Class 337/308 - Individually responsive to diverse conditions or of diverse characteristics

Subclass of Class 337 - Electricity: electrothermally or thermally actuated switches
Definition: Subject matter including at least two or more expansible
No. of patents: 4
Last issue date: 03/10/1987

Number	Title	Issue Date
4648246	Arrangement for determining the difference between differing and changing temperatures for activating a control, regulating, measuring or recording process and the application of the arrangement in a heat counter The interior of two metallic bellows is in fluid connection through capillary tubes with temperature sensors. The temperature sensors are located in places whose relative temperature difference should be determined. In the presence of a temperature differ...	03/10/1987
4617803	Temperature responsive control units A temperature controlled switching device in which a first fluid filled temperature sensor responding to the temperature of heating or cooling means moves a first lever. A second sensor sensing the room temperature moves a second lever. The two levers bei...	10/21/1986
4202492	Air circulation system An air circulation system including an enclosure, air circulating devices for conveying ambient temperature air into the enclosure, actuating apparatus for the air circulating devices including a supporting frame, an upwardly extending support member adja...	05/13/1980
4055828	Condition responsive control device A control device having a housing carrying a condition responsive unit and an electrical switch to be operated by the condition responsive unit, the housing having a pivotally mounted lever to translate motion from a movable wall of the condition responsi...	10/25/1977

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