Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Browse by Category: Main > Engineering
Class Information
Number: 137/315.23
Name: Fluid handling > With repair, tapping, assembly, or disassembly means > Assembling or disassembling rotary valve > Butterfly valve > Having valve head or seat packing
Description:










Patents under this class:

Patent Number Title Of Patent Date Issued
7225825 Valve seal and method of installing a valve seal Jun. 5, 2007
6497245 Intake air controller for internal combustion engine and manufacturing the same Dec. 24, 2002
5370148 Butterfly valve assembly and method of manufacture Dec. 6, 1994
5357997 Valve with segmented retainer ring Oct. 25, 1994
5284178 Butterfly valve Feb. 8, 1994
5018548 Segmented coupling for pipes May. 28, 1991
4967779 Method of installing a valve seat in a valve body Nov. 6, 1990
4899775 Corrosion-resistant overlay for the edge of butterfly valves Feb. 13, 1990
4844115 Butterfly valve Jul. 4, 1989
4699357 Reinforced industrial butterfly valve Oct. 13, 1987
4645180 Wire form type insert retainer for a wafer style butterfly valve Feb. 24, 1987
4575048 Insert retainer for a wafer style butterfly valve Mar. 11, 1986
4541612 Rotatable shaft assembly Sep. 17, 1985
4003394 Disc valve with improved seal ring Jan. 18, 1977











 
 
  Recently Added Patents
Control system for shifting an automatic transmission
System and method for detecting an earth ground fault of an external power supply connected to a vehicle
Tiered cost model for access to a computer network
Systems and methods for advertising on content-screened web pages
Plants and seeds of hybrid corn variety CH450823
Assay for the diagnosis of flaviviral infection using antibodies with high affinity for NS1 protein of flavivirusi in hexameric form
Terminal and method of controlling the same
  Randomly Featured Patents
Method for production of a flexible shaped strip
Method for manufacturing a printed board on which a semiconductor device having two modes is mounted
Method and system for modeling a system
Outdoor temperature sensing assembly
Helmet restraint system
Method and apparatus for power conversion and regulation
Medical electrode device having a non-gaseous fluid conductor
Method and apparatus for measuring pipeline corrosion
Enzymatic acylation to afford .beta.-lactam antibiotics
Semiconductor thin film and semiconductor device