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Class Information
Number: 137/541
Name: Fluid handling > Line condition change responsive valves > Direct response valves (i.e., check valve type) > Reciprocating valves > Spring biased > Spring coaxial with valve > Spring in inlet
Description: Valves in which the spring is located on the side of the valve which is exposed to the fluid pressure to which the valve is to be responsive, i.e., the spring and valve are on opposite sides of the valve seat and the spring is in the fluid conduit or container.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 8534326 |
Metering pump assembly |
Sep. 17, 2013 |
| 8393156 |
Variable performance valve of a fuel nozzle for a turbine engine |
Mar. 12, 2013 |
| 8360105 |
Air admittance vent |
Jan. 29, 2013 |
| 8205630 |
Low pressure relief valve and method of manufacturing same |
Jun. 26, 2012 |
| 7959045 |
Spout assembly and method of manufacturing packaging bag provided with spout assembly |
Jun. 14, 2011 |
| 7891374 |
Suction valve |
Feb. 22, 2011 |
| 7658405 |
Apparatus and method for providing extended inflator output |
Feb. 9, 2010 |
| 7195029 |
Inflate and deflate valve |
Mar. 27, 2007 |
| 7174910 |
Valve core |
Feb. 13, 2007 |
| 7128088 |
Backflow preventer |
Oct. 31, 2006 |
| 7066201 |
Valve device having solid engaging structure |
Jun. 27, 2006 |
| 7036523 |
Serviceable check valve |
May. 2, 2006 |
| 6994108 |
Check valve for fuel pump |
Feb. 7, 2006 |
| 6929023 |
Back flow prevention device for pipelines conveying fluids |
Aug. 16, 2005 |
| 6923202 |
Modular pressure relief valve |
Aug. 2, 2005 |
| 6904933 |
Enclosure for outdoor equipment |
Jun. 14, 2005 |
| 6892757 |
Hydraulic valve |
May. 17, 2005 |
| 6877525 |
Check valve for fuel pump |
Apr. 12, 2005 |
| 6835053 |
Check valve |
Dec. 28, 2004 |
| 6830064 |
Leak control valve |
Dec. 14, 2004 |
| 6736162 |
Pressure relief valve with improved repairability |
May. 18, 2004 |
| 6695007 |
Suction valve |
Feb. 24, 2004 |
| 6581633 |
Check valve and method of fabrication |
Jun. 24, 2003 |
| 6513556 |
Flexible hose passive shut down system |
Feb. 4, 2003 |
| 6497248 |
Pressure relief device with one piece gasket |
Dec. 24, 2002 |
| 6470911 |
Check valve and fuel tank with check valve attached thereto |
Oct. 29, 2002 |
| 6367501 |
Anti-geyser shut-off valve assembly |
Apr. 9, 2002 |
| 6328883 |
Fuel filter assembly with priming pump |
Dec. 11, 2001 |
| 6257503 |
Dispenser head and receptacle fitted therewith |
Jul. 10, 2001 |
| 6224350 |
Radial piston pump for high-pressure fuel delivery |
May. 1, 2001 |
| 6187182 |
Filter cartridge assembly for a gas purging system |
Feb. 13, 2001 |
| 6183224 |
Airless paint sprayer intake dampener |
Feb. 6, 2001 |
| 6098623 |
Pressure-limiting valve wherein valve plate oscillations are prevented |
Aug. 8, 2000 |
| 6050295 |
High flow valved fitting |
Apr. 18, 2000 |
| 5979408 |
Fuel injection system |
Nov. 9, 1999 |
| 5975061 |
Bypass fuel pressure regulator |
Nov. 2, 1999 |
| 5971016 |
Super high flow pressure relief valve |
Oct. 26, 1999 |
| 5947784 |
Apparatus for producing toroidal bubbles and method |
Sep. 7, 1999 |
| 5919033 |
Pump having relief valve seat free of direct structural restraint |
Jul. 6, 1999 |
| 5688113 |
Piston for a piston pump with a two part inlet valve body |
Nov. 18, 1997 |
| 5662140 |
Internally mounted high pressure hydraulic valve for vehicularly mounted water receiving tanks |
Sep. 2, 1997 |
| 5639219 |
Airless paint sprayer intake dampener and inlet valve spring |
Jun. 17, 1997 |
| 5617893 |
Vacuum relief valve |
Apr. 8, 1997 |
| 5588817 |
Pressure-medium-traversed piston of a reciprocating piston pump |
Dec. 31, 1996 |
| 5544673 |
Method and arrangement for assembling fuel injection nozzles |
Aug. 13, 1996 |
| 5472013 |
Fuel injection nozzle |
Dec. 5, 1995 |
| 5465752 |
Multi-function valve for a riser in a sprinkler system |
Nov. 14, 1995 |
| 5443092 |
Fluid flow valve device and assemblies containing it |
Aug. 22, 1995 |
| 5356270 |
Ultra high vacuum cryopump relief valve assembly |
Oct. 18, 1994 |
| 5240040 |
Mixing valve |
Aug. 31, 1993 |
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