US4423308A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermally controllable heating mattress
Assignee: Dreamwell Ltd
•
Filing: 1981-06-22
•
Granted: 1983-12-27
•
Expires: 2001-06-22
Abstract
Abstract A thermally controlled mattress construction including a mattress body designed to support a person lying on top thereof. A removable pillow top for the mattress body, removably fastened along the peripheral edges, incorporates a thermally controlled liner as an integral but removable part thereof. The liner is removably fastened to the bottom of the top surface by a fastener extending along the lower peripheral edge of the pillow top, and also the pillow top is removably fastened to the mattress body by a fastener extending along its peripheral edge. This arrangement provides for removal of the liner for repair of maintenance or other reasons. In one embodiment, the thermally controlled liner includes an electrical heater, which can incorporate two separately controllable heaters, one for each half side of the mattress. In a second embodiment, the thermally controlled liner includes therein an array of tubing, through which either heated or cooled fluid is pumped to selectively heat or cool the pillow top.
Inventors
- 👤 Milton A. Callaway
- 👤 Thomas F. Stutzman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:12
CPC Classifications
A; A47; A47C; A47C21/00; A47C21/04; A47C21/048; A47C21/042; A47C21/044; A47C27/00; A47C27/04; A47C27/06; A47C27/063; A47C27/064; H; H05; H05B; H05B3/00; H05B3/20; H05B3/34; H05B2203/00; H05B2203/002; H05B2203/007
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
123 words
A thermally controllable heating mattress construction, comprising: a. a mattress body designed to support a person lying on top thereof; b. a removable pillow top formed of a quilted mattress liner being supported on said mattress body, means for removably fastening said pillow top to said mattress body along the peripheral edges thereof; and c. a thermal control heating unit including an electrical heating pad liner generally in conformance with the surface of said pillow top, said heating pad liner being removably interposed between the pillow top and mattress body to allow the temperature of the top surface of the mattress to be selectively regulated; and fastener means for removably fastening said heating pad liner to the bottom of said removable pillow top.
Claim 2
Dependent Claim
123 words
A thermally controllable heating mattress construction, comprising: a. a mattress body designed to support a person lying on top thereof; b. a removable pillow top formed of a quilted mattress liner being supported on said mattress body, means for removably fastening said pillow top to said mattress body along the peripheral edges thereof; and c. a thermal control heating unit including an electrical heating pad liner generally in conformance with the surface of said pillow top, said heating pad liner being removably interposed between the pillow top and mattress body to allow the temperature of the top surface of the mattress to be selectively regulated; and fastener means for removably fastening said heating pad liner to the bottom of said removable pillow top.
Claim 3
Dependent Claim
32 words
A thermally controllable mattress construction as claimed in claim 1, said pillow top being removably fastened to said mattress body by a fastener extending around the peripheral edge of said mattress body.
Claim 4
Dependent Claim
35 words
A thermally controllable mattress construction as claimed in claim 2, said fastener means fastening said climate control unit to the bottom of said removable pillow top along the lower peripheral edge of said pillow top.
Claim 5
Dependent Claim
28 words
A thermally controllable mattress construction as claimed in claim 1, said electrical heating pad liner comprising two separately controllable heaters, one for each half side of the mattress.
Claim 6
Dependent Claim
52 words
A thermally controllable mattress construction as claimed in claim 1 or 2 or 4, said mattress body including two separable components, an outer peripheral section, and at least one central core unit, whereby different core units can be placed in said outer peripheral section to provide a desired type of mattress construction.
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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) | 1986-12-26 | 1987-06-27 | 1987-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-12-26 | 1991-06-27 | 1991-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-12-26 | 1995-06-27 | 1995-12-27 | $7700.00 | Window Closed / Lapsed |