[특허]Control system for boiler and associated burner

[미국특허] Control system for boiler and associated burner 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	H05B-001/02 F22D-005/26
출원번호	US-0508467 (1995-07-28)
발명자 / 주소	Lyons Richard A. Murray Christopher L.
출원인 / 주소	C. Cowles & Company
대리인 / 주소	DeLio & Peterson, LLC
인용정보	피인용 횟수 : 16 인용 특허 : 11

초록 ▼

A control system for use with a boiler and associated burner. In one embodiment, the system comprises a first control circuit for producing a signal having alternating first and second states, the first state activating the burner and having a first predetermined duration, the second state deactivating the burner and having a second predetermined duration that defines a time period that allows foam and surging fluid in the boiler to settle, and a relay responsive to the first control circuit signal and adapted for connection to a power source and the burner, when the first control circuit signal has the first state, the relay connects the power source to the burner to activate the burner, when the first control circuit signal has the second state, the relay disconnects the power source from the burner to deactivate the burner. In another embodiment, the system further includes a sensor for continually monitoring the fluid level in the boiler, the sensor producing a signal having a first state indicating that the fluid level in the boiler is at or above a predetermined level and a second state indicating that the fluid level in the boiler is below the predetermined level, and a second control circuit responsive to the sensor signal and having an output coupled to the relay, the second control circuit producing a signal having a first state in response to the first state of the sensor signal and a second state in response to the second state of the sensor signal, the relay connecting the power source to the burner when the first and second control circuit signals have the first state and disconnecting the power source from the burner to deactivate the burner when the first control circuit signal or the second control circuit signal has the second state.

대표청구항 ▼

[ Thus, having described the invention, what is claimed is:] [9.] A process for controlling a boiler having fluid therein and an associated burner comprising the steps of:a) alternately activating the burner for a first predetermined duration and deactivating the burner for a second predetermined duration, said second predetermined duration defining a time period that allows foam and surging fluid in the boiler to settle;b) continually monitoring the fluid level in the boiler to determine if the fluid is below a predetermined level;c) disconnecting the power source from the burner if the burner is currently activated and if in step (b), it is determined that the fluid level is below the predetermined level; andd) maintaining the disconnection between the power source and the burner if the burner was previously deactivated in step (a) and if in step (b), it is determined that the fluid level is below the predetermined level.

이 특허에 인용된 특허 (11) 인용/피인용 타임라인 분석

Davies Robert L. (Pontypool GBX), Apparatus and method for determining the amount of substance in a vessel.
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Bartels James I. (Hudson WI), Automatic firing rate control mode means for a boiler.
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Bartels James I. (Hudson WI), Boiler low water sensing system utilizing energy transfer network means for delay.
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Gilbert ; Sr. Lyman F. (6871 Cartilla Ave. Alta Loma CA 91701), Boiler water liquid level control.
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Jones Howard C. (Haywards Heath GB2), Electrode boiler with automatic drain control responsive to measured electrode current.
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Eaton-Williams Raymond H. (“Heathers” ; Farnaby Drive Sevenoaks ; Kent GB2 TN13 2LQ), Humidifier control means.
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John Robert S. (Deerfield IL), Liquid level control system.
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Hull Harold L. (401 Canyon Way Sp. 43 Spanks NE 89431), Liquid level sensing system.
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Spencer John D. (P.O. Box 2458 ; Dartmouth East Postal Station Dartmouth ; Nova Scotia CAX B2W 4A5), Robust electronic liquid level gauge.
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Bartels James I. (Hudson WI), Single probe low water control.
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Garrison Dale L. (Antioch IL) Strutz William F. (Racine WI), Water distiller having a heating element with temperature sensing and control elements.
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이 특허를 인용한 특허 (16) 인용/피인용 타임라인 분석

Lindberg,Karl Erik, Boiler control unit.
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Thomson,Christopher J., Conductance control for detecting foam and/or an unstable fluid line.
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Richard A. Lyons ; Christopher L. Murray, Cycle control system for boiler and associated burner.
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Stickney Bristol L. ; Sindelar Allan L., Direct current electrical controls for heating systems.
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Merwin,Jeffrey C.; Zarate,Roberto, Fluid detector recognizing foam and surge conditions.
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Orthlieb, Frederick L.; Houser, Ari N.; Parlikar, Tushar Anil; Cheever, Erik A., Low-power home heating or cooling system.
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Rowe, Michael Alan; Goetsch, John Philip, Method and apparatus for optimizing a steam boiler system.
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Kemp, Brendan; Nichols, Paul James, Pressurized steam boilers and their control.
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Kemp,Brendan; Nichols,Paul James, Pressurized steam boilers and their control.
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Douglas Scott ; Haas Jonathon ; Kingdon Charles, Steam control for combination oven and steamer.
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Saksena,Atul, Steam oven system having steam generator with controlled fill process.
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Parrini Mark J. ; McCall David F. ; Zelina Francis J. ; Lukas Terrence L., Steam sterilization apparatus and control system.
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Orthlieb, Frederick L.; Letzt, Alan M.; Cheever, Erik A.; Parlikar, Tushar A.; Houser, Ari, System and methods for controlling a supply of electric energy.
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Murray, Christopher L.; Lyons, Richard A., Water feeder controller for boiler.
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Murray, Christopher L.; Lyons, Richard A., Water feeder controller for boiler.
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Murray,Christopher L; Lyons,Richard A, Water feeder controller for boiler.
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A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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[미국특허] Control system for boiler and associated burner 원문보기