[특허]Warewash machine chemical sensor and related system and method

Warewash machine chemical sensor and related system and method 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	A47L-015/44 A47L-015/42 A47L-015/00
출원번호	US-0826480 (2013-03-14)
등록번호	US-9521941 (2016-12-20)
발명자 / 주소	Dickey, Larry M. Fischer, David L. Newcomer, Jeffrey R. Watson, Michael T. Prybor, Brian R. Anim-Mensah, Alexander R.
출원인 / 주소	PREMARK FEG L.L.C.
대리인 / 주소	Thompson Hine LLP
인용정보	피인용 횟수 : 0 인용 특허 : 58

초록 ▼

A flow through chemical sensor includes a housing having a through passage along which chemical can flow, a sidewall of the housing having first and second openings that communicate with the through passage. A first electrode is mounted on the housing and aligned with the first opening, the first electrode of a plate configuration with a unitary depression that extends through the first opening and to a peripheral edge of the through passage. A second electrode is mounted on the housing and aligned with the second opening, the second electrode of a plate configuration with a unitary depression that extends through the second opening and to the peripheral edge of the through passage. A method of detecting presence or absence of chemical is also provided.

대표청구항 ▼

1. A flow through chemical sensor, comprising: a housing having a through passage along which chemical can flow, a sidewall of the housing having first and second openings that communicate with the through passage;a first electrode mounted on the housing and aligned with the first opening, the first electrode of a plate configuration with a unitary depression that extends inward through the first opening and to at least a peripheral edge of the through passage such that an inwardly facing surface of the unitary depression can contact chemical flowing through the passage;a second electrode mounted on the housing and aligned with the second opening, the second electrode of a plate configuration with a unitary depression that extends inward through the second opening and to at least the peripheral edge of the through passage such that an inwardly facing surface of the unitary depression of the second electrode can contact chemical flowing through the passage. 2. The flow through chemical sensor of claim 1 wherein: a first o-ring is positioned between the housing and the first electrode and the first electrode is secured to the housing by way of a first fastener that provides a clamping force of the first electrode against the first o-ring for sealing, wherein the unitary depression of the first electrode extends through an opening of the first o-ring; anda second o-ring is positioned between the housing and the second electrode and the second electrode is secured to the housing by way of a second fastener that provides a clamping force of the second electrode against the second o-ring for sealing, wherein the unitary depression of the second electrode extends through an opening of the second o-ring. 3. The flow through chemical sensor of claim 2 wherein: the first electrode includes a first lead arm configured for connection with a wire terminal; andthe second electrode includes a second lead arm configured for connection with a wire terminal. 4. A warewash machine including the flow through chemical sensor of claim 1, wherein the flow through chemical sensor is located in a chemical feed line for delivering chemical directly or indirectly to a chamber of the machine. 5. The warewash machine of claim 4 wherein: the flow through chemical sensor is connected in a chemical detection circuit via the first and second electrodes;a controller of the machine is configured to apply a periodic excitation signal to the chemical detection circuit;the chemical detection circuit is configured so that the flow through chemical sensor attenuates the periodic excitation signal according to impedance level of the chemical such that a level of attenuation varies inversely with impedance of the chemical and the sensor causes little or no attenuation in the absence of the chemical;the controller further configured to evaluate the attenuated signal to determine the presence or absence of chemical and, in the absence of chemical to produce an operator alert. 6. The warewash machine of claim 5 wherein: the warewash machine includes a user interface that enables an operator to identify the chemical being used and the controller is configured to automatically define a frequency of the applied periodic excitation signal according to operator selection of the chemical being used. 7. A flow through chemical sensor, comprising: a housing having a through passage along which chemical can flow, a sidewall of the housing having first and second openings that communicate with the through passage;a first electrode mounted on the housing and aligned with the first opening, the first electrode of a plate configuration with a unitary depression that extends inward through the first opening and to a peripheral edge of the through passage;a second electrode mounted on the housing and aligned with the second opening, the second electrode of a plate configuration with a unitary depression that extends inward through the second opening and to the peripheral edge of the through passage;a first o-ring is positioned between the housing and the first electrode and the first electrode is secured to the housing by way of a first fastener that provides a clamping force of the first electrode against the first o-ring for sealing, wherein the unitary depression of the first electrode extends through an opening of the first o-ring; anda second o-ring is positioned between the housing and the second electrode and the second electrode is secured to the housing by way of a second fastener that provides a clamping force of the second electrode against the second o-ring for sealing, wherein the unitary depression of the second electrode extends through an opening of the second o-ring. 8. The flow through chemical sensor of claim 7 wherein: the first electrode includes a first lead arm configured for connection with a wire terminal; andthe second electrode includes a second lead arm configured for connection with a wire terminal.

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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

내보내기 구분	파일저장 인쇄 메일전송
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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

연합인증

Warewash machine chemical sensor and related system and method 원문보기

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Warewash machine chemical sensor and related system and method 원문보기

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