发明名称 |
TEMPERATURE CONTROL AND INDICATING ARRANGEMENT |
摘要 |
A temperature control and indicating arrangement comprises an electric heating element; a thermostat connected in series with the heating element and responsive to the heat generated thereby; and structure responsive to the operation of the thermostat for indicating when the temperature in the region of the thermostat reaches a value determined by the thermostat. Included are a resettable electronic counter; a circuit for resetting the counter each time a power supply is connected to the arrangement; a detector for detecting cyclically repetitive switching operations of the thermostat and for causing the counter to count such operations immediately following each resetting of the counter; and counter-stop circuit for stopping the counter at a given count position corresponding to a count value greater than unity. The indicating structure includes a visual indicator electrically coupled to the counter to provide a visible indication when the counter is in the given count position. |
申请公布号 |
DE3569645(D1) |
申请公布日期 |
1989.05.24 |
申请号 |
DE19853569645 |
申请日期 |
1985.01.16 |
申请人 |
PHILIPS ELECTRONIC AND ASSOCIATED INDUSTRIES LIMITED;N.V. PHILIPS' GLOEILAMPENFABRIEKEN |
发明人 |
EASTHILL, STEPHEN PAUL |
分类号 |
G05B23/02;D06F39/04;D06F75/26;G05D23/19;G05D23/275;(IPC1-7):H05B1/02;G05D23/00;G08B17/06 |
主分类号 |
G05B23/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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