Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Browse by Category: Main > Engineering
Class Information
Number: 137/285
Name: Fluid handling > Hydrant type > Removable valve with supplemental check valve
Description: Apparatus in which the main valve is arranged to be removable, and a supplemental check valve is provided, biased closed by a spring or by fluid pressure and normally held open by a projection on the main valve or its actuator when the main valve is in place.










Patents under this class:

Patent Number Title Of Patent Date Issued
7249609 Yard hydrant with closure valve check valve Jul. 31, 2007
5404734 Secure locking arrangement Apr. 11, 1995
4127142 Slow close hydrant check valve Nov. 28, 1978
4120314 Remote actuated flush valve Oct. 17, 1978











 
 
  Recently Added Patents
Color image display device, color filter substrate, color pixel array substrate, and electronic device
Titanium compounds and complexes as additives in lubricants
Method of making a CIG target by cold spraying
Pixel structure of a solid-state image sensor employing a charge sorting method
System and method for conditionally sending a request for data to a home node
Image processing apparatus and method having defective pixel detection and correction ability
Portable computer display structures
  Randomly Featured Patents
Side injection fiber optic coupler
Programmable digital phase control apparatus
Exposure apparatus
Hybrid water sport apparatus
Optical mirror coated with organic superconducting material
Method and apparatus for routing voice traffic over a residential gateway
Method of forming metal-oxide-semiconductor transistors
Efficient reduced complexity windowed optimal time domain equalizer for discrete multitone-based DSL modems
Stable conducting polymer and processes for the preparation thereof
Structured body for an anode used in fuel cells