Resources Contact Us Home
Browse by Category: Main > Engineering
Class Information
Number: 137/270.5
Name: Fluid handling > Convertible > Unit orientable in a single location between plural positions > Reversible stop and vent or waste
Description: Devices comprising stop and vent or waste valve units having means to associate the waste port with either principal port.

Patents under this class:

Patent Number Title Of Patent Date Issued
5775199 Rotary valve and directional valve combination Jul. 7, 1998
4974625 Four mode pneumatic relay Dec. 4, 1990
4848392 Solenoid on-off valve Jul. 18, 1989

  Recently Added Patents
Sharing networks determined by sharing of items between individuals
Visually tracking an object in real world using 2D appearance and multicue depth estimations
Light-reflective anisotropic conductive paste and light-emitting device
Flame retardant thermoplastic elastomers
Composition comprising a mixture of dextro- and levo-amphetamines complexed with ion-exchange resin particles to form drug resin particles
System and method of error reporting in a video distribution network
Comparison of visual information
  Randomly Featured Patents
Facsimile system
Modular shader architecture and method for computerized image rendering
Image display system
Flexible printed wiring board arrangement of an imaging device
Omega cycloalkyl prostaglandins
Pulse-width-modulating feedback control of electromagnetic actuators
Light energy conversion
Composition containing and method of using a fibrinolytic active principle
Organic matter digester