Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Browse by Category: Main > Engineering
Class Information
Number: 137/858
Name: Fluid handling > Line condition change responsive valves > Direct response valves (i.e., check valve type) > Resilient material valve > With valve member flexing about securement > Flap or reed > With weight
Description: Valve which, in addition to the restoring force of the resilient material is provided with a mass of material which due to the force of gravity acts to bias the resilient member towards its valve seat.










Patents under this class:

Patent Number Title Of Patent Date Issued
7556559 Control and pressure release valve Jul. 7, 2009
6592346 Compressor discharge valve Jul. 15, 2003
6468148 Exhaust ventilator Oct. 22, 2002
5848615 Check valve cartridge for fluid pump Dec. 15, 1998
5500663 Recording ink container with an air vent valve Mar. 19, 1996
5364244 Pump arrangement including flag type inlet valves with spherical seating Nov. 15, 1994
5355910 Dual component flap Oct. 18, 1994
5285816 One way valve Feb. 15, 1994
4702274 Quick disconnect for sewage system Oct. 27, 1987











 
 
  Recently Added Patents
Phosphor, light emitting apparatus, and liquid crystal display apparatus using the same
Methods and devices for multiple-mode radio frequency synthesizers
Systems, methods, and media for firewall control via remote system information
Dynamic load profiling in a power network
Method and system for remapping processing elements in a pipeline of a graphics processing unit
Geographically self-labeling access points
Printing apparatus and method of operation of a printing apparatus
  Randomly Featured Patents
Fabrication method of semiconductor device
Filled thermoplastic
Methods, systems and devices for optimizing cardiac pacing parameters
Continuously adjustable neutral density area filter
Method and system for vaporizing liquefied natural gas with optional co-production of electricity
Bicycle wheel with battery powered safety lights
Use of flavonoids to treat multidrug resistant cancer cells
Separating gas using immobilized buffers
Mineral oil gels
Semiconductor device