US4977111A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Porous radiant burners having increased radiant output
Assignee: Arizona's Public Universities
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Filing: 1989-08-04
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Granted: 1990-12-11
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Expires: 2009-08-04
Abstract
Abstract Means and methods for enhancing the output of radiant energy from a porous radiant burner by minimizing the scattering and increasing the adsorption, and thus emission of such energy by the use of randomly dispersed ceramic fibers of sub-micron diameter in the fabrication of ceramic fiber matrix burners and for use therein.
Inventors
- 👤 Timothy W. Tong
- 👤 Sanjeev B. Sathe
- 👤 Robert E. Peck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:27
CPC Classifications
F; F23; F23D; F23D14/00; F23D14/12; F23D14/16; C; C04; C04B; C04B28/00; C04B28/02; C04B28/06; C04B30/00; C04B30/02; C04B35/00; C04B35/01; C04B35/44; C04B35/48; C04B35/486; C04B35/488; C04B35/71; C04B35/78; C04B35/80; C04B2235/00; C04B2235/02; C04B2235/50; C04B2235/52; C04B2235/5208; C04B2235/5216; C04B2235/522; C04B2235/5224; C04B2235/5232; C04B2235/5264; F23D2203/00; F23D2203/10; F23D2203/106; F23D2213/00
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
16 words
A porous radiant burner comprising a mold consisting of bound predried heat-cured sub-micron diameter ceramic fibers.
Claim 2
Dependent Claim
16 words
A porous radiant burner comprising a mold consisting of bound predried heat-cured sub-micron diameter ceramic fibers.
Claim 3
Dependent Claim
39 words
A burner according to claim 1 in which said mold contains a binder selected from the group consisting of alumina cement, zirconia cement and zirconia rigidizer in a binder-to fiber weight ratio of from about 0.2 to about 0.8.
Claim 4
Dependent Claim
21 words
A burner according to claim 1 in which said ceramic fibers are selected from the group consisting of alumina and silica.
Claim 5
Dependent Claim
21 words
A burner according to claim 2 in which said ceramic fibers are selected from the group consisting of alumina and silica.
References Cited (Backward Citations)
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Cited
US4857489A
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US4746287A
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US4889481A
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US4917599A
Cited
US4878837A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-12-10 | 1994-06-11 | 1994-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-12-10 | 1998-06-11 | 1998-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-12-10 | 2002-06-11 | 2002-12-11 | $7700.00 | Window Closed / Lapsed |