Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Browse by Category: Main > Engineering
Class Information
Number: 137/315.29
Name: Fluid handling > With repair, tapping, assembly, or disassembly means > Assembling or disassembling reciprocating valve > Gate valve
Description:










Sub-classes under this class:

Class Number Class Name Patents
137/315.3 Bifaced 19
137/315.31 Having particular valve seat 10


Patents under this class:

Patent Number Title Of Patent Date Issued
8627843 Gate valve assembly for installation in pressurized pipes Jan. 14, 2014
7731242 Pipe clamp with built in test fitting Jun. 8, 2010
7628381 Method for replacing seals in recreational vehicles gate valves without removing valve housing from plumbing Dec. 8, 2009
7445019 Gate valve having service position Nov. 4, 2008
6983759 Valve and method for repairing a valve under pressure Jan. 10, 2006
6843889 Coke drum bottom throttling valve and system Jan. 18, 2005
6679283 Valve inspection chamber Jan. 20, 2004
6050541 Pneumatic valve actuator assembly Apr. 18, 2000
5878769 Maintenance method and maintenance kit for a gate valve Mar. 9, 1999
5743288 Valve having provision for replacing stem packing while the valve is under pressure Apr. 28, 1998
5312087 Low torque back seating stem for gate valve May. 17, 1994
5038817 Narrow accessway liquid sewage pump remotely operable multi-part quick connect/disconnect slide coupling Aug. 13, 1991
4909272 Gate valve Mar. 20, 1990
4800917 Fluid actuated gate valve assembly Jan. 31, 1989
4744386 Modular hydraulic actuator May. 17, 1988
4671313 Slide valve Jun. 9, 1987
4671312 Wireline cutting actuator and valve Jun. 9, 1987
4615506 Slide valve Oct. 7, 1986
4561471 Washing machine rinse-water diverter valve Dec. 31, 1985
4456026 Control device particularly useful as manual slide valve Jun. 26, 1984
4423748 Emergency shut down device Jan. 3, 1984
4408627 Exhaust brake valve unit Oct. 11, 1983
4231389 Removable operator for gate valves Nov. 4, 1980
4220269 Slide gate nozzle for a casting vessel Sep. 2, 1980
4141378 Pressure pipeline structure and method Feb. 27, 1979
3993284 Connection of actuator cylinder housing to valve bonnet Nov. 23, 1976











 
 
  Recently Added Patents
Illuminating waveguide fabrication method
Systems and methods for computer-aided fold detection
Liquid dispensing apparatus
Fused thiazole derivatives as kinase inhibitors
Clock generator circuit for a charge pump
Coordinated multi-point transmission in a cellular network
Near-field optical disk having surface plasmon amplification by stimulated emission of radiation
  Randomly Featured Patents
Image recording apparatus with prioritization of input
Semiconductor CMOS devices and methods with NMOS high-k dielectric formed prior to core PMOS dielectric formation
Error control system
Control system utilizing virtual belt holes
Software and method for utilizing a generic database query
Process for the manufacture of a flexible polymeric structure by extrusion and the flexible structure manufactured therefrom
Adaptable spring force clamping apparatus and methods
Transfer device for a radial tire second stage assembly
Low-noise programmable current source
Integrated circuit package having interchip bonding and method therefor