Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Browse by Category: Main > Engineering
Class Information
Number: 137/489.3
Name: Fluid handling > Line condition change responsive valves > Pilot or servo controlled > Fluid pressure type > Choked or throttled pressure type > Loose fitting piston
Description: Devices in which the unvalved passage is between the piston and the cylinder walls.










Patents under this class:

Patent Number Title Of Patent Date Issued
6564827 Shut-off device for the filling device of a pressure tank May. 20, 2003
4651768 Servovalve for pipe flange connection Mar. 24, 1987
4366834 Back-flow prevention valve Jan. 4, 1983
4192344 Automatic emergency stop apparatus against counter flow and counter fire of gas bodies Mar. 11, 1980
3962884 Piloted freeze throttling valve Jun. 15, 1976
3942333 Suction throttling valve Mar. 9, 1976











 
 
  Recently Added Patents
Laser processing machine
Solid-state image capture device and image capture apparatus
Electrode composition with enhanced performance characteristics
Panel for decoration
Beaconing and superframe structure for millimeter wave wireless technologies
Protocol delay measuring device and protocol delay measuring method
Optimized control of an energy supplying system and an energy consuming system
  Randomly Featured Patents
Spatial light modulator
Image processing apparatus, method, and computer program product extracting information from operation history and registering workflow
Method and apparatus for detecting bent leads in electronic components
Bis-arylalkylamino-aralkanes
Cycloolefin resin composition
Overhead sound attenuating cover for roadways and railways
Bottle
Method and apparatus for beating fibre slurries
Aligning device for sheet finisher
Novel ureas