Class 236/85 - Pressure-operated

Subclass of Class 236 - Automatic temperature and humidity regulation
Definition: Devices wherein the relay is operated by a device responsive
No. of patents: 2
Last issue date: 07/19/2011

Number	Title	Issue Date
7980481	Thermally controlled process interface A field device is coupled to a process through at least one process interface element. The process interface element may be a field device flange, a manifold, or a process flange. The process interface element has a temperature sensor attached thereto, and is adapte...	07/19/2011
4756474	Duct pressure powered air volume controller A duct pressure powered air volume controller controls the flow through a terminal responsive to the differential pressure across a nozzle plate, the selected ventilation requirements, and the temperature of the supplied air, the zone and the setpoint....	07/12/1988

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