[특허]System and method for maintaining a liquid level

[미국특허] System and method for maintaining a liquid level 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F04B-049/00 F25D-017/02 G08B-021/00
출원번호	US-0619901 (1975-10-06)
발명자 / 주소	Clark Anthony W. (Carrollton TX) Stubbs Jr. Rex G. (Garland TX)
출원인 / 주소	Beckett Corporation (Dallas TX 02)
인용정보	피인용 횟수 : 62 인용 특허 : 0

초록 ▼

The specification discloses a technique for controlling a pump to maintain a body of liquid below a maximum liquid level. A low voltage high frequency signal is applied to a conductive first probe which extends to a desired maximum liquid level. The high frequency signal is also applied to an electronic detector and switching circuit in order to maintain the switching circuit in a first state when the liquid level does not contact the first probe. The effect of the application of the high frequency signal to the switching circuit is reduced when the liquid level contacts the first probe, thereby changing the switching circuit to a second state. A pump is then energized to lower the liquid level in response to the second state of the switching circuit. A second probe is then coupled to receive the high frequency signal. The second probe extends to a lower level than does the first probe, thereby maintaining the pump in an energized state until the liquid level falls below the second probe. A safety overflow probe and circuitry is provided to prevent overflow in case of malfunction of the system.

대표청구항 ▼

A liquid level control system for an air conditioner comprising: first and second conductive probes suspended above a body of liquid and extending below a maximum desired level, a third conductive probe suspended above the body of liquid and extending downwardly to said maximum desired level, an oscillator normally coupled to said first and third probes for generating a high frequency signal, electronic switching means coupled to said probes and said oscillator, said switching means being switched to a first state in response to said high frequency signal when the liquid level does not contact said third probe and being switched to a second state when the liquid level contacts said third probe, means responsive to said second state of said switching means for coupling said second probe to said oscillator, wherein said switching means is maintained in said second state as long as the liquid level contacts said second probe, pump means responsive to said second state of said switching means for lowering the liquid level of the body of liquid, and a fourth safety overflow prevention conductive probe connected to terminate operation of said air conditioner if the liquid level rises to a predetermined oveflow level.

