Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Browse by Category: Main > Engineering
Class Information
Number: 137/207.5
Name: Fluid handling > Diverse fluid containing pressure systems > Gas pressure storage over or displacement of liquid > With return of liquid to supply
Description: Apparatus in which the liquid in one part of the system is allowed to flow back, is forced back, or is by-passed back to the source of supply, in order to empty the system for cleaning, storage, etc.










Patents under this class:

Patent Number Title Of Patent Date Issued
8230613 Clothes treating apparatus Jul. 31, 2012
5803111 Device for purging water supply line Sep. 8, 1998
5660530 Pump system for biasing seals of a centrifugal pump Aug. 26, 1997
5257608 Device in a fuel system for an internal combustion engine Nov. 2, 1993
4799864 Hydro-pneumatic pumpsets Jan. 24, 1989
4475876 Oil purge system for cold weather shutdown of oil flooded screw compressor Oct. 9, 1984
4274405 Method for varying the ambient pressure in a vessel Jun. 23, 1981
4072168 Dual standpipe arrangement supplementing a water supply system Feb. 7, 1978











 
 
  Recently Added Patents
End-of-session authentication
Method for assembling a camera module, and camera module
Analog-to-digital converter with input voltage biasing DC level of resonant oscillator
System and method for distributing emergency data messages to public safety answering points in a balanced manner
Device and method for generating soft tissue contrast images
Treatment of cancer using the sodium salt of a benzoic acid derivative
Electron-beam lithography method with correction of line ends by insertion of contrast patterns
  Randomly Featured Patents
Single wafer dryer and drying methods
Method or system for investing and/or trading
Data adapting device, data adapting method, storage medium, and program
Semiconductor manufacturing apparatus and manufacturing of a semiconductor device
Composition for the preparation of bone cement
Vehicle slip control system
Device for conveying a continuous shingled sheet stream
Apparatus and methods for displaying and determining dependency relationships among subsystems in a computer software system
Electrolyte for a nonaqueous battery
Fastener or the like