US4253313A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Procedures and apparatus for the conditioning and protection of workmen in hot environments
Assignee: Individual
•
Filing: 1978-11-29
•
Granted: 1981-03-03
•
Expires: 1998-11-29
Abstract
Abstract Apparatus for cooling a workman in thermally stressful conditions comprises a pocket for containing ice that cools the workman by conduction. When the ice melts, the water is led on to the skin of the workman where it cools him further when the water evaporates.
Inventors
- 👤 Alexander W. Rowe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 10:37
CPC Classifications
A; A41; A41D; A41D13/00; A41D13/002; A41D13/005; A41D13/0053; A41D13/0055; A62; A62B; A62B17/00; A62B17/005; F; F25; F25D; F25D3/00; F25D3/02; F25D3/06; F25D3/08; F25D2400/00; F25D2400/26
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
119 words
Cooling apparatus for workmen working in thermally stressful conditions comprising: (a) a pocket containg ice and having a front portion, a rear portion which is adjacent to the body of the wearer, side portions and upper and lower portions, each of said portions having an inner face within the pocket and outer faces outside the pocket, (b) insulating material forming a major part of at least the rear portion of the pocket, (c) water impervious material lining the inner faces of the said front, rear, side and lower portions and protecting the insulating material from contact with the content of the pocket, and (d) water conduit means guiding water through the pocket on to the body of the wearer.
Claim 2
Dependent Claim
119 words
Cooling apparatus for workmen working in thermally stressful conditions comprising: (a) a pocket containg ice and having a front portion, a rear portion which is adjacent to the body of the wearer, side portions and upper and lower portions, each of said portions having an inner face within the pocket and outer faces outside the pocket, (b) insulating material forming a major part of at least the rear portion of the pocket, (c) water impervious material lining the inner faces of the said front, rear, side and lower portions and protecting the insulating material from contact with the content of the pocket, and (d) water conduit means guiding water through the pocket on to the body of the wearer.
Claim 3
Dependent Claim
40 words
Apparatus as claimed in claim 1 further comprising insulating material forming parts of the front and side portions of the pocket, which insulating material is protected from contact with the content of the pocket by the said water impervious material.
Claim 4
Dependent Claim
34 words
Apparatus as claimed in claim 2 wherein the insulating material forming part of the rear portion of the pocket provides greater heat transfer therethrough than the insulating material forming parts of the other portions.
Claim 5
Dependent Claim
22 words
Apparatus as claimed in claim 2 further comprising insulating material forming parts of the said upper and lower portions of the pocket.
Claim 6
Dependent Claim
23 words
Apparatus as claimed in claim 1 wherein the said water conduit means comprises tube means passing through the rear portion of the pocket.
Claim 7
Dependent Claim
13 words
Apparatus as claimed in claim 5 wherein the tube means follow tortuous paths.
Claim 8
Dependent Claim
23 words
Apparatus as claimed in claim 1 wherein the said water conduit means comprises tube means passing through the lower portion of the pocket.
Claim 9
Dependent Claim
29 words
Apparatus as claimed in claim 1 wherein the said water conduit means comprises a window of water pervious material forming a part of the rear portion of the pocket.
Claim 10
Dependent Claim
16 words
Apparatus as claimed in claim 8 wherein the water pervious means comprises an open celled foam.
Claim 11
Dependent Claim
32 words
Apparatus as claimed in claim 1 wherein the said water conduit means is located above the lower portion of the pocket so that a pool of water is contained within the pocket.
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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) | 1984-03-02 | 1984-09-01 | 1985-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-03-02 | 1988-09-01 | 1989-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-03-02 | 1992-09-01 | 1993-03-03 | $7700.00 | Window Closed / Lapsed |