Patent US4547904A successfully refreshed from Google Patents.
US4547904A
Expired / Lapsed
US
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Survival suit
Assignee: Diving Unlimited International Inc
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Filing: 1982-11-12
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Granted: 1985-10-22
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Expires: 2002-11-12
Abstract
Abstract A wet type survival suit, particularly useful for oil rig workers or pilots and crew members stranded in water, includes an outer layer of material including a sheet of breathing material sandwiched between layers of fire protection material, a middle layer of insulation material that provides flotation, and an inner layer of fire protection material. This arrangement protects against fire, allows perspiration to evaporate, and allows the user to float in water. Suit adjusting laces are provided to adjust the suit to a comfortable configuration for the user. Zippers close the suit to a tight fit for use in water and can be loosened to reduce the restriction when desired.
Inventors
- 👤 Richard W. Long
- 👤 Robert T. Stinton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 04:36
CPC Classifications
A; A41; A41D; A41D13/00; A41D13/012; A41D13/02; A62; A62B; A62B17/00; A62B17/001; A62B17/005; B; B63; B63C; B63C9/00; B63C9/08; B63C9/087; B63C9/093; B64; B64D; B64D10/00; Y; Y10; Y10S; Y10S2/00; Y10S2/05
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
136 words
A survival suit for protecting the user from exposure to dangerous conditions including exposure in water, comprising: a suit including arm, leg and torso portions made of a material that passes water vapor and that does not pass liquid water; access means in the torso of said suit for facilitating donning and removal of the suit when open and for providing a water tight seal when closed; means for adjusting the arm and leg portions of said suit to fit snugly around the arms and legs of the user; and openings in the arm and leg portions of said suit for easing the restriction of the arms and legs of the user by the arm and leg portions of said suit and closable separately from the adjusting means by closure means for providing a watertight seal.
Claim 2
Dependent Claim
136 words
A survival suit for protecting the user from exposure to dangerous conditions including exposure in water, comprising: a suit including arm, leg and torso portions made of a material that passes water vapor and that does not pass liquid water; access means in the torso of said suit for facilitating donning and removal of the suit when open and for providing a water tight seal when closed; means for adjusting the arm and leg portions of said suit to fit snugly around the arms and legs of the user; and openings in the arm and leg portions of said suit for easing the restriction of the arms and legs of the user by the arm and leg portions of said suit and closable separately from the adjusting means by closure means for providing a watertight seal.
Claim 3
Dependent Claim
28 words
A survival suit material according to claim 1 wherein the suit includes dry destruct material that does not accumulate to form hot spots when subjected to high temperatures.
Claim 4
Dependent Claim
26 words
A survival suit according to claim 1 wherein the suit material includes a layer of insulation material that provides temperature insulation and flotation for the user.
Claim 5
Dependent Claim
18 words
A survival suit according to claim 1 wherein adjusting means is provided at the waist of said suit.
Claim 6
Dependent Claim
20 words
A survival suit according to claim 1 wherein adjusting and sealing means is provided at the neck of said suit.
Claim 7
Dependent Claim
21 words
A survival suit according to claim 1 wherein sealing means is provided at the wrist and ankle portions of said suit.
Claim 8
Dependent Claim
44 words
A survival suit according to claim 1 wherein the suit material includes a layer having a sheet of material that passes water vapor but that does not pass liquid water sandwiched between sheets of material, at least the inner sheet being dry destruct material.
Claim 9
Dependent Claim
18 words
A survival suit according to claim 7 wherein a sheet of insulating material is positioned beneath said layer.
Claim 10
Dependent Claim
22 words
A survival suit according to claim 8 wherein a sheet of dry destruct material is positioned beneath said sheet of insulating material.
Claim 11
Dependent Claim
149 words
A survival suit for protecting the user from exposure to dangerous conditions including exposure in water, comprising: an outer layer including a first sheet of a material that passes water vapor and that does not pass water, a sheet of a dry destruct material positioned beneath said first sheet, and a sheet of a protective material positioned on top of said first sheet; a middle layer of a temperature insulation and flotation material; an inner layer of a dry destruct material; access means in a torso of said suit for facilitating donning and removal of the suit when open and for providing a watertight seal when closed; adjusting means in said suit for adjusting said suit so that it fits snugly on the user; and openings in said suit for easing the restriction of the user by said suit and closable by closure means for providing a watertight seal.
Claim 12
Dependent Claim
149 words
A survival suit for protecting the user from exposure to dangerous conditions including exposure in water, comprising: an outer layer including a first sheet of a material that passes water vapor and that does not pass water, a sheet of a dry destruct material positioned beneath said first sheet, and a sheet of a protective material positioned on top of said first sheet; a middle layer of a temperature insulation and flotation material; an inner layer of a dry destruct material; access means in a torso of said suit for facilitating donning and removal of the suit when open and for providing a watertight seal when closed; adjusting means in said suit for adjusting said suit so that it fits snugly on the user; and openings in said suit for easing the restriction of the user by said suit and closable by closure means for providing a watertight seal.
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) | 1988-10-21 | 1989-04-22 | 1989-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-10-21 | 1993-04-22 | 1993-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-10-21 | 1997-04-22 | 1997-10-22 | $7700.00 | Window Closed / Lapsed |