US3847537A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air-atomizing fuel burner
Assignee: Individual
•
Filing: 1972-08-22
•
Granted: 1974-11-12
•
Expires: 1992-08-22
Abstract
Abstract An air-atomizing fuel burner system comprising an air compressor, a fuel reservoir and an air-atomizing nozzle. A valve is provided in the suction line of the air compressor for connecting the vacuum side of the air compressor to ambient during the burning cycle, and to the fuel reservoir during the refilling cycle. Air flow restrictors are provided in the pressure and vacuum lines from the air compressor to the fuel reservoir to control the air pressure and vacuum in the fuel reservoir. The air compressor acts to supply primary air and fuel to the nozzle during the burning cycle, and draw fuel from a remote fuel supply source during the fuel reservoir refilling cycle. A flame spreader is employed in combination with the airatomizing nozzle according to another aspect of the invention to stabilize and shape the flame. The position and diameter of of the flame spreader are set to provide optimum fuel burning characteristics.
Inventors
- 👤 W Velie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 10:12
CPC Classifications
F; F23; F23K; F23K5/00; F23D; F23D11/00; F23D11/10; F23D11/36; F23D11/40; F23D17/00; F23D2207/00; F23D2900/00; F23D2900/11401
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
128 words
An air-atomizing fuel burner system comprising air-atomizing nozzle means for using air under pressure to atomize liquid fuel, air compressor means, means for delivering air under pressure from said air compressor means to said air-atomizing nozzle means, fuel reservoir means for storing liquid fuel, means for supplying liquid fuel to said fuel reservoir means from a remote fuel supply source, means for delivering liquid fuel from said fuel reservoir means to said air-atomizing nozzle means, means for delivering a portion of said air under pressure from said air compressor means to said fuel reservoir means, and means for connecting the vacuum side of said air compressor means to ambient during the burning cycle of said air-atomizing nozzle means and to said fuel reservoir during the reservoir refilling cycle.
Claim 2
Dependent Claim
128 words
An air-atomizing fuel burner system comprising air-atomizing nozzle means for using air under pressure to atomize liquid fuel, air compressor means, means for delivering air under pressure from said air compressor means to said air-atomizing nozzle means, fuel reservoir means for storing liquid fuel, means for supplying liquid fuel to said fuel reservoir means from a remote fuel supply source, means for delivering liquid fuel from said fuel reservoir means to said air-atomizing nozzle means, means for delivering a portion of said air under pressure from said air compressor means to said fuel reservoir means, and means for connecting the vacuum side of said air compressor means to ambient during the burning cycle of said air-atomizing nozzle means and to said fuel reservoir during the reservoir refilling cycle.
Claim 3
Dependent Claim
47 words
The air-atomizing fuel burner system of claim 1 in which said means for delivering a portion of the air under pressure from said air compressor means to said fuel reservoir means includes air flow restriction means for restricting the flow of air to said fuel reservoir means.
Claim 4
Dependent Claim
42 words
The air-atomizing fuel burner system of claim 1 in which said means for delivering liquid fuel to said air-atomizing nozzle means from said fuel reservoir means includes fuel flow restriction means for restricting the flow of fuel to said air-atomizing nozzle means.
Claim 5
Dependent Claim
28 words
The air-atomizing fuel burner system of claim 3 in which said means for restricting the flow of fuel to said air-atomizing nozzle means is a flow restriction orifice.
Claim 6
Dependent Claim
40 words
The air-atomizing fuel burner system of claim 1 in which said means for connecting the vacuum side of said air compressor means to said fuel reservoir means includes means for restricting the flow of air from said fuel reservoir means.
Claim 7
Dependent Claim
47 words
The air-atomizing fuel burner system of claim 1 in which said means for connecting the vacuum side of said air compressor means to said fuel reservoir means includes means responsive to the fuel level in said fuel reservoir and a valve pilot operated by said responsive means.
Claim 8
Dependent Claim
29 words
The air-atomizing fuel burner system of claim 6 in which said means responsive to the fuel level in said fuel reservoir is a float and mechanically actuated switch combination.
