US3589315A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for igniting and burning air-borne particulate combustible material
Assignee: The Bank of California
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Filing: 1969-09-11
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Granted: 1971-06-29
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Expires: 1989-09-11
Abstract
Abstract Apparatus for igniting and burning airborne combustible material including a burner enclosure defining a substantially cylindrical internal burner chamber. A duct equipped with blower and connected to a supply of combustible material introduces such material into the chamber and produces flow of such material in a circumferential direction around the inside of said chamber. The burner enclosure adjacent the discharge end of the chamber includes a constricted throat section which leads to a discharge opening and which functions to restrict flow of material to outside the chamber. Means adjacent said throat section introduces air into the burner chamber with such traveling in a circumferential direction complementing the direction of movement of the airborne material introduced through the duct at the feed end of the chamber.
Inventors
- 👤 Wiibur E Hart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:06
CPC Classifications
F; F23; F23G; F23G5/00; F23G5/32
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
194 words
Apparatus for igniting and burning airborne particulate material comprising: an elongated burner tube having feed and discharge ends at axially opposite extremities, a discharge opening at the discharge end of the tube accommodating the passage of airborne material from the interior of the tube, means adjacent the feed end of the tube for introducing airborne material into the interior of the tube, a casing assembly including a shell extending about said burner tube defining an annular space surrounding the tube bounded by said shell, said assembly further including an end plate spaced axially outwardly of the feed end of the burner tube defining an end space between the end plate and said feed end of the tube which communicates with said annular space, means defining air inlet passage means distributed circumferentially about the axis of the tube connecting said end space and the interior of the tube, and a flow control plate mounted on said casing assembly in confronting spaced relation to said inlet passage means, air flowing into said passage from said end space flowing past said control plate with the amount of such air being controlled by the position of such plate.
Claim 2
Dependent Claim
194 words
Apparatus for igniting and burning airborne particulate material comprising: an elongated burner tube having feed and discharge ends at axially opposite extremities, a discharge opening at the discharge end of the tube accommodating the passage of airborne material from the interior of the tube, means adjacent the feed end of the tube for introducing airborne material into the interior of the tube, a casing assembly including a shell extending about said burner tube defining an annular space surrounding the tube bounded by said shell, said assembly further including an end plate spaced axially outwardly of the feed end of the burner tube defining an end space between the end plate and said feed end of the tube which communicates with said annular space, means defining air inlet passage means distributed circumferentially about the axis of the tube connecting said end space and the interior of the tube, and a flow control plate mounted on said casing assembly in confronting spaced relation to said inlet passage means, air flowing into said passage from said end space flowing past said control plate with the amount of such air being controlled by the position of such plate.
Claim 3
Dependent Claim
228 words
Apparatus for igniting and burning airborne particulate material comprising: an elongated burner tube including a shell and refractory material lining the interior of the shell, said tube having feed and discharge ends at axially opposite extremities, a casing assembly including a second shell extending about said burner tube and defining an annular space surrounding the tube bounded by said second shell, said casing assembly further including an end plate spaced axially outwardly of the feed end of the burner tube defining an end space between the end plate and the feed end of its tube which communicates with said annular space, said end plate being detachably fastened about the perimeter thereof to said second sHell, an end plug inserted within the feed end of the burner tube comprising an expanse of refractory material bounded about the perimeter of the expanse by a band which fits at least partially within the interior of the tube, said end plug being mounted on said end plate of said casing assembly, air inlet passage means defined between the perimeter of the end plug and the interior of said tube at the tube''s feed end connecting said end space with the interior of the tube, and a duct extending tangentially of and connecting with the interior of the burner tube adjacent its feed end for feeding airborne particulate material into the burner tube.
Claim 4
Dependent Claim
228 words
Apparatus for igniting and burning airborne particulate material comprising: an elongated burner tube including a shell and refractory material lining the interior of the shell, said tube having feed and discharge ends at axially opposite extremities, a casing assembly including a second shell extending about said burner tube and defining an annular space surrounding the tube bounded by said second shell, said casing assembly further including an end plate spaced axially outwardly of the feed end of the burner tube defining an end space between the end plate and the feed end of its tube which communicates with said annular space, said end plate being detachably fastened about the perimeter thereof to said second sHell, an end plug inserted within the feed end of the burner tube comprising an expanse of refractory material bounded about the perimeter of the expanse by a band which fits at least partially within the interior of the tube, said end plug being mounted on said end plate of said casing assembly, air inlet passage means defined between the perimeter of the end plug and the interior of said tube at the tube''s feed end connecting said end space with the interior of the tube, and a duct extending tangentially of and connecting with the interior of the burner tube adjacent its feed end for feeding airborne particulate material into the burner tube.
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) | 1974-06-28 | 1974-12-28 | 1975-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-28 | 1978-12-28 | 1979-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-28 | 1982-12-28 | 1983-06-29 | $7700.00 | Window Closed / Lapsed |