[특허]Leak detector

Leak detector 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	G08B-021/00 G08B-021/12 G01F-001/56 G01M-003/18 E03B-007/07 G08B-021/18
출원번호	US-0465706 (2017-03-22)
등록번호	US-10127790 (2018-11-13)
발명자 / 주소	Doughty, Jason W. Bouchard, Peter P Lake, Paul J. Burke, Joseph M.
출원인 / 주소	Watts Regulator Co.
대리인 / 주소	Burns & Levinson LLP
인용정보	피인용 횟수 : 0 인용 특허 : 49

초록 ▼

A leak detector assembly for use with a backflow prevention device includes a housing defining a passageway for receiving a fluid. A flap assembly couples to the housing for generating a low flow error signal indicating minimal fluid passing through the passageway and a fully actuated error signal indicating significant fluid passing through the passageway. The flap assembly includes a flap mounted in the passageway such that significant flow of the fluid moves the flap to generate the fully actuated error signal. The flap assembly also includes a sensing element on the flap to determine a presence of the fluid without movement of the flap to generate the low flow error signal based on a low flow of the fluid.

대표청구항 ▼

1. A leak detector assembly comprising: a housing defining a passageway for receiving a fluid; anda flap assembly coupled to the housing, the flap assembly including: a first post,a flap,a rotating arm,a second post,a first flow sensor, anda second flow sensor,wherein the flap is mounted to the first post, the second post is connected to the first post by the rotating arm, the first flow sensor is configured to detect a low flow of fluid from the passageway through the flap and generate a low flow error signal, and the second flow sensor is configured to detect a high flow of fluid from the passageway through the flap and generate a high flow error signal. 2. The leak detector assembly of claim 1, further comprising a printed circuit board for processing at least one of the high flow error signal and the low flow error signal. 3. The leak detector assembly of claim 1, further comprising a main controller connected to the flap assembly for providing wireless communication of the low flow and high flow error signals. 4. The leak detector assembly of claim 1, further comprising a main controller connected to the flap assembly for storing a date, time and duration of each of the low flow and high flow error signals. 5. The leak detector assembly of claim 1, wherein the flap assembly further includes: a magnet coupled to the second post; and a third post, wherein the second flow sensor is a fixed magnetic sensor located on the third post and configured to generate the high flow error signal based upon the magnet on the second post moving away from the fixed magnetic sensor on the third post. 6. The leak detector assembly of claim 5, wherein one of the magnet and the fixed magnetic sensor is mechanically adjustable to adjust a set point for the high flow error signal. 7. The leak detector assembly of claim 1, wherein the first flow sensor includes a sensing element on the flap that is co-planar inter-digitated conductive traces connected to a printed circuit board. 8. The leak detector assembly of claim 1, wherein the flap is mounted on the first post to allow 90° of rotation in the housing. 9. The leak detector assembly of claim 1, wherein the flap is mounted on the first post substantially perpendicular to the passageway when neither the low flow nor high flow error signals are activated. 10. The leak detector assembly of claim 1, wherein the flap is mounted on the first post at an angle of 45° with respect to an axis of the passageway. 11. The leak detector assembly of claim 1, wherein the flap is mounted on the first post at an angle of 30° with respect to an axis of the passageway. 12. The leak detector assembly of claim 1, further comprising a screen in the passageway upstream of the flap for disbursing energy of the fluid. 13. The leak detector assembly of claim 1, further comprising an absorptive material in the passageway upstream of the flap. 14. The leak detector assembly of claim 1, wherein the rotating arm and the second post are positioned on an exterior surface of the housing. 15. The leak detector assembly of claim 5, wherein the third post is positioned on an exterior surface of the housing proximate to the second post. 16. A leak detector assembly comprising: a housing defining a passageway for receiving a fluid; anda flap assembly coupled to the housing, the flap assembly including: a flap mounted for rotation so that the fluid in the passageway is directed to the flap;a first flow sensor on the flap for generating a low flow error signal without movement of the flap when a low flow of the fluid from the passageway wets the first flow sensor; anda second flow sensor mounted for rotation with the flap for generating a high flow error signal based on movement of the flap as a result of a high flow of the fluid from the passageway hitting the flap.

이 특허에 인용된 특허 (49)

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Story Carl E. (Cupertino CA) Nichols Jerry A. (San Jose CA) Cady Byron C. (Gilroy CA), Fluid control valve and system with leak detection and containment.
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Brown Jimmy D. (8621 Hartwell Detroit MI 48228), Leak detection and management apparatus including a programmable message device for a hot water heater.
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Jarvie, Ian F., Line leak detector and method of using same.
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Shih Ishiang (3300 Bahama St. Brossard ; Quebec CAX J4Z 2R4), Methods for roof, wall or floor leak detection.
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Vokey,David E.; Nassar,Hani, Moisture detection sensor tape with leak locate.
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Trescott, Robert, Non-invasive thermal dispersion flow meter with chronometric monitor for fluid leak detection.
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Lenoir ; Jr. Robert M. (1159 Doe Run Highland Lakes NJ 07422), Overflow protection shut-off apparatus for use with a water heater.
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Imaizumi Haruo (Ohmiya JPX), Sensor for detecting the presence and location of a water leak.
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Arnold G. Wyatt ; Robert L. Terry, Solid state liquid level sensor and pump controller.
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Dowling Donald C., System for control of fluid vessel overflows.
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Tom M. Dale (R.D. #1 Norwich OH 43767), Water detection device.
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Wendel A. Christopher (7169 154th Rd. North Palm Beach Gardens FL 33418) Freitag Steven E. (1598 Glendale Ave. NW. Palm Bay FL 32907), Wireless system for detecting and stopping water leaks.
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