Patent US5202703A successfully refreshed from Google Patents.
Patent US4325151A successfully refreshed from Google Patents.
US4325151A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cooling pillow with heat dissipator
Assignee: Individual
•
Filing: 1980-03-12
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Granted: 1982-04-20
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Expires: 2000-03-12
Abstract
Abstract Cooling pillow with heat dissipator comprising a head-resting surface which is temperature maintained by thermally transferring heat released by the user to and through a heat conducting metal plate in contact with a wet absorbent medium receiving water from a water tank in a ventilated enclosure.
Inventors
- 👤 An C. Wu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 09:02
CPC Classifications
A; A47; A47G; A47G9/00; A47G9/10; A47G9/1036; A61; A61F; A61F7/00; A61F2007/0001; A61F2007/0002; A61F7/02; A61F2007/0244; A61F2007/0246; A61F2007/026
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
109 words
A cooling pillow with heat dissipator essentially including an upper cushion in the form of an elastic envelope and lower heat dissipator, said heat dissipator comprising a metal plate of good thermal conductivity, an absorbent fabric lamina in contact with and beneath said plate, a cooling means communicating with said absorbent fabric including a water tank and a cover therefor and a plurality of open-endedtubes containing absorbent material, said tubes extending above, through, and below said cover, the top of the absorbent material in said tubes being in contact with said absorbent fabric which contacts said plate and the lower ends of said tubes extending into said water tank.
Claim 2
Dependent Claim
109 words
A cooling pillow with heat dissipator essentially including an upper cushion in the form of an elastic envelope and lower heat dissipator, said heat dissipator comprising a metal plate of good thermal conductivity, an absorbent fabric lamina in contact with and beneath said plate, a cooling means communicating with said absorbent fabric including a water tank and a cover therefor and a plurality of open-endedtubes containing absorbent material, said tubes extending above, through, and below said cover, the top of the absorbent material in said tubes being in contact with said absorbent fabric which contacts said plate and the lower ends of said tubes extending into said water tank.
Claim 3
Dependent Claim
19 words
A cooling pillow in accordance with claim 1 wherein the envelope of the upper cushion is made of rubber.
Claim 4
Dependent Claim
19 words
A cooling pillow in accordance with claim 1 or 2, wherein the plate of good thermal conductivity is aluminum.
Claim 5
Dependent Claim
32 words
A cooling pillow in accordance with claim 1 or 2, wherein the top of the upper cushion is formed with an undulated area on which the head of the user may rest.
Claim 6
Dependent Claim
50 words
A cooling pillow in accordance with claim 1 wherein the plate of good thermal conductivity is of aluminum and the lower ends of said tubes are fitted with springs to urge and maintain the upper tips of the absorbent material in the tubes into contact with said absorbent fabric lamina.
Claim 7
Dependent Claim
20 words
A cooling pillow in accordance with claim 1 or 5, wherein said cooling means is enclosed within a ventilated housing.
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) | 1985-04-19 | 1985-10-19 | 1986-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-04-19 | 1989-10-19 | 1990-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-04-19 | 1993-10-19 | 1994-04-20 | $7700.00 | Window Closed / Lapsed |