US4023223A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Protective clothing
Assignee: COSALT Ltd
•
Filing: 1976-03-29
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Granted: 1977-05-17
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Expires: 1996-03-29
Abstract
Abstract An emergency overall suit, for protection of a person against exposure in water comprises a single garment with inner and outer layers, water-excluding seals at the ankle, wrist and neck portions and small vents at the extremities of the legs and arms of the suit to admit air and water to the space between the layers.
Inventors
- 👤 Alexander Adam Anderson
- 👤 Douglas Martin Gallacher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:11
CPC Classifications
B; B63; B63C; B63C9/00; B63C9/08; B63C9/087; A; A41; A41D; A41D13/00; A41D13/012; A41D13/0125; A41D13/02; A41D2200/00; A41D2200/20
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
157 words
An emergency overall suit comprising a single garment having a trunk portion, with an access opening closed by a watertight fastening, a hood, legs and arms, the suit being of textile material in two layers, respectively an inner heat-insulating layer and an outer waterproof layer, the suit also comprising the following features in combination: a. the inner layer and outer layer are intersecured, by seams at the ankles, wrists, neck and access opening, but their opposed inside surfaces are otherwise separable to provide between them an air space; b. at each ankle and wrist and at the neck there is an inner encircling sealing band and means to hold the sealing band comfortably tight around the body of the wearer; and c. at each extremity of the legs and arms of the suit, small vents are provided to allow for admission of air and water to the space between the inner and outer layers of the suit.
Claim 2
Dependent Claim
157 words
An emergency overall suit comprising a single garment having a trunk portion, with an access opening closed by a watertight fastening, a hood, legs and arms, the suit being of textile material in two layers, respectively an inner heat-insulating layer and an outer waterproof layer, the suit also comprising the following features in combination: a. the inner layer and outer layer are intersecured, by seams at the ankles, wrists, neck and access opening, but their opposed inside surfaces are otherwise separable to provide between them an air space; b. at each ankle and wrist and at the neck there is an inner encircling sealing band and means to hold the sealing band comfortably tight around the body of the wearer; and c. at each extremity of the legs and arms of the suit, small vents are provided to allow for admission of air and water to the space between the inner and outer layers of the suit.
Claim 3
Dependent Claim
30 words
An emergency overall suit according to claim 1, in which the inner layer is made heat-reflective, by a metallised inner surface, and is substantially waterproof but slowly permeable by air.
Claim 4
Dependent Claim
27 words
An emergency overall suit according to claim 2, in which mitts are attached to the wrist portions of the suit and have hand-access openings with closing means.
Claim 5
Dependent Claim
33 words
An emergency overall suit according to claim 3, in which the sealing bands are of resilient, closed-cell, foam material and the means for holding them tight comprise outer constricting straps with face-to-face fasteners.
Claim 6
Dependent Claim
58 words
An emergency overall suit according to claim 1, in which in-built buoyancy is provided by an inter-lining of buoyant but non-absorbent sheet material between the inner and outer layers of the suit over the area of the upper part of the trunk, in the chest, over the shoulders and around the back of the neck of the suit.
Claim 7
Dependent Claim
27 words
An emergency overall suit according to claim 1, in which mitts are attached to the wrist portions of the suit and have hand-access openings with closing means.
Claim 8
Dependent Claim
33 words
An emergency overall suit according to claim 1, in which the sealing bands are of resilient, closed-cell, foam material and the means for holding them tight comprise outer constricting straps with face-to-face fasteners.
Claim 9
Dependent Claim
52 words
An emergency overall suit according to claim 7, in which in-built buoyancy is provided by an inter-lining of buoyant but non-absorbent sheet material between the inner and outer layers over the area of the upper part of the trunk, in the chest, over the shoulders and around the back of the neck.
References Cited (Backward Citations)
US1271017A
Cited
US2181159A
Cited
US2305605A
Cited
US2543317A
Cited
US2655663A
Cited
DE1948360A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-05-16 | 1980-11-15 | 1981-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-05-16 | 1984-11-15 | 1985-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-05-16 | 1988-11-15 | 1989-05-17 | $7700.00 | Window Closed / Lapsed |