US4150552A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Infrared cooler for restricted regions
Assignee: Individual
•
Filing: 1976-11-26
•
Granted: 1979-04-24
•
Expires: 1996-11-26
Abstract
Abstract An apparatus for intensified infrared cooling of a restricted region includes a small infrared radiation sink and a large infrared radiation condenser that are axially related. In various embodiments, the apparatus predeterminedly positions an object to be cooled with respect to the apparatus and/or includes a controller for sensing and maintaining the temperature of the object.
Inventors
- 👤 Gerald Altman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:52
CPC Classifications
F; F25; F25B; F25B21/00; F25B21/02; F25B23/00; F25B23/003; Y; Y10; Y10S; Y10S62/00; Y10S62/01
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
87 words
A radiation cooler comprising infrared radiation sink means of restricted geometrical dimension and infrared radiation condensing means of extended geometrical dimension along an optical axis, said radiation sink means comprising a substantially black body surface, said condensing means communicating optically with a selected geometrical region, heat exchanger means for removing heat from said radiation sink means, temperature sensing means communicating with said selected geometrical region, said temperature sensing means being a pyrometer, and control means operatively connected between said temperature sensing means and said heat exchanger means.
Claim 2
Dependent Claim
87 words
A radiation cooler comprising infrared radiation sink means of restricted geometrical dimension and infrared radiation condensing means of extended geometrical dimension along an optical axis, said radiation sink means comprising a substantially black body surface, said condensing means communicating optically with a selected geometrical region, heat exchanger means for removing heat from said radiation sink means, temperature sensing means communicating with said selected geometrical region, said temperature sensing means being a pyrometer, and control means operatively connected between said temperature sensing means and said heat exchanger means.
Claim 3
Dependent Claim
24 words
The radiation cooler of claim 1 wherein said radiation sink means comprises an infrared radiation transmitting window substantially enclosing said substantially black body surface.
Claim 4
Dependent Claim
19 words
The radiation cooler of claim 1 wherein said heat exchanger means is in contact with said radiation sink means.
Claim 5
Dependent Claim
14 words
The radiation cooler of claim 1 wherein said condensing means is a spherical reflector.
Claim 6
Dependent Claim
20 words
The radiation cooler of claim 1 wherein said black body surface is at a focal point of said condensing means.
Claim 7
Dependent Claim
14 words
The radiation cooler of claim 1 wherein said condensing means is an elliptical reflector.
Claim 8
Dependent Claim
12 words
The radiation cooler of claim 1 wherein said condensing means is aspheric.
Claim 9
Dependent Claim
13 words
The radiation cooler of claim 1 wherein said pyrometer is a radiation pyrometer.
Claim 10
Dependent Claim
25 words
The radiation cooler of claim 1 including means for positioning said sink means and said condensing means predeterminedly with respect to said selected geometrical region.
References Cited (Backward Citations)
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Cited
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Cited
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Cited
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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) | 1982-04-23 | 1982-10-23 | 1983-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-04-23 | 1986-10-23 | 1987-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-04-23 | 1990-10-23 | 1991-04-24 | $7700.00 | Window Closed / Lapsed |