Claim 9
Dependent Claim
40 words
The air-atomizing fuel burner system of claim 1 in which said means for supplying air under pressure to said air-atomizing nozzle means from said air compressor means includes means for regulating the air pressure supplied to said air-atomizing nozzle means.
Claim 10
Dependent Claim
162 words
An air-atomizing fuel burner system comprising air-atomizing nozzle means for using air under pressure to atomize liquid fuel, air compressor means, means for delivering air under pressure from said air compressor means to said air-atomizing nozzle means, fuel reservoir means for storing liquid fuel, means for supplying liquid fuel to said fuel reservoir means from a remote fuel supply source, means for delivering liquid fuel from said fuel reservoir means to said air-atomizing nozzle means, means for delivering a portion of said air under pressure from said air compressor means to said fuel reservoir means, and means for connecting the vacuum side of said air compressor means to ambient during the burning cycle of said air-atomizing nozzle means and to said fuel reservoir during the reservoir refilling cycle, Means for igniting the atomized liquid fuel in the presence of combustion air to produce a combustion flame, and flame spreader means located downstream of said ignition means for stabilizing and shaping said flame.
Claim 11
Dependent Claim
162 words
An air-atomizing fuel burner system comprising air-atomizing nozzle means for using air under pressure to atomize liquid fuel, air compressor means, means for delivering air under pressure from said air compressor means to said air-atomizing nozzle means, fuel reservoir means for storing liquid fuel, means for supplying liquid fuel to said fuel reservoir means from a remote fuel supply source, means for delivering liquid fuel from said fuel reservoir means to said air-atomizing nozzle means, means for delivering a portion of said air under pressure from said air compressor means to said fuel reservoir means, and means for connecting the vacuum side of said air compressor means to ambient during the burning cycle of said air-atomizing nozzle means and to said fuel reservoir during the reservoir refilling cycle, Means for igniting the atomized liquid fuel in the presence of combustion air to produce a combustion flame, and flame spreader means located downstream of said ignition means for stabilizing and shaping said flame.
Claim 12
Dependent Claim
30 words
The air-atomizing fuel burner system of claim 9 in which the ratio of flame spreader diameter to separation distance between said flame spreader and air-atomizing nozzle means is about 1.
Claim 13
Dependent Claim
28 words
The air atomizing fuel burner system of claim 9 in which said flame spreader is located in the gaseous or hydroxyl type combustion zone of said combustion flame.
Claim 14
Dependent Claim
25 words
The air-atomizing fuel burner system of claim 9 in which said flame spreader is between about 1.5 and 5 inches downstream from said air-atomizing nozzle.
Claim 15
Dependent Claim
99 words
An air-atomizing fuel burner system comprising air-atomizing nozzle means for using primary air under pressure to atomize liquid fuel, means for delivering liquid fuel to said air-atomizing nozzle means, means for delivering primary air under pressure to said air-atomizing nozzle means to atomize said liquid fuel, means for igniting the atomized liquid fuel in the presence of secondary air to produce a combustion flame, and flame spreader means located downstream of said air-atomizing nozzle means for stabilizing and shaping said flame, said flame spreader means being located in the gaseous or hydroxyl type combustion zone of said combustion flame.
Claim 16
Dependent Claim
99 words
An air-atomizing fuel burner system comprising air-atomizing nozzle means for using primary air under pressure to atomize liquid fuel, means for delivering liquid fuel to said air-atomizing nozzle means, means for delivering primary air under pressure to said air-atomizing nozzle means to atomize said liquid fuel, means for igniting the atomized liquid fuel in the presence of secondary air to produce a combustion flame, and flame spreader means located downstream of said air-atomizing nozzle means for stabilizing and shaping said flame, said flame spreader means being located in the gaseous or hydroxyl type combustion zone of said combustion flame.
Claim 17
Dependent Claim
30 words
The air-atomizing fuel burner system of claim 13 in which the ratio of flame spreader diameter to separation distance between said flame spreader and air-atomizing nozzle means is about 1.