이 특허를 인용한 특허 (62) 인용/피인용 타임라인 분석

Stiles, Jr., Robert W.; Berthelsen, Lars Hoffmann; Westermann-Rasmussen, Peter; Kjaer, Gert; Lungeanu, Florin, Anti-entrapment and anti-dead head function.
상세보기
Kates, Lawrence, Authentication codes for building/area code address.
상세보기
Koenig Robert H. ; Koenig Richard E., Automatic sub-floor pumping system.
상세보기
Koenig Robert H. ; Koenig Richard E., Automatic sub-floor pumping system.
상세보기
Boese, Thomas G.; Bishop, Michael B.; Ambrose, Jeffrey C.; Emerson, John; Paton, David E.; Mazza, Joseph J., Battery backup sump pump systems and methods.
상세보기
Kates, Lawrence, Bi-directional hand-shaking sensor system.
상세보기
Ward, Charles Barry, Condensate pump.
상세보기
Stiles, Jr., Robert W.; Berthelsen, Lars Hoffmann; Robol, Ronald B.; Cox, Everett; Steen, Donald; Murphy, Kevin; Hruby, Daniel J.; Westermann-Rasmussen, Peter; Kjaer, Gert; Harvest, Nils-Ole; Yahnker, Christopher; Woodcock, Jr., Walter; Runarsson, Einar Kjartan; Hansen, Arne Fink; Morando, Alberto; Lungeanu, Florin, Control algorithm of variable speed pumping system.
상세보기
Stiles, Jr., Robert W.; Robol, Ronald B.; Berthelsen, Lars Hoffmann; Harvest, Nils-Ole; Cox, Everett; Steen, Donald; Murphy, Kevin; Hruby, Daniel J.; Westermann-Rasmussen, Peter; Kjaer, Gert, Control algorithm of variable speed pumping system.
상세보기
Lively, Olin A., Control circuitry for water level control of pools.
상세보기
Kates, Lawrence, Controlled power-efficient operation of wireless communication devices.
상세보기
Kates, Lawrence, Controlled power-efficient operation of wireless communication devices.
상세보기
Kates, Lawrence, Controlled power-efficient operation of wireless communication devices.
상세보기
Robol, Ronald B.; Hruby, Daniel J.; Colvin, Johnathan Steven, Discharge vacuum relief valve for safety vacuum release system.
상세보기
Kates, Lawrence, Environmental sensing systems having independent notifications across multiple thresholds.
상세보기
Kates, Lawrence, Environmental sensing systems having independent notifications across multiple thresholds.
상세보기
Stiles, Jr., Robert W.; Berthelsen, Lars Hoffmann; Westermann-Rasmussen, Peter; Kjaer, Gert; Lungeanu, Florin, Flow control.
상세보기
Atkins Donald G. (Cedar MN), Liquid level control apparatus.
상세보기
Overton Raymond C. (Ponca City OK) Cole Charles F. (Ponca City OK), Liquid level controller.
상세보기
Miller Gerald K. (Hersey MI), Liquid level sensor, pump system means and circuit means.
상세보기
Kates, Lawrence, Measuring environmental conditions over a defined time period within a wireless sensor system.
상세보기
Kates, Lawrence, Method and apparatus for detecting severity of water leaks.
상세보기
Kates, Lawrence, Method and apparatus for detecting water leaks.
상세보기
Kidd, Melissa Drechsel; Genaw, William James; Pasche, Micheal Robert; Baase, II, Gary Thomas; Berthelsen, Lars Hoffmann; Fink, Rasmus; Holm, Martin Skov, Method of controlling a pump and motor.
상세보기
Kates, Lawrence, Method of measuring signal strength in a wireless sensor system.
상세보기
Morrison Daniel R. (Key Biscayne FL) Pickell William C. (Key Biscayne FL) Massey William S. (Silver Spring MD), Overflow and leakage detection system for an air conditioning unit.
상세보기
Blichmann, John R.; Kloeblen, Scott A., Overflow prevention mechanism for liquid transfer systems.
상세보기
Kates, Lawrence, Portable monitoring unit.
상세보기
Koehl, Robert M., Pump controller system and method.
상세보기
Koehl, Robert M., Pump controller system and method.
상세보기
Koehl, Robert M., Pump controller system and method.
상세보기
Koehl, Robert M., Pump controller system and method.
상세보기
Stiles, Jr., Robert W.; Berthelsen, Lars Hoffmann; Robol, Ronald B.; Yahnker, Christopher; Hruby, Daniel J.; Murphy, Kevin; Runarsson, Einar Kjartan; Hansen, Arne Fink; Lungeanu, Florin; Westermann-Rasmussen, Peter, Pumping system with housing and user interface.
상세보기
Stiles, Jr., Robert W.; Berthelsen, Lars Hoffmann; Robol, Ronald B.; Yahnker, Christopher; Runarsson, Elnar Kjartan, Pumping system with power optimization.
상세보기
Stiles, Jr., Robert W.; Berthelsen, Lars Hoffmann; Robol, Ronald B.; Yahnker, Christopher R.; Hruby, Daniel J.; Murphy, Kevin; Brown, Edward; MacCallum, David; Dunn, Dennis; Clack, Kenneth; Runarsson, Einar Kjartan; Morando, Alberto, Pumping system with two way communication.
상세보기
Kates, Lawrence, Relaying communications in a wireless sensor system.
상세보기
Kates, Lawrence, Relaying communications in a wireless sensor system.
상세보기
Kates, Lawrence, Relaying communications in a wireless sensor system.
상세보기
Stiles, Jr., Robert W.; Berthelsen, Lars Hoffmann, Safety vacuum release system.
상세보기
Kates, Lawrence, Sensor device measurements adaptive to HVAC activity.
상세보기
Kates, Lawrence, Signal strength-based routing of network traffic in a wireless communication system.
상세보기
Bourell, Jr., Alfred M.; Cox, Ricky W.; Morton, David K.; Truitt, Roderick C.; Washington, Curtis T., Solid state sump pump control.
상세보기
Bourell, Jr., Alfred M.; Cox, Ricky W.; Morton, David K.; Truitt, Roderick C.; Washington, Curtis T., Solid state sump pump control.
상세보기
Mayer Thomas J. (Phoeniz AZ), Sump pump control system.
상세보기
Mehlhorn,William L., Switch assembly, electric machine having the switch assembly, and method of controlling the same.
상세보기
Mehlhorn,William L., Switch assembly, electric machine having the switch assembly, and method of controlling the same.
상세보기
Mehlhorn,William L., Switch assembly, electric machine having the switch assembly, and method of controlling the same.
상세보기
Kates, Lawrence, System and method for high-sensitivity sensor.
상세보기
Kates, Lawrence, System and method for high-sensitivity sensor.
상세보기
Kates, Lawrence, System and method for high-sensitivity sensor.
상세보기
Kates, Lawrence, System and method for high-sensitivity sensor.
상세보기
Kates, Lawrence, System and method for utility metering and leak detection.
상세보기
Kates,Lawrence, System and method for utility metering and leak detection.
상세보기
Gilbert Paul A. ; Jobe Terry V. ; Morrow Johnny Lee ; McEwen Thomas Vertis, System for monitoring and controlling the level of a liquid in a closed container.
상세보기
Kates, Lawrence, Testing for interference within a wireless sensor system.
상세보기
Kates, Lawrence, Traffic collision avoidance in wireless communication systems.
상세보기
Murr James ; Ellison Jack Edwin, Water distribution and return control system for evaporative cooling pad installation.
상세보기
Kates, Lawrence, Wireless sensor unit communication triggering and management.
상세보기
Kates, Lawrence, Wireless sensor unit communication triggering and management.
상세보기
Kates, Lawrence, Wireless transceiver.
상세보기
Kates, Lawrence, Wireless transceiver.
상세보기
Kates, Lawrence, Wireless transceiver.
상세보기

