Patent US3730178A successfully refreshed from Google Patents.
US3730178A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Deep-sea dive suit and life support system
Assignee: Individual
•
Filing: 1971-09-22
•
Granted: 1973-05-01
•
Expires: 1991-09-22
Abstract
Abstract Present invention relates to a deep-sea dive suit and self contained underwater breathing and heating apparatus therefor. The improved suit is laminated in six layers which form a passageway for the circulation of an oxygen-gas mixture that transmits heat from the warmer parts of the body to its extremities. The oxygen-gas mixture is generated from a supply of a cryogenic oxygen containing liquid stored in a back pack reservoir. The cryogenic liquid is heated, converted to a gas, circulated through the suit and finally conditioned for breathing by the diver.
Inventors
- 👤 F Moreland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:40
CPC Classifications
B; B63; B63C; B63C11/00; B63C11/02; B63C11/28; B63C11/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
353 words
A deep-sea dive suit comprising: a first innermost layer made from a thermal weave material; intermediate second and third layers constructed to form a channel adapted to circulate a warmed fluid therethrough, said channel being divided into separate compartments including eight warm trunk area compartments which comprise a center chest and upper back area, a right chest and back area, a left chest and back area, a right stomach and back area, a left stomach and back area, a right hip area, a left hip area, and a groin and lower back area, and five cold extremity area compartments which comprise a head and upper neck area, a right arm and hand area, a left arm and hand area, a right leg and foot area, and a left leg and foot area; a plurality of flexible fluid conduits interconnecting individual warm compartment areas of said suit with individual cold compartment areas thereof, said flexible conduits include at least a pair of fluid discharge conduits and a pair of fluid return conduits communicating between each of said eight warm trunk area compartments and one of said cold extremity area compartments; a fourth external layer made from an insulating material; cryogenic means adapted to be positioned and carried on the diver''s back and for supplying a heated gas for circulation through the warm and cold extremity areas of said suit, said cryogenic means including an insulated storage cylinder having a cryogenic high pressure liquid measure disposed therein, means for heating and vaporizing said liquid mixture, a distribution manifold connected between said heating means and each of the warm compartment areas, and outlet conduits communicating with each of the cold compartment areas for releasing the warm circulating gas to the ambient sea, said cryogenic means also including a gas conditioning and mixing cylinder, an outlet manifold receiving and circulating gas from the outlet conduits and introducing said gas into the mixing cylinder where it is conditioned to the appropriate gas mixture for breathing by the diver; and a breathing tube connecting to the mixing cylinder for carrying said conditioned gas mixture to the diver for breathing.
Claim 2
Dependent Claim
353 words
A deep-sea dive suit comprising: a first innermost layer made from a thermal weave material; intermediate second and third layers constructed to form a channel adapted to circulate a warmed fluid therethrough, said channel being divided into separate compartments including eight warm trunk area compartments which comprise a center chest and upper back area, a right chest and back area, a left chest and back area, a right stomach and back area, a left stomach and back area, a right hip area, a left hip area, and a groin and lower back area, and five cold extremity area compartments which comprise a head and upper neck area, a right arm and hand area, a left arm and hand area, a right leg and foot area, and a left leg and foot area; a plurality of flexible fluid conduits interconnecting individual warm compartment areas of said suit with individual cold compartment areas thereof, said flexible conduits include at least a pair of fluid discharge conduits and a pair of fluid return conduits communicating between each of said eight warm trunk area compartments and one of said cold extremity area compartments; a fourth external layer made from an insulating material; cryogenic means adapted to be positioned and carried on the diver''s back and for supplying a heated gas for circulation through the warm and cold extremity areas of said suit, said cryogenic means including an insulated storage cylinder having a cryogenic high pressure liquid measure disposed therein, means for heating and vaporizing said liquid mixture, a distribution manifold connected between said heating means and each of the warm compartment areas, and outlet conduits communicating with each of the cold compartment areas for releasing the warm circulating gas to the ambient sea, said cryogenic means also including a gas conditioning and mixing cylinder, an outlet manifold receiving and circulating gas from the outlet conduits and introducing said gas into the mixing cylinder where it is conditioned to the appropriate gas mixture for breathing by the diver; and a breathing tube connecting to the mixing cylinder for carrying said conditioned gas mixture to the diver for breathing.
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) | 1976-04-30 | 1976-10-30 | 1977-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-30 | 1980-10-30 | 1981-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-30 | 1984-10-30 | 1985-05-01 | $7700.00 | Window Closed / Lapsed |