US4172495A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Slurry cooling of helmets
Assignee: ENERGY SYSTEMS CORP
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Filing: 1977-08-03
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Granted: 1979-10-30
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Expires: 1997-08-03
Abstract
Abstract The invention relates to a slurry-cooled helmet and to a head-cooling system. The helmet includes a hollow shell within which is positioned a plurality of tubes connected between an inlet and a discharge manifold. The manifolds are respectively connected to inlet and outlet means in the helmet shell.
Inventors
- 👤 William H. Zebuhr
- 👤 Kenneth E. Mayo
- 👤 Charles R. Fink
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 06:43
CPC Classifications
A; A42; A42B; A42B3/00; A42B3/04; A42B3/28; A42B3/285; A63; A63B; A63B2102/00; A63B2102/24; A63B2230/00; A63B2230/50; A63B2243/00; A63B2243/0066; Y; Y10; Y10S; Y10S165/00; Y10S165/044; Y10S165/045
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
171 words
A frozen packed helmet comprising: a hollow shell including an inner wall contoured generally to be mounted on the head of a person; a plurality of tubes, positioned within said shell so as to extend substantially parallel to each other through a substantial portion thereof; an inlet manifold positioned within said shell connected to one end of each of said tubes; a discharge manifold positioned within said shell connected to the other end of each of said tubes; inlet and outlet means carried by said shell connected respectively with said inlet and discharge manifolds for selectively admitting a coolant slurry comprising frozen solids and a liquid carrier to said helmet and for withdrawing liquid therefrom; filter means provided adjacent the connection between each of said tubes and said discharge manifold for preventing the discharge of frozen solids together with liquid whereby said tubes may be filled with said frozen solids initially void of the liquid carrier, and means for closing said inlet and outlet means to trap said frozen solids therein.
Claim 2
Dependent Claim
171 words
A frozen packed helmet comprising: a hollow shell including an inner wall contoured generally to be mounted on the head of a person; a plurality of tubes, positioned within said shell so as to extend substantially parallel to each other through a substantial portion thereof; an inlet manifold positioned within said shell connected to one end of each of said tubes; a discharge manifold positioned within said shell connected to the other end of each of said tubes; inlet and outlet means carried by said shell connected respectively with said inlet and discharge manifolds for selectively admitting a coolant slurry comprising frozen solids and a liquid carrier to said helmet and for withdrawing liquid therefrom; filter means provided adjacent the connection between each of said tubes and said discharge manifold for preventing the discharge of frozen solids together with liquid whereby said tubes may be filled with said frozen solids initially void of the liquid carrier, and means for closing said inlet and outlet means to trap said frozen solids therein.
Claim 3
Dependent Claim
20 words
The helmet according to claim 1, wherein said filter means comprises a filter screen positioned across all of said tubes.
Claim 4
Dependent Claim
34 words
The helmet according to claim 1, wherein said inlet and discharge manifolds are positioned so as to extend generally transversely of said shell and said tubes connected therebetween extend generally longitudinally of said shell.
Claim 5
Dependent Claim
18 words
The helmet according to claim 1, wherein said tubes and said manifolds are formed of a flexible material.
Claim 6
Dependent Claim
34 words
The helmet according to claim 1, wherein an impact absorbing material is positioned within said shell so as to occupy at least the space between said tubes and manifolds and the exterior wall thereof.
Claim 7
Dependent Claim
15 words
The helmet according to claim 5, wherein said impact absorbing material is a foam material.
Claim 8
Dependent Claim
12 words
The helmet according to claim 6, wherein said foam material is polystyrofoam.
Claim 9
Dependent Claim
24 words
The helmet according to claim 5, wherein the region within said shell adjacent said inner wall thereof is free of said impact absorbing material.
Claim 10
Dependent Claim
39 words
The helmet according to claim 1, wherein said inlet and discharge manifolds are connected at one end thereof, the other ends of said inlet and discharge manifolds being respectively connected to said inlet and outlet means of the shell.
