Patent US3698379A successfully refreshed from Google Patents.
US3698379A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Orchard heater
Assignee: Chevron USA Inc
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Filing: 1970-10-12
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Granted: 1972-10-17
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Expires: 1990-10-12
Abstract
Abstract An orchard heater is provided which has improved combustion properties and, consequently, reduced soot deposit problems. The orchard heater is provided with a primary combustion chamber, a stack mounted thereon and an air-fuel mixer in combination with directional means which directs the primary combustion flame to more evenly distribute the heat generated thereby insuring complete combustion and little, if any, build-up of soot.
Inventors
- 👤 Harold L Cheney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 02:08
CPC Classifications
A; A01; A01G; A01G13/00; A01G13/06
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
176 words
In an orchard heater having a burner pot with a first opening and a second opening upon which is mounted a burner stack and constructed to operate with a fuel introduced into said burner pot as a spray and ignited to give a primary combustion flame in said burner pot and a secondary combustion flame in said burner stack during operation of said orchard heater, the improvement comprising (1) an air-fuel mixer mounted on said first opening and constructed to operate in conjunction with (2) directional means constructed to direct the longitudinal axis of said primary combustion flame away from the walls of said burner pot and towards the vertical axis of said burner pot at an angle of from about 20* to 30* downward from the horizontal to more evenly distribute the heat generated by said flame, and to assure that between (1) said primary combustion flame in said burner pot and (2) said secondary combustion flame in said burner stack, complete combustion is achieved, thereby avoiding soot build-up during operation of said orchard heater.
Claim 2
Dependent Claim
176 words
In an orchard heater having a burner pot with a first opening and a second opening upon which is mounted a burner stack and constructed to operate with a fuel introduced into said burner pot as a spray and ignited to give a primary combustion flame in said burner pot and a secondary combustion flame in said burner stack during operation of said orchard heater, the improvement comprising (1) an air-fuel mixer mounted on said first opening and constructed to operate in conjunction with (2) directional means constructed to direct the longitudinal axis of said primary combustion flame away from the walls of said burner pot and towards the vertical axis of said burner pot at an angle of from about 20* to 30* downward from the horizontal to more evenly distribute the heat generated by said flame, and to assure that between (1) said primary combustion flame in said burner pot and (2) said secondary combustion flame in said burner stack, complete combustion is achieved, thereby avoiding soot build-up during operation of said orchard heater.
Claim 3
Dependent Claim
29 words
Claim 1, wherein said first opening is on the top portion of said burner pot, said air-fuel mixer is a swirl cone and said directional means is a tube.
Claim 4
Dependent Claim
15 words
Claim 2, wherein said tube is a stovepipe elbow and said angle is about 23*.
Claim 5
Dependent Claim
203 words
In an orchard heater having a burner pot with a first opening, a second opening upon which is mounted a burner stack, a duct running from said stack to said burner pot constructed to provide for the return of warm gAses to said burner pot during operation of said orchard heater, and constructed to operate with fuel introduced into said burner pot as a spray and ignited to give a primary combustion flame in said burner pot and a secondary combustion flame in said burner stack during operation of said orchard heater, the improvement comprising (1) an air-fuel mixer mounted on said first opening and constructed to operate in conjunction with (2) directional means constructed to direct the longitudinal axis of said primary combustion flame away from the walls of said burner pot and toward the vertical axis of said burner pot at an angle of from horizontal to about 30* downward from the horizontal to more evenly distribute the heat generated by said flame, and to assure that between (1) said primary combustion flame in said burner pot and (2) said secondary combustion flame in said burner stack, complete combustion is achieved, thereby avoiding soot build-up during operation of said orchard heater.
Claim 6
Dependent Claim
203 words
In an orchard heater having a burner pot with a first opening, a second opening upon which is mounted a burner stack, a duct running from said stack to said burner pot constructed to provide for the return of warm gAses to said burner pot during operation of said orchard heater, and constructed to operate with fuel introduced into said burner pot as a spray and ignited to give a primary combustion flame in said burner pot and a secondary combustion flame in said burner stack during operation of said orchard heater, the improvement comprising (1) an air-fuel mixer mounted on said first opening and constructed to operate in conjunction with (2) directional means constructed to direct the longitudinal axis of said primary combustion flame away from the walls of said burner pot and toward the vertical axis of said burner pot at an angle of from horizontal to about 30* downward from the horizontal to more evenly distribute the heat generated by said flame, and to assure that between (1) said primary combustion flame in said burner pot and (2) said secondary combustion flame in said burner stack, complete combustion is achieved, thereby avoiding soot build-up during operation of said orchard heater.
Claim 7
Dependent Claim
29 words
Claim 4, wherein said first opening is on the top portion of said burner pot, said air-fuel mixer is a swirl cone and said directional means is a tube.
Claim 8
Dependent Claim
19 words
Claim 5, wherein said tube is a stovepipe elbow constructed to direct said longitudinal axis of said flame horizontally.
References Cited (Backward Citations)
US2284157A
Cited
US3515121A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-10-17 | 1976-04-17 | 1976-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-17 | 1980-04-17 | 1980-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-17 | 1984-04-17 | 1984-10-17 | $7700.00 | Window Closed / Lapsed |