Class 236/81 - Snap-acting

Subclass of Class 236 - Automatic temperature and humidity regulation
Definition: Devices in which the relay does not operate on slight changes
No. of patents: 2
Last issue date: 05/23/1989

Number	Title	Issue Date
4832260	Emergency ventilation system An apparatus and method for controlling emergency ventilation of a liverstock building comprising an environment sensor (12), air operated trip mechanism (14), and a source(10) of compressed air. The trip mechanism (14) is connected to open or close doors...	05/23/1989
3955791	Pilot operated fluid control valve A valve body includes a base section having an inlet and an outlet and means forming a valve seat therebetween. A flexible diaphragm is supported for movement relative to the valve seat and includes a center by-pass port which is opened and closed by a va...	05/11/1976

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