US3561422A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Infrared radiation generator
Assignee: Individual
•
Filing: 1969-04-01
•
Granted: 1971-02-09
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Expires: 1989-04-01
Abstract
Abstract A portable infrared heater comprises a burner capable of burning a plurality of fluid fuels individually or simultaneously and a combustion chamber lined with refractory material. Mean are provided to create a vortex of heated gases in a combustion chamber for even heating. A flue mounted wind cap permits variations of draft pressure from negative to positive values to cutoff. The combustion chamber may be open to the atmosphere for direct radiation or closed with a silicon carbide plate in which case secondary radiation is emitted from the outer face of such plate. The surfaces of the lining and the plate are textured to increase their area and radiation intensity. A stand permits radiation to be beamed in any desired direction.
Inventors
- 👤 Eric Colin-Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 05:12
CPC Classifications
F; F24; F24C; F24C1/00; F24C1/02; F24C1/04; F24C1/08; F24C1/16
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
110 words
An infrared radiation generator comprising a fluid fuel burner, means for admitting fuel into said burner, means for admitting air into said burner, a combustion chamber provided with a radiation emitting opening, refractory material lining said chamber, said material being adapted when heated to a predetermined temperature by combustion products issuing from said burner to emit abundant radiation in the infrared portion of the spectrum; an exhaust flue connecting said combustion chamber with the outer atmosphere and high heat permeability means closing said radiation emitting opening and means for varying the draft pressure in said flue to create, in combination with air moving externally of said flue, a hyper-draft therein.
Claim 2
Dependent Claim
110 words
An infrared radiation generator comprising a fluid fuel burner, means for admitting fuel into said burner, means for admitting air into said burner, a combustion chamber provided with a radiation emitting opening, refractory material lining said chamber, said material being adapted when heated to a predetermined temperature by combustion products issuing from said burner to emit abundant radiation in the infrared portion of the spectrum; an exhaust flue connecting said combustion chamber with the outer atmosphere and high heat permeability means closing said radiation emitting opening and means for varying the draft pressure in said flue to create, in combination with air moving externally of said flue, a hyper-draft therein.
Claim 3
Dependent Claim
21 words
An infrared radiation generator as claimed in claim 1 in which said high heat permeability means is composed of silicon carbide.
Claim 4
Dependent Claim
156 words
An infrared radiation generator comprising a fluid fuel burner capable of burning a plurality of fuels, means for admitting fluid fuel into said burner, means for admitting air into said burner, a combustion chamber provided with a radiation emitting opening, means for causing combustion products issued from said burner to form a vortex within said chamber, refractory material lining said chamber adapted, when heated to a predetermined temperature, to emit abundant radiation in the infrared portion of the spectrum, the surface of said refractory material being textured, an exhaust flue connecting said combustion chamber with the outer atmosphere and high heat permeability means closing said radiation emitting opening; said high heat permeability means being composed of silicon carbide and the outer face of said high heat permeability means being textured and means for adjusting the draft pressure in said flue to create, in cooperation with air movement external to said flue, a hyper-draft in said flue.
Claim 5
Dependent Claim
156 words
An infrared radiation generator comprising a fluid fuel burner capable of burning a plurality of fuels, means for admitting fluid fuel into said burner, means for admitting air into said burner, a combustion chamber provided with a radiation emitting opening, means for causing combustion products issued from said burner to form a vortex within said chamber, refractory material lining said chamber adapted, when heated to a predetermined temperature, to emit abundant radiation in the infrared portion of the spectrum, the surface of said refractory material being textured, an exhaust flue connecting said combustion chamber with the outer atmosphere and high heat permeability means closing said radiation emitting opening; said high heat permeability means being composed of silicon carbide and the outer face of said high heat permeability means being textured and means for adjusting the draft pressure in said flue to create, in cooperation with air movement external to said flue, a hyper-draft in said flue.
Claim 6
Dependent Claim
34 words
An infrared radiation generator as claimed in claim 3 in which said means for adjusting the draft pressure in said flue, when substantially vertically disposed, will respond to air movement from any compass direction.
Claim 7
Dependent Claim
38 words
An infrared radiation generator as claimed in claim 4 provided with support means permitting radiation emanating from said generator to be beamed in any desired direction and further means for locking said generator in the position so chosen.
Claim 8
Dependent Claim
19 words
An infrared radiation generator as claimed in claim 4 in which said plurality of fuels may be burned simultaneously.
References Cited (Backward Citations)
DE464692C
Cited
FR1106351A
Cited
US3203413A
Cited
US3139879A
Cited
US3229680A
Cited
US3407024A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-02-08 | 1974-08-10 | 1975-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-08 | 1978-08-10 | 1979-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-08 | 1982-08-10 | 1983-02-09 | $7700.00 | Window Closed / Lapsed |