US4878837A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Infrared burner
Assignee: Carrier Corp
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Filing: 1989-02-06
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Granted: 1989-11-07
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Expires: 2009-02-06
Abstract
Abstract An infrared burner with an extremely low pressure drop is described. The burner comprises a corrosion resistant mesh screen having a thick porous coating of ceramic fibers deposited thereon. In addition to a low pressure drop the burner has structural integrity and ability to generate radiant energy at a high rate. The burner is produced by admixing ceramic fibers with a polymeric material which burns off upon heating.
Inventors
- 👤 Nancy M. Otto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:49
CPC Classifications
C; C04; C04B; C04B38/00; C04B38/06; C04B38/063; C04B38/0635; C04B38/0645; C04B38/067; F; F23; F23D; F23D14/00; F23D14/12; F23D14/16; F23D2212/00; F23D2212/10; F23D2212/103; F23D2213/00
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
66 words
An infrared burner comprising a corrosion resistant mesh screen having deposited thereon a thick porous coating of ceramic fibers having structural integrity, ability to generate radiant energy at the rate of 80,000 BTU to 100,000 BTU per sq.ft. per hour, a pressure drop during operation of up to 0.4 inch of water, and a pressure drop cold versus hot of up to 0.2 inch of water.
Claim 2
Dependent Claim
66 words
An infrared burner comprising a corrosion resistant mesh screen having deposited thereon a thick porous coating of ceramic fibers having structural integrity, ability to generate radiant energy at the rate of 80,000 BTU to 100,000 BTU per sq.ft. per hour, a pressure drop during operation of up to 0.4 inch of water, and a pressure drop cold versus hot of up to 0.2 inch of water.
Claim 3
Dependent Claim
41 words
The burner of claim 1 wherein the coating is 0.25 inch to 0.5 inch thick, the pressure drop during operation is 0.1 to 0.4 inch of water and the pressure drop cold versus hot is up to 0.15 inch of water.
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) | 1992-11-06 | 1993-05-08 | 1993-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-11-06 | 1997-05-08 | 1997-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-11-06 | 2001-05-08 | 2001-11-07 | $7700.00 | Window Closed / Lapsed |