Claim 11
Dependent Claim
171 words
A head-cooling system comprising: a helmet having a hollow shell and including an inner wall contoured generally to be mounted on the head of a person; a plurality of tubes positioned within said shell so as to extend substantially parallel to each other through a substantial portion thereof; an inlet manifold positioned within said shell connected to one end of each of said tubes; a discharge manifold positioned within said shell connected to the other end of each of said tubes; inlet and outlet means carried by said shell connected respectively with said inlet and discharge manifolds; means for producing a slurry of frozen solids and means for transporting said slurry to the inlet means of said helmet shell and for withdrawing liquid substantially free of frozen solids from the outlet means of said helmet shell and for returning said liquid to said slurry-producing means; and, filter means provided adjacent the connection between each of said tubes and said discharge manifold for preventing the discharge of frozen solids together with liquid.
Claim 12
Dependent Claim
171 words
A head-cooling system comprising: a helmet having a hollow shell and including an inner wall contoured generally to be mounted on the head of a person; a plurality of tubes positioned within said shell so as to extend substantially parallel to each other through a substantial portion thereof; an inlet manifold positioned within said shell connected to one end of each of said tubes; a discharge manifold positioned within said shell connected to the other end of each of said tubes; inlet and outlet means carried by said shell connected respectively with said inlet and discharge manifolds; means for producing a slurry of frozen solids and means for transporting said slurry to the inlet means of said helmet shell and for withdrawing liquid substantially free of frozen solids from the outlet means of said helmet shell and for returning said liquid to said slurry-producing means; and, filter means provided adjacent the connection between each of said tubes and said discharge manifold for preventing the discharge of frozen solids together with liquid.
Claim 13
Dependent Claim
37 words
The head-cooling system according to claim 10, wherein said slurry-producing means comprises means for generating frozen particles from a liquid and for maintaining the thus produced slurry at a temperature approximating the freezing temperature for the liquid.
Claim 14
Dependent Claim
79 words
The head-cooling system according to claim 10, including pump means connected to said slurry-producing means so as to pump a slurry of frozen solids therefrom and to pump liquid substantially free of frozen solids thereto, said pump means being adapted to be connected to the inlet and outlet means of said helmet shell so as to feed a slurry of frozen solids to said inlet means and to withdraw liquid substantially free of frozen solids from said outlet means.
Claim 15
Dependent Claim
22 words
The head-cooling system according to claim 10, wherein said slurry-producing means is adapted to produce a slurry of ice particles in water.
Claim 16
Dependent Claim
21 words
The head-cooling system according to claim 10, wherein said filter means comprises a filter screen positioned across all of said tubes.
Claim 17
Dependent Claim
35 words
The head-cooling system according to claim 10, wherein said inlet and discharge manifolds are positioned so as to extend generally transversely of said shell and said tubes connected therebetween extend generally longitudinally of said shell.
Claim 18
Dependent Claim
19 words
The head-cooling system according to claim 10, wherein said tubes and said manifolds are formed of a flexible material.
Claim 19
Dependent Claim
35 words
The head-cooling system according to claim 10, wherein an impact absorbing material is positioned within said shell so as to occupy at least the space between said tubes and manifolds and the exterior wall thereof.
Claim 20
Dependent Claim
16 words
The head-cooling system according to claim 17, wherein said impact absorbing material is a foam material.
Claim 21
Dependent Claim
13 words
The head-cooling system according to claim 18, wherein said foam material is polystyrofoam.
Claim 22
Dependent Claim
25 words
The head-cooling system according to claim 17, wherein the region within said shell adjacent said inner wall thereof is free of said impact absorbing material.
Claim 23
Dependent Claim
40 words
The head-cooling system according to claim 10, wherein said inlet and discharge manifolds are connected at one end thereof, the other ends of said inlet and discharge manifolds being respectively connected to said inlet and outlet means of the shell.
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) | 1982-10-29 | 1983-04-30 | 1983-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-10-29 | 1987-04-30 | 1987-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-10-29 | 1991-04-30 | 1991-10-30 | $7700.00 | Window Closed / Lapsed |