US3812804A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for floating a vehicle for underwater operation
Assignee: Komatsu Ltd
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Filing: 1971-07-29
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Granted: 1974-05-28
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Expires: 1991-07-29
Abstract
Abstract An apparatus for floating a vehicle for operating under water and which has a pair of floats each having upper and lower convex members and a resilient cylinder and secured to both sides of the vehicle, and pipes for feeding compressed air to the floats.
Inventors
- 👤 Y Tanaka
- 👤 Y Nagata
- 👤 T Yoda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:42
CPC Classifications
E; E02; E02F; E02F5/00; E02F5/006; B; B63; B63B; B63B43/00; B63B43/02; B63B43/10; B63B43/14
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
156 words
An apparatus for floating a vehicle for operating underwater comprising a pair of floats each having an upper convex member, a lower convex member, respectively, and each lower convex member having a hole on the bottom and secured to the side of the vehicle body, and a resilient cylinder mounted between each of said upper and lower convex members, and pipes for feeding compressed air into said floats, wherein said each upper convex member is continuous in structure without openings, and wherein a pair of ropes is included with each secured at one end to the outer surface of each said upper convex member respectively, and inserted at the other end through pulley blocks and through the holes of said lower convex members respectively and secured to the top inside of each said upper convex member respectively, and at least one pair of resilient strings for connecting said rope to the inner surface of said cylinder.
Claim 2
Independent Claim
156 words
An apparatus for floating a vehicle for operating underwater comprising a pair of floats each having an upper convex member, a lower convex member, respectively, and each lower convex member having a hole on the bottom and secured to the side of the vehicle body, and a resilient cylinder mounted between each of said upper and lower convex members, and pipes for feeding compressed air into said floats, wherein said each upper convex member is continuous in structure without openings, and wherein a pair of ropes is included with each secured at one end to the outer surface of each said upper convex member respectively, and inserted at the other end through pulley blocks and through the holes of said lower convex members respectively and secured to the top inside of each said upper convex member respectively, and at least one pair of resilient strings for connecting said rope to the inner surface of said cylinder.
Claim 3
Dependent Claim
35 words
An apparatus according to claim 1, further comprising a pair of posts, each attached to the vehicle body adjacent to said floats, said pulley blocks comprising upper and lower pulley blocks attached to said posts.
Claim 4
Dependent Claim
98 words
An apparatus according to claim 1, further comprising first flanges provided at the uppermost edges of the outer periphery of each of said lower convex members respectively, second flanges provided at the lowermost edges of each of the outer periphery of said upper convex members respectively, at least two connectors pivotally secured at one end to the lower surface of each of said first flanges respectively for interlocking both said first and second flanges, at least two hydraulic cylinders pivotally secured at one end to the vehicle body and pivotally secured at the other end to said connectors.
Claim 5
Dependent Claim
122 words
An apparatus according to claim 1, further comprising a pair of posts each attached to the vehicle body adjacent to said floats, said pulley blocks comprising upper and lower pulley blocks attached to Said posts, first flanges provided at the uppermost edges of each of the outer periphery of said lower convex members respectively, second flanges provided at the lowermost edges of the outer periphery of each of said upper convex members respectively, at least two connectors pivotally secured at one end to the lower surface of said first flanges for interlocking both said first and second flanges, at least two hydraulic cylinders pivotally secured at one end to the vehicle body and pivotally secured at the other end to said connectors.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-05-27 | 1977-11-26 | 1978-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-05-27 | 1981-11-26 | 1982-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-05-27 | 1985-11-26 | 1986-05-28 | $7700.00 | Window Closed / Lapsed |