Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Browse by Category: Main > Engineering
Class Information
Number: 137/247.17
Name: Fluid handling > With liquid valves or liquid trap seals > Liquid seal in liquid flow line; flow liquid forms seal > Valves > Line condition change responsive > Plural valves or valve seats
Description: Apparatus having a plurality of line condition responsive valves or having such a valve which seats alternatively on one of a plurality of seats.










Patents under this class:

Patent Number Title Of Patent Date Issued
7735805 Water control valve Jun. 15, 2010
6689007 Manual valve for automatic transmission Feb. 10, 2004
6273639 Method and apparatus for facilitating migration of fish past dams and other barriers in waterways Aug. 14, 2001
5743884 Sealing structure for medical instrument Apr. 28, 1998
4749658 Two-way valve for blood analyzing apparatus Jun. 7, 1988
4459983 Breathing apparatus for reanimation of newborns Jul. 17, 1984
4046161 Non-return valve for preventing back flow of waste waters Sep. 6, 1977











 
 
  Recently Added Patents
Amplitude-shift-keying (ASK) envelope detector and demodulation circuits
Catalyst and process of hydrocarbon feedstock reformation to hydrogen and carbon monoxide
Servomotor control circuit
Fabrication of thin pellicle beam splitters
Steering wheel
System and method for transferring data in storage controllers
Fixing device, fixing device control method, and image forming apparatus
  Randomly Featured Patents
Production of a fermentation product from a composite material
Tube and support system for a heat exchanger
Fixed-focus lens module
Safety covering for guide rails
Intermediate semiconductor device structures
Oil containment boom
Power supply independent temperature sensor
Drag reduction of asphaltenic crude oils
Gear transmission in a lifting machinery
Layered body for the absorption of liquids and its production