBA diver fairing |
| EP2088076A2 (en) * | 2008-02-05 | 2009-08-12 | Gabler Maschinenbau GmbH | Underwater swimming aid |
| US9567050B2 (en) * | 2015-05-22 | 2017-02-14 | Ting Fong Liu | Human-powered underwater propulsor |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2108289A (en) * | 1935-06-06 | 1938-02-15 | Cons Aircraft Corp | Aircraft windshield and hatch |
| US2332158A (en) * | 1939-12-30 | 1943-10-19 | Vultee Aircraft Inc | Cockpit enclosure for airplanes |
| US3160133A (en) * | 1961-12-28 | 1964-12-08 | Harold H Walker | Submarine vehicle |
-
1969
- 1969-10-07 US US864429A patent/US3618551A/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2108289A (en) * | 1935-06-06 | 1938-02-15 | Cons Aircraft Corp | Aircraft windshield and hatch |
| US2332158A (en) * | 1939-12-30 | 1943-10-19 | Vultee Aircraft Inc | Cockpit enclosure for airplanes |
| US3160133A (en) * | 1961-12-28 | 1964-12-08 | Harold H Walker | Submarine vehicle |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3980035A (en) * | 1974-12-23 | 1976-09-14 | Johansson Sten E | Attitude control devices for stern drive power boats |
| US4889066A (en) * | 1988-06-02 | 1989-12-26 | Blue Space Submersibles, Inc. | Submersible vehicle |
| US5158034A (en) * | 1992-02-24 | 1992-10-27 | Tontech International Co., Ltd. | Automatic swimming board |
| DE19712257A1 (en) * | 1997-03-24 | 1998-10-01 | Rudolph Stephan Dr Ing | Diving device and method for its manufacture |
| US6079348A (en) * | 1997-03-24 | 2000-06-27 | Rudolph; Stephan | Diving apparatus and method for its production |
| US6352046B1 (en) * | 2000-01-27 | 2002-03-05 | Proform Company, Llc | Telescoping and rolling cover assembly for a barge |
| US6443084B1 (en) * | 2000-01-27 | 2002-09-03 | Robin L. Berg, Sr. | Telescoping and rolling cover assembly for a barge |
| US6606960B1 (en) * | 2001-02-15 | 2003-08-19 | The United States Of America As Represented By The Secretary Of The Navy | SCUBA diver fairing |
| EP2088076A2 (en) * | 2008-02-05 | 2009-08-12 | Gabler Maschinenbau GmbH | Underwater swimming aid |
| EP2088076A3 (en) * | 2008-02-05 | 2013-04-24 | Gabler Maschinenbau GmbH | Underwater swimming aid |
| US9567050B2 (en) * | 2015-05-22 | 2017-02-14 | Ting Fong Liu | Human-powered underwater propulsor |
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