Resources Contact Us Home
Browse by Category: Main > Engineering
Class Information
Number: 137/247.13
Name: Fluid handling > With liquid valves or liquid trap seals > Liquid seal in liquid flow line; flow liquid forms seal > Valves
Description: Apparatus having a valve in the liquid flow line in or adjacent to the seal.

Sub-classes under this class:

Class Number Class Name Patents
137/247.15 Line condition change responsive 9

Patents under this class:

Patent Number Title Of Patent Date Issued
7854238 Conduit trap and condensation recovery device Dec. 21, 2010
6877306 Nozzle assembly with flow divider and ecology valve Apr. 12, 2005
6698225 Biased condensation trap Mar. 2, 2004
6632404 Automatically actuated parallel sample injector valve Oct. 14, 2003
6049031 Magnetic valve system for a musical instrument Apr. 11, 2000
5236137 Apparatus and method for garbage disposal cleaning Aug. 17, 1993

  Recently Added Patents
Process for the production of electric energy by the excitation and capture of electrons from ground or water sources
Light-emitting device, film-forming method and manufacturing apparatus thereof, and cleaning method of the manufacturing apparatus
Housekeeping cart
Semiconductor device and method of forming discontinuous ESD protection layers between semiconductor die
Electronic device package and fabrication method thereof
Data paths using a first signal to capture data and a second signal to output data and methods for providing data
Microporous membranes and methods for producing and using such membranes
  Randomly Featured Patents
Mold for container with recess-defining flange
Disk throwing game
Hardware-accelerated lossless data compression
Washing and foaming composition based on surface-active agents and anionic polymers
Printing apparatus of character wheel selection, stop and simultaneously printing type
Carbon fiber reinforced base material, preform and composite material comprising the same
Hollow fiber membrane contactor
Biomolecule retaining material and methods for attaching biomolecules to a surface
Jawed surgical instrument fitted with an electrode and a cable
Sliding arrow stabilizer