Claim 18
Dependent Claim
25 words
The air-atomizing fuel burner system of claim 13 in which said flame spreader is between about 1.5 and 5 inches downstream from said air-atomizing nozzle.
Claim 19
Dependent Claim
100 words
A low pressure air-atomizing fuel burner system comprising air-atomizing nozzle means for using primary air to atomize liquid fuel, means for delivering liquid fuel under low pressure to said air-atomizing nozzle means, means for delivering primary air to said air-atomizing nozzle means to atomize said liquid fuel, means for igniting the atomized liquid fuel in the presence of secondary air to produce a combustion flame, and flame spreader means located downstream of said air-atomizing nozzle means for stabilizing and shaping said flame, said flame spreader means being located in the gaseous or hydroxyl type combustion zone of said combustion flame.
Claim 20
Dependent Claim
100 words
A low pressure air-atomizing fuel burner system comprising air-atomizing nozzle means for using primary air to atomize liquid fuel, means for delivering liquid fuel under low pressure to said air-atomizing nozzle means, means for delivering primary air to said air-atomizing nozzle means to atomize said liquid fuel, means for igniting the atomized liquid fuel in the presence of secondary air to produce a combustion flame, and flame spreader means located downstream of said air-atomizing nozzle means for stabilizing and shaping said flame, said flame spreader means being located in the gaseous or hydroxyl type combustion zone of said combustion flame.
Claim 21
Dependent Claim
34 words
The air-atomizing fuel burner system of claim 16 in which said primary air and said liquid fuel are each delivered to said air-atomizing nozzle means at a pressure of about 1 to 15 psi.
Claim 22
Dependent Claim
31 words
The air atomizing fuel burner system of claim 16 in which said liquid fuel is delivered to said air atomizing nozzle means at a pressure of about 1 to 4 psi.
Claim 23
Dependent Claim
134 words
An air-atomizing fuel burner system comprising air-atomizing nozzle means for using primary air under pressure to atomize liquid fuel, air compressor means, means for delivering primary air under pressure from said air compressor means to said air-atomizing nozzle means, fuel reservoir means for storing liquid fuel, means for delivering liquid fuel from said fuel reservoir means to said air-atomizing nozzle means, means for delivering a portion of said air under pressure from said air compressor means to said fuel reservoir means, means for igniting the atomized liquid fuel in the presence of secondary air to produce a combustion flame, and flame spreader means located downstream of said air-atomizing nozzle means for stabilizing and shaping said flame, said flame spreader means being located in the gaseous or hydroxyl type combustion zone of said combustion flame.
Claim 24
Dependent Claim
134 words
An air-atomizing fuel burner system comprising air-atomizing nozzle means for using primary air under pressure to atomize liquid fuel, air compressor means, means for delivering primary air under pressure from said air compressor means to said air-atomizing nozzle means, fuel reservoir means for storing liquid fuel, means for delivering liquid fuel from said fuel reservoir means to said air-atomizing nozzle means, means for delivering a portion of said air under pressure from said air compressor means to said fuel reservoir means, means for igniting the atomized liquid fuel in the presence of secondary air to produce a combustion flame, and flame spreader means located downstream of said air-atomizing nozzle means for stabilizing and shaping said flame, said flame spreader means being located in the gaseous or hydroxyl type combustion zone of said combustion flame.
Claim 25
Dependent Claim
30 words
The air-atomizing fuel burner system of claim 19 in which the ratio of flame spreader diameter to separation distance between said flame spreader and air-atomizing nozzle means is about 1.
Claim 26
Dependent Claim
26 words
The air-atomizing fuel burner system of claim 19 in which said flame spreader is between about 1.5 and 5 inches downstreaM from said air-atomizing nozzle means.
References Cited (Backward Citations)
US1392948A
Cited
US1963758A
Cited
US2381803A
Cited
US2368179A
Cited
US2529942A
Cited
US2637375A
Cited
US3212556A
Cited
US3224488A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-11-11 | 1978-05-13 | 1978-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-11-11 | 1982-05-13 | 1982-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-11-11 | 1986-05-13 | 1986-11-12 | $7700.00 | Window Closed / Lapsed |