Patent US3675244A successfully refreshed from Google Patents.
US3675244A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-compensating thermal insulation garments
Assignee: Sanders Nuclear Corp
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Filing: 1970-05-18
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Granted: 1972-07-11
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Expires: 1990-05-18
Abstract
Abstract Self-compensating thermal insulating garments are found useful for protecting the body of a user from hostile temperature environments. The garments each comprise a plurality of compartments with each compartment having a heat insulating core of a flexible porous material. Outer and inner continuous resilient sheets span the compartments and preferably seal the cores against unwanted passage of gas and liquid in conjunction with barrier means for each compartment which form gas and water barriers. Preferably tubular means pass into and through the cores to deliver a gas at a predetermined pressure to maintain each of the compartments at predetermined internal pressures preventing compression of the compartments due to pressure differentials.
Inventors
- 👤 Kenneth E Mayo
- 👤 Eugene K Parker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:27
CPC Classifications
B; B63; B63C; B63C11/00; B63C11/02; B63C11/28; B63C11/04
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
152 words
A self-compensating thermal insulation garment useful for protecting the body of a user from hostile temperature environments, said garment being constructed and arranged to conform to the contours of a body with which it is to be used, said garment comprising a plurality of compartments, each of said compartments comprising a heat insulating core of a flexible porous material having outer and inner surfaces and barrier means forming gas and water barriers and defining sides of said compartments, outer and inner continuous resilient sheets spanning said compartments and sealing said outer and inner surfaces against unwanted passage of gas and liquid, gas pressure relief means for removing gas from said compartments when over pressure conditions exist, and conduit means passing into and through said cores to deliver a gas at predetermined pressures thereby maintaining each of said compartments at predetermined pressures preventing compression of said compartments due to environmental pressure suit constructed
Claim 2
Dependent Claim
152 words
A self-compensating thermal insulation garment useful for protecting the body of a user from hostile temperature environments, said garment being constructed and arranged to conform to the contours of a body with which it is to be used, said garment comprising a plurality of compartments, each of said compartments comprising a heat insulating core of a flexible porous material having outer and inner surfaces and barrier means forming gas and water barriers and defining sides of said compartments, outer and inner continuous resilient sheets spanning said compartments and sealing said outer and inner surfaces against unwanted passage of gas and liquid, gas pressure relief means for removing gas from said compartments when over pressure conditions exist, and conduit means passing into and through said cores to deliver a gas at predetermined pressures thereby maintaining each of said compartments at predetermined pressures preventing compression of said compartments due to environmental pressure suit constructed
Claim 3
Dependent Claim
22 words
A self-compensating thermal insulating garment in accordance with claim 1 wherein said porous flexible material is a resilient organic, open cell foam.
Claim 4
Dependent Claim
47 words
A self-compensating thermal insulating garment in accordance with claim 2 wherein said conduit means comprises a flexible gas tube interconnecting at least two of said compartments, said gas tube defining gas inlet means for passing gas to said compartments and preventing backflow of liquids from said compartments.
Claim 5
Dependent Claim
27 words
A self-compensating thermal insulating garment in accordance with claim 3 wherein said gas pressure relief means comprises a plurality of pinholes in said outer continuous resilient sheet.
Claim 6
Dependent Claim
32 words
A self-compensating thermal insulating garment in accordance with claim 4 and further comprising an automatic ambient gas pressure regulator interconnected with said conduit means, and gas supply means interconnected with said regulator.
Claim 7
Dependent Claim
29 words
A self-compensating thermal insulating garment in accordance with claim 1 and further comprising means for passing exhaust gas to the diver to said compartments interconnected with said conduit means.
Claim 8
Dependent Claim
43 words
A self-compensating thermal insulating garment in accordance with claim 1 and further comprising with means for passing gas to saId compartments from a breathing pressure regulator used in conjunction with said garment by a diver, said means being interconnected with said conduit means.
Claim 9
Dependent Claim
110 words
A thermal insulation garment useful for protecting the body of a user from hostile temperature environments under varying environmental pressure and temperature conditions, said garment being constructed and arranged to conform to the contours of a body with which it is used, said garment comprising a plurality of individual compartments, each of said compartments comprising a resilient organic foam core and a fluid and gas impervious barrier layer surrounding each core, means for increasing gas pressure in said foam of said compartments in response to increasing pressure exerted on said compartments, and means for releasing gas pressure in said compartments in response to lowering of environmental pressure on said compartments.
Claim 10
Dependent Claim
110 words
A thermal insulation garment useful for protecting the body of a user from hostile temperature environments under varying environmental pressure and temperature conditions, said garment being constructed and arranged to conform to the contours of a body with which it is used, said garment comprising a plurality of individual compartments, each of said compartments comprising a resilient organic foam core and a fluid and gas impervious barrier layer surrounding each core, means for increasing gas pressure in said foam of said compartments in response to increasing pressure exerted on said compartments, and means for releasing gas pressure in said compartments in response to lowering of environmental pressure on said compartments.
Claim 11
Dependent Claim
23 words
A thermal insulation garment in accordance with claim 8 wherein said means for increasing gas pressure comprises a tube passing between said compartments.
Claim 12
Dependent Claim
32 words
A thermal insulation garment in accordance with claim 9 wherein said tube defines means for permitting gas flow into said compartments and means for preventing unwanted backflow of fluids to said tube.
Claim 13
Dependent Claim
24 words
A thermal insulation garment in accordance with claim 8 wherein said means for releasing gas pressure comprises a plurality of pinholes in said compartments.
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) | 1975-07-11 | 1976-01-10 | 1976-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-11 | 1980-01-10 | 1980-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-11 | 1984-01-10 | 1984-07-11 | $7700.00 | Window Closed / Lapsed |