Resources Contact Us Home
Browse by Category: Main > Engineering
Class Information
Number: 137/115.12
Name: Fluid handling > Self-proportioning or correlating systems > Self-controlled branched flow systems > Bypass or relief controlled by main line fluid condition > Flow rate responsive > Flapper
Description: Subject matter wherein the sensor includes a member supported at one end and moving by the momentum of the fluid in the flow line to operate the bypass or relief valve.

Patents under this class:

Patent Number Title Of Patent Date Issued
6415809 Fluidic valve assemblies having improved fluidic valve mechanisms, and devices operable therewith Jul. 9, 2002
5669405 Apparatus and method for automatically disabling pressure relief valve of backflow preventer Sep. 23, 1997
5150876 Servo valve Sep. 29, 1992
4966198 Metering arrangement Oct. 30, 1990

  Recently Added Patents
Field device for determining or monitoring a physical or chemical process variable
Probe for ultrasound diagnostic apparatus
Geographically self-labeling access points
Communication apparatus and communication system
Pattern data conversion for lithography system
Image forming unit having agitating portion and image forming apparatus
Remote ignition system for a vehicle and method for securing a remote ignition function
  Randomly Featured Patents
Parallax compensation
Method of forming a transistor having gate protection and transistor formed according to the method
Golf cart
Electromagnetic contactor
Rotating dobby for weaving loom and weaving loom equipped with such a dobby
Preparation of cyclododecene
Smart card reader
Image recording apparatus
Thermal storage and transfer device
Automatic filling device for fibre cartridge and/or fibre cassettes of brush manufacturing machines