Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Browse by Category: Main > Engineering
Class Information
Number: 137/630.21
Name: Fluid handling > Systems > Sequentially progressive opening or closing of plural valves > Lost motion > Rotary concentric valves
Description: Systems in which the valves rotate about a common axis, one valve having relative motion with respect to and within the other, and having a lost motion connection between one of the valves and the actuator, or the other valve.










Patents under this class:

Patent Number Title Of Patent Date Issued
6192922 Airflow control valve for a clean room Feb. 27, 2001
4836163 Throttle-butterfly connector piece for an internal combustion engine Jun. 6, 1989
4662394 Tight shut-off valve with flow control element May. 5, 1987
4577662 Plug valve equipped with pressure equalization means Mar. 25, 1986











 
 
  Recently Added Patents
High performance design rule checking technique
High porosity ceramic honeycomb article containing rare earth oxide and method of manufacturing same
Method and apparatus for managing network traffic
Device and implantation system for electrical stimulation of biological systems
Package for product
Method and apparatus for belling plastic pipe
Key management system
  Randomly Featured Patents
Accessing stored data objects using contact data corresponding to a remote communications party
Modified galactomannan ethers
Adaptive slope compensation for switching regulators
Arrangement for detecting quenches in superconducting coils
Sectional sofa
BR*-diagnostics for monoamine receptors
Process for production of amino acid hydrochloride and caustic via electrodialysis water splitting
Identification tag and anchor for use in displaying indicia including graphics and text
Rake
Method and device for controlling and inputting data