Patent US1802667A successfully refreshed from Google Patents.
US4411252A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wall protector and heat circulator
Assignee: Individual
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Filing: 1981-12-03
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Granted: 1983-10-25
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Expires: 2001-12-03
Abstract
Abstract The present invention comprises a linear element having openings in the upper surface, and which is closed at one end by a cap and at the other end by a fan unit which draws air from the room and projects it upwardly through the openings in the linear unit. The device is placed between the free-standing heating unit and the adjacent vertical surfaces to prevent the vertical surfaces from becoming too hot, as well as to prevent the subsequent drying out of wood framing behind the vertical surfaces, and also preventing or substantially reducing any chances of spontaneous combustion behind the vertical surfaces.
Inventors
- 👤 Berland M. Funkhouser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 08:30
CPC Classifications
F; F24; F24C; F24C15/00; F24C15/006; F24B; F24B13/00; F24B13/002; F24C15/36
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
213 words
A device for placement between a free-standing heating unit and a vertical surface to prevent overheating of the vertical surface by the radiation of heat from the heating unit comprising an elongated tubular element mounted on support means and having one end closed, the other end being open; a fan assembly operatively connected with said other end of said tubular element to introduce a controlled flow of air into the interior said tube and discharged from said tube through at least two circumferentially spaced apart openings on the upper surface of said tube, one of said at least two openings being so positioned on said upper surface as to direct air passing therethrough from the interior of said tubular element in the direction of the vertical surface, the other side of said at least two openings being so positioned on said upper surface as to direct air passing therethrough from interior of said tubular element toward the adjacent heating unit surface; a temperature sensitive control assembly operatively associated with said fan assembly and activated by the temperature of the air heated by the heating unit; first electrical conduit means interconnecting said control assembly and said fan assembly and second electrical conduit means interconnecting said control assembly with a conventional source of electrical power.
Claim 2
Independent Claim
213 words
A device for placement between a free-standing heating unit and a vertical surface to prevent overheating of the vertical surface by the radiation of heat from the heating unit comprising an elongated tubular element mounted on support means and having one end closed, the other end being open; a fan assembly operatively connected with said other end of said tubular element to introduce a controlled flow of air into the interior said tube and discharged from said tube through at least two circumferentially spaced apart openings on the upper surface of said tube, one of said at least two openings being so positioned on said upper surface as to direct air passing therethrough from the interior of said tubular element in the direction of the vertical surface, the other side of said at least two openings being so positioned on said upper surface as to direct air passing therethrough from interior of said tubular element toward the adjacent heating unit surface; a temperature sensitive control assembly operatively associated with said fan assembly and activated by the temperature of the air heated by the heating unit; first electrical conduit means interconnecting said control assembly and said fan assembly and second electrical conduit means interconnecting said control assembly with a conventional source of electrical power.
Claim 3
Dependent Claim
24 words
The device according to claim 1 wherein said at least two circumferentially spaced apart openings comprises two parallel rows of a plurality of openings.
Claim 4
Dependent Claim
21 words
The device according to claim 2 wherein said spaced apart openings comprises a pair of linear slots in said upper surface.
Claim 5
Dependent Claim
18 words
The device according to claim 1 wherein said temperature sensitive control assembly is attached to said tubular element.
Claim 6
Dependent Claim
25 words
The device according to claim 1 wherein the form of said tubular element is selected from the group consisting of linear, arcuate, and L-shaped forms.
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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) | 1986-10-24 | 1987-04-25 | 1987-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-10-24 | 1991-04-25 | 1991-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-10-24 | 1995-04-25 | 1995-10-25 | $7700.00 | Window Closed / Lapsed |