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특허 상세정보

MyON담기
내보내기 페이스북 공유 카카오톡 공유

Sensor operated water flow control

특허상세정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) F16K-031/02   
미국특허분류(USC) 137/62411 ; 251/12904 ; 251/12915 ; 4/623
출원번호 US-0137065 (1987-12-23)
발명자 / 주소
출원인 / 주소
인용정보 피인용 횟수 : 97  인용 특허 : 2
초록
▼

A sensor activated unit, e.g., a drinking fountain or a wash basin, for preventing unwanted operation. The sensor has a power on reset circuit that makes use of a resistor capacitor network and a voltage threshold comparing device to create a time delay that will inhibit the operation of the unit for a nominal predetermined time period when current is first supplied to the sensor. The sensor does not activate until a user steps up to the unit and is within a preset range or distance from the unit. Use is made of an infrared sensor for controlling the ope...

대표
청구항
▼

A system for controlling the flow of water through water supply means, including: a sensor operatively associated with said water supply means to cause water to be supplied by said water supply means; a first control circuit coupled with said sensor for sensing and determining the continued external activation characteristic of the presence of a user or external activation proximate to said sensor and within the range of energization of said sensor and the absence of the characteristic of external activation or presence of a user; a second control circui...

이 특허에 인용된 특허 (2)

  1. Hill Stephen A. (8 Heatherbrae Avenue South Caulfield ; Victoria AUX). Faucet system. USP1987074682628.
  2. Shepherd Philip E. (5608 Melody Lake Dr. Edina MN 55436) Johnson Gregory R. (4940 173rd Ave. NE. Ham Lake MN 55304). Liquid sensor and touch control for hydrotherapy baths. USP1988014716605.

이 특허를 인용한 특허 피인용횟수: 97

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