Patent US3721626A successfully refreshed from Google Patents.
Patent EP0176910A1 successfully refreshed from Google Patents.
Patent US3789788A successfully refreshed from Google Patents.
US3789788A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Body seal for underwater device
Assignee: Seatech Corp
•
Filing: 1971-11-19
•
Granted: 1974-02-05
•
Expires: 1991-11-19
Abstract
Abstract Heat from the motor of a sealed underwater vehicle is transferred and dissipated through direct heat transfer paths having sufficient heat transfer capacity to permit the continuous operation of the motor at a safe temperature. The direct transfer path includes an annular disc that supports the rear of the motor and also reinforces the interior of the shell-like body of the vehicle; further reinforcement being provided by the fit of the battery in the vehicle. The nose cone is welded to a standard pipe and a rear dome is removably mounted and sealed to the other end of the pipe by a stretchable elastic band. A spring clip is utilized to retain the internal operating assembly together for ease of assembly and disassembly. Control grips for the vehicle provide an open grip by the diver and distribute the bulk of the pulling force across the length of the second and third sections of the diver''s fingers and by friction to the full length and width of the palm.
Inventors
- 👤 G Peroni
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 14:52
CPC Classifications
A; A63; A63B; A63B35/00; A63B35/08; A63B35/12; A63B2225/00; A63B2225/30; B; B63; B63C; B63C11/00; B63C11/02; B63C2011/028
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
230 words
An underwater device comprising in combination a tubular shell-like body forming a sealed enclosure to protect the contents from the water, means forming a part of the contents in the interior of the body for generating gaseous pressure greater than the fluid pressure of the water, said body including a removable dome fitting on one end, and means for attaching and sealing said dome including an elastic band stretchably spanning the interconnection between said dome and the remainder of said body, at least one portion of the width of said band being sufficiently resilient to be repeatedly separable from the corresponding part of said body by pulling said band back onto the other portion thereof to allow removal of said dome and access to the interior of said body, said one portion of said band being free for readily pullin back onto said other portion for easy access to the interior, the attaching and sealing of said dome being performed solely by the elastic engagement of said portion with said corresponding part of said body and substantially without loss of efficiency after repeated separations, the sealing efficiency of the band seal being increased as the exterior pressure of said water is increased, a breather passageway underlying and sealed by said elastic band, said passageway allowing release of fluid pressure by bubbling from the interior of said device to said water.
Claim 2
Dependent Claim
230 words
An underwater device comprising in combination a tubular shell-like body forming a sealed enclosure to protect the contents from the water, means forming a part of the contents in the interior of the body for generating gaseous pressure greater than the fluid pressure of the water, said body including a removable dome fitting on one end, and means for attaching and sealing said dome including an elastic band stretchably spanning the interconnection between said dome and the remainder of said body, at least one portion of the width of said band being sufficiently resilient to be repeatedly separable from the corresponding part of said body by pulling said band back onto the other portion thereof to allow removal of said dome and access to the interior of said body, said one portion of said band being free for readily pullin back onto said other portion for easy access to the interior, the attaching and sealing of said dome being performed solely by the elastic engagement of said portion with said corresponding part of said body and substantially without loss of efficiency after repeated separations, the sealing efficiency of the band seal being increased as the exterior pressure of said water is increased, a breather passageway underlying and sealed by said elastic band, said passageway allowing release of fluid pressure by bubbling from the interior of said device to said water.
Claim 3
Dependent Claim
37 words
The device of claim 1 wherein said passageway includes an aperture extending through the side wall of at least one portion of said body, said band extending over said aperture to close off the same for sealing.
Claim 4
Dependent Claim
21 words
The device of claim 2 wherein the underside of said band is smooth to provide sealing relationship across its full width.
References Cited (Backward Citations)
US2183049A
Cited
US2639833A
Cited
US3034467A
Cited
US3231078A
Cited
US3384113A
Cited
US3459217A
Cited
US3446383A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-02-04 | 1977-08-06 | 1978-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-04 | 1981-08-06 | 1982-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-04 | 1985-08-06 | 1986-02-05 | $7700.00 | Window Closed / Lapsed |