Resources Contact Us Home
Browse by Category: Main > Engineering
Class Information
Number: 137/516.19
Name: Fluid handling > Line condition change responsive valves > Direct response valves (i.e., check valve type) > Single head, plural ports in parallel > Annular head > Central post on seat > Stop
Description: Valves wherein the post provides a valve stop or support such a stop.

Sub-classes under this class:

Class Number Class Name Patents
137/516.21 With guide 26

Patents under this class:

Patent Number Title Of Patent Date Issued
8240330 Squeeze film damper valve for compressor cylinders Aug. 14, 2012
5785081 Compressor inlet valve Jul. 28, 1998
5678603 Plate valve, particularly for piston compressors Oct. 21, 1997
4869289 Adjustable compressor valve which can accommodate changing operating conditions in the compressor to which it is attached Sep. 26, 1989
4858736 Shock absorber for a hydropneumatic vehicle suspension element Aug. 22, 1989
4360319 Compressor Nov. 23, 1982
4307751 Plate valve Dec. 29, 1981
4184818 Valve for piston compressors and pumps Jan. 22, 1980

  Recently Added Patents
Automated synchronization of design features in disparate code components using type differencing
Cable preparation tool
Method and apparatus for organizing segments of media assets and determining relevance of segments to a query
Advertisement in operating system
Method and apparatus for image sensor packaging
Switch redundancy in systems with dual-star backplanes
Embedded bonding pad for image sensors
  Randomly Featured Patents
High-speed processor system having bus arbitration mechanism
Magnetic disc storage devices having compensation for dimensional changes
Earpiece, telephone handset and headphone intended to correct individual hearing deficiencies
Semiconductor device with DDR memory controller
Method for separating slag and nonmetallic particles during molten metal teeming operations using meltable dam
Light scanning device and confocal optical device using the same
Track for a land vehicle
Electrophotographic apparatus with pre-exposure controlled according to photoconductor thinning
Profiling control system for given curved surface
Dual-compartment ventilation and air-conditioning system having a shared heating coil