활용도 분석정보

상세보기

다운로드

내보내기

활용도 Top5 특허

해당 특허가 속한 카테고리에서 활용도가 높은 상위 5개 콘텐츠를 보여줍니다.
더보기 버튼을 클릭하시면 더 많은 관련자료를 살펴볼 수 있습니다.

내보내기 메뉴

내보내기 구분

파일저장
인쇄
메일전송

구성항목

기본정보
상세정보

관리번호, 국가코드, 자료구분, 상태, 출원번호, 출원일자, 공개번호, 공개일자, 등록번호, 등록일자, 발명명칭(한글), 발명명칭(영문), 출원인(한글), 출원인(영문), 출원인코드, 대표IPC

저장형식

Text(ASCII format)
Excel format
PIAS분석(.xls)

메일정보

받는사람 (필수): @
보내는사람 (선택): @
제목
내용: KISTI 검색결과 이메일 서비스

안내

총 건의 자료가 검색되었습니다.

다운받으실 자료의 인덱스를 입력하세요. (1-10,000)

검색결과의 순서대로 최대 10,000건 까지 다운로드가 가능합니다.

데이타가 많을 경우 속도가 느려질 수 있습니다.(최대 2~3분 소요)

다운로드 파일은 UTF-8 형태로 저장됩니다.
파일의 내용이 제대로 보이지 않을실 때는 웹브라우저 상단의 보기 -> 인코딩 -> 자동선택 여부를 확인하십시오.

Text(ASCII format)
Excel format

AI-Helper ※ AI-Helper는 을 사용합니다.

AI-Helper

안녕하세요, AI-Helper입니다. 좌측 "선택된 텍스트"에서 텍스트를 선택하여 요약, 번역, 용어설명을 실행하세요.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.

IPC	Description
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

연합인증

[미국특허] System and method for maintaining a liquid level 원문보기