US3792958A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for operating a combustion device, such as a space heater
Assignee: Eberspaecher Climate Control Systems GmbH and Co KG
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Filing: 1972-10-16
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Granted: 1974-02-19
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Expires: 1992-10-16
Abstract
Abstract An apparatus for operating a combustion device, such as a space heater, comprises an electric motor operated blower for the combustion air as well as for the space heating air, and which has a rotatable blower shaft with electric impulse generator means associated therewith. The impulse generator may comprise, for example, an electrical coil which is located alongside the blower which is operated by the rotation of a magnet or magnets carried on the blower periphery. The impulse generator is connected via an amplifier to an igniter and also to an electromagnetically operated fuel pump. The pulses which are generated are used to actuate the igniter and to operate the fuel pump in the necessary time sequence.
Inventors
- 👤 S Kofink
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:16
CPC Classifications
B; B60; B60H; B60H1/00; B60H1/22; B60H1/2203; B60H1/2206; B60H2001/2268; B60H2001/2271; B60H2001/2284
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
115 words
A device for operating a combustion device, such as a space heater, comprising an electric motor operated blower for combustion air having a rotatable blower shaft, electrical impulse generator means associated with said blower shaft and operable in timed relation to the speed of rotation of said shaft to generate timed electrical impulses, an electric pulse operated fuel pump connected to said generator for operation thereby in timed sequence to deliver metered quantities of fuel to the combustion device, and an igniter for igniting the fuel which is delivered to the combustion device connected to said impulse generator for igniting the fuel in definite timed relation to the speed of rotation of said blower shaft.
Claim 2
Independent Claim
115 words
A device for operating a combustion device, such as a space heater, comprising an electric motor operated blower for combustion air having a rotatable blower shaft, electrical impulse generator means associated with said blower shaft and operable in timed relation to the speed of rotation of said shaft to generate timed electrical impulses, an electric pulse operated fuel pump connected to said generator for operation thereby in timed sequence to deliver metered quantities of fuel to the combustion device, and an igniter for igniting the fuel which is delivered to the combustion device connected to said impulse generator for igniting the fuel in definite timed relation to the speed of rotation of said blower shaft.
Claim 3
Dependent Claim
24 words
A device for operating a combustion device, according to claim 1, including a pulse divider connected between said impulse generator and said fuel pump.
Claim 4
Independent Claim
161 words
A device for operating a combustion device, such as a space heater, comprising an electric motor operated blower for combustion air having a rotatable blower shaft, electrical impulse generator means associated with said blower shaft and operable in timed relation to the speed of rotation of said shaft to generate timed electrical impulses, an electric pulse operated fuel pump connected to said generator for operation thereby in timed sequence to deliver metered quantities of fuel to the combustion device, and an igniter for igniting the fuel which is delivered to the combustion device connected to said impulse generator for igniting the fuel in definite timed relation to the speed of rotation of said blower shaft, said pulse transmitter including a magnet carried on said blower, and a stationary induction coil arranged to be influenced by the field of the magnet as it rotates with said blower to generate an electric pulse when it is subjected to the field of the magnet.
Claim 5
Independent Claim
161 words
A device for operating a combustion device, such as a space heater, comprising an electric motor operated blower for combustion air having a rotatable blower shaft, electrical impulse generator means associated with said blower shaft and operable in timed relation to the speed of rotation of said shaft to generate timed electrical impulses, an electric pulse operated fuel pump connected to said generator for operation thereby in timed sequence to deliver metered quantities of fuel to the combustion device, and an igniter for igniting the fuel which is delivered to the combustion device connected to said impulse generator for igniting the fuel in definite timed relation to the speed of rotation of said blower shaft, said pulse transmitter including a magnet carried on said blower, and a stationary induction coil arranged to be influenced by the field of the magnet as it rotates with said blower to generate an electric pulse when it is subjected to the field of the magnet.
Claim 6
Dependent Claim
20 words
A device for operating a combustion device, according to claim 3, wherein said induction coil comprises a magnetically controllable resistance.
Claim 7
Independent Claim
131 words
A device for operating a combustion device, such as a space heater, comprising an electric motor operated blower for combustion air having a rotatable blower shaft, electrical impulse generator means associated with said blower shaft and operable in timed relation to the speed of rotation of said shaft to generate timed electrical impulses, an electric pulse operated fuel pump connected to said generator for operation thereby in timed sequence to deliver metered quantities of fuel to the combustion device, and an igniter for igniting the fuel which is delivered to the combustion device connected to said impulse generator for igniting the fuel in definite timed relation to the speed of rotatioN of said blower shaft, and a pulse amplifier connected between said impulse generator and said igniter and said fuel pump.
Claim 8
Independent Claim
131 words
A device for operating a combustion device, such as a space heater, comprising an electric motor operated blower for combustion air having a rotatable blower shaft, electrical impulse generator means associated with said blower shaft and operable in timed relation to the speed of rotation of said shaft to generate timed electrical impulses, an electric pulse operated fuel pump connected to said generator for operation thereby in timed sequence to deliver metered quantities of fuel to the combustion device, and an igniter for igniting the fuel which is delivered to the combustion device connected to said impulse generator for igniting the fuel in definite timed relation to the speed of rotatioN of said blower shaft, and a pulse amplifier connected between said impulse generator and said igniter and said fuel pump.
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) | 1977-02-18 | 1977-08-20 | 1978-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-18 | 1981-08-20 | 1982-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-18 | 1985-08-20 | 1986-02-19 | $7700.00 | Window Closed / Lapsed |