Patent US4136402A successfully refreshed from Google Patents.
US4136402A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Suit with inner hood
Assignee: VIKING ASKIM AS
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Filing: 1977-09-08
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Granted: 1979-01-30
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Expires: 1997-09-08
Abstract
Abstract A protective suit -- for diving, gas protection and rescue work-- has a body of flexible elastically yieldable material and a head gear in the form of a flexible elastically yieldable hood having an inner and an outer wall which define therebetween a clearance for a layer of thermally insulating air.
Inventors
- 👤 Stig G. E. Insulan
- 👤 Jorn Stubdal
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:50
CPC Classifications
B; B63; B63C; B63C11/00; B63C11/02; B63C11/04
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
198 words
A unitary dry protective water and air impervious suit adapted to cover the entire body of a wearer except the hands and the face, comprising a body part having an upper portion sealingly surrounding the neck of a wearer and covering the body below the neck; said body part being inflatable to provide heat insulation between the body part of the suit and the body of the wearer; a hood having an opening for the wearer's face and being sealingly connected to said upper portion; said hood including in overlapping relationship a water and air impervious outer layer, and an inner layer, said layers being sealed to one another at said face opening to define with one another an inflatable clearance surrounding the head of the wearer; and means for communicating with the interior of said body part to provide heat insulation in form of a thermally insulating layer which surrounds the entire body of the wearer except for the face and hands; said suit further comprising a gas and water-proof zipper extending along a vertical centerline of said suit from the vicinity of said face openings rearwardly over said hoods and down the back of the suit.
Claim 2
Dependent Claim
198 words
A unitary dry protective water and air impervious suit adapted to cover the entire body of a wearer except the hands and the face, comprising a body part having an upper portion sealingly surrounding the neck of a wearer and covering the body below the neck; said body part being inflatable to provide heat insulation between the body part of the suit and the body of the wearer; a hood having an opening for the wearer's face and being sealingly connected to said upper portion; said hood including in overlapping relationship a water and air impervious outer layer, and an inner layer, said layers being sealed to one another at said face opening to define with one another an inflatable clearance surrounding the head of the wearer; and means for communicating with the interior of said body part to provide heat insulation in form of a thermally insulating layer which surrounds the entire body of the wearer except for the face and hands; said suit further comprising a gas and water-proof zipper extending along a vertical centerline of said suit from the vicinity of said face openings rearwardly over said hoods and down the back of the suit.
Claim 3
Dependent Claim
49 words
A protective suit as defined in claim 1, wherein said inner hood is of a material which is slightly permeable to air so as to permit some of the air from said layer to escape to the ears of a user and thereby prevent rupturing of the user's eardrums.
Claim 4
Dependent Claim
33 words
A protective suit as defined in claim 1, wherein said inner hood is made of air-impermeable material; and further comprising means for preventing rupturing of the eardrum of a user of the suit.
Claim 5
Dependent Claim
64 words
A protective suit as defined in claim 3, said means comprising a channel on said inner hood having an open end positioned to be located opposite an ear of a user who is wearing the suit, and another open end adapted to communicate with the face mask of the user so that air can travel from the mask to the ear of the user.
Claim 6
Dependent Claim
18 words
A protective suit as defined in claim 4, said means further comprising a one-way valve in said channel.
Claim 7
Dependent Claim
38 words
A protective suit as defined in claim 1, said zipper having an end located between substantially 10 - 50 mm rearwardly of said face openings, and another end located in the region of the waist of the suit.
Claim 8
Dependent Claim
14 words
A protective suit as defined in claim 1, said materials including textile-reinforced natural rubber.
Claim 9
Dependent Claim
14 words
A protective suit as defined in claim 1, said materials including textile-reinforced synthetic rubber.
Claim 10
Dependent Claim
15 words
A protective suit as defined in claim 1, said materials including textile-reinforced synthetic plastic material.
Claim 11
Dependent Claim
13 words
A protective suit as defined in claim 1, said materials including natural rubber.
Claim 12
Dependent Claim
13 words
A protective suit as defined in claim 1, said materials including synthetic rubber.
Claim 13
Dependent Claim
14 words
A protective suit as defined in claim 1, said materials including synthetic plastic material.
Claim 14
Dependent Claim
14 words
A protective suit as defined in claim 1, said materials including expanded elastomeric material.
Claim 15
Dependent Claim
14 words
A protective suit as defined in claim 1, said materials including non-expanded elastomeric material.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-01-29 | 1982-07-31 | 1983-01-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-01-29 | 1986-07-31 | 1987-01-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-01-29 | 1990-07-31 | 1991-01-30 | $7700.00 | Window Closed / Lapsed |