US3802215A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cooling means for workmen
Assignee: Individual
•
Filing: 1972-10-11
•
Granted: 1974-04-09
•
Expires: 1992-10-11
Abstract
Abstract An article adapted to be releasably fixed around a human torso, the article having pockets formed therein between inner and outer layers of heat insulating material to receive solid, volatile, expendable refrigerant, means being provided for directing gases liberated by sublimation of the said refrigerant from within each pocket to the exterior of the article on the side thereof containing the inner insulating material and consequently to the body of the wearer.
Inventors
- 👤 A Rowe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:32
CPC Classifications
A; A41; A41D; A41D13/00; A41D13/002; A41D13/005; A41D13/0053; A41D13/0055; F; F25; F25D; F25D3/00; F25D3/12; F25D3/14; F25D2400/00; F25D2400/26
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
98 words
An article adapted to be releasably fixed around a human torso, said article comprising: an inner layer of heat insulating material covered by an outer layer of heat insulating material, said layers forming pockets for receiving solid, volatile, expendable refrigerant material, adjustable straps attached to said pockets for fitting the article around a human torso and thereby regulating the cooling effect of the article; and means for directing gases liberated by sublimation of the refrigerant material from within each pocket to the exterior of each pocket on the side of each pocket adapted to face the human torso.
Claim 2
Dependent Claim
98 words
An article adapted to be releasably fixed around a human torso, said article comprising: an inner layer of heat insulating material covered by an outer layer of heat insulating material, said layers forming pockets for receiving solid, volatile, expendable refrigerant material, adjustable straps attached to said pockets for fitting the article around a human torso and thereby regulating the cooling effect of the article; and means for directing gases liberated by sublimation of the refrigerant material from within each pocket to the exterior of each pocket on the side of each pocket adapted to face the human torso.
Claim 3
Dependent Claim
17 words
An article as claimed in claim 1 in which the layers of insulating material are impervious material.
Claim 4
Dependent Claim
21 words
An article as claimed in claim 1 in which the layers of insulating material are porous and covered with impervious material.
Claim 5
Dependent Claim
20 words
An article as claimed in claim 1 in which the inner layer has lower insulation properties than the outer layer.
Claim 6
Dependent Claim
58 words
An article as claimed in claim 1 in which the said layers of insulating material are formed From a single mat folded substantially about its longitudinal center line, the pockets being formed adjacent one another along the length of the article by the layers being joined together at spaced intervals in directions transverse to the said center line.
Claim 7
Dependent Claim
52 words
An article as claimed in claim 1 in which each pocket is open at one end thereof with the said means comprising a flap joined to the outer layer and adapted to be folded over the open end of each pocket to overlie the inner layer for a portion of its height.
Claim 8
Dependent Claim
24 words
An article as claimed in claim 1 in which the said means is embodied in the inner layer by virtue of it being permeable.
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) | 1977-04-08 | 1977-10-08 | 1978-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-04-08 | 1981-10-08 | 1982-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-04-08 | 1985-10-08 | 1986-04-09 | $7700.00 | Window Closed / Lapsed |