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Class 73/251 - With trip gear


Subclass of Class 73 - Measuring and testing
Definition: Meters wherein the distributing valves are actuated by a
No. of patents: 6
Last issue date: 05/22/2007


NumberTitleIssue Date
7221281Apparatus for flow detection, measurement and control and method for use of same
A flow sensor having an inlet and an outlet comprising: a plate moving in response to fluid flow therethrough, being displaced further as flow increases; a sensor for determining moving plate's position and creating an electronic signal related thereto; a biasing de...
05/22/2007
6914531Apparatus for flow detection, measurement and control and method for use of same
A flow sensor having an inlet and an outlet comprising: a plate moving in response to fluid flow therethrough, being displaced further as flow increases; a sensor for determining moving plate's position and creating an electronic signal related thereto; a biasing me...
07/05/2005
6741179Apparatus for flow detection, measurement and control and system for use of same
An improvement flow sensor of the type having inlet and outlet ports, a moving plate unit for moving in response to fluid flow through the sensor, a sensor unit for sensing the movement of the moving plate and creating a signal related to its location, and biasing u...
05/25/2004
6333695Apparatus for flow detection, measurement and control and method for use of same in a fire sprinkler system
An apparatus for flow detection, measurement and control and method for use of same in a piping and/or fire sprinkler system. The apparatus combines a flow sensor for creating an electrical output proportional to flow through therethrough with a bypass me...
12/25/2001
6239708Apparatus for water flow measurement
An apparatus for a flow-based fire alarm. A bypass system is provided to allow sufficient water flow where a pressure drop, particularly in a residential or multi-purpose piping system such as a water softener is encountered, by providing an alternate, lo...
05/29/2001
4096747Digital output, positive displacement flow meter
A positive displacement, reciprocating fluid flow meter produces a digital electrical output signal. The meter includes a piston which reciprocates within a cylinder for accurately measuring fuel flow rates over a wide range of rates. The device is partic...
06/27/1978
 
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