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Class Information
Number: 137/493.4
Name: Fluid handling > Line condition change responsive valves > Bi-directional flow valves > One head and seat carried by head of another > Supporting valve spring carried by supporting valve > Spring stop on supported valve stem
Description: Apparatus wherein the spring of the carried valve abuts a stop (e.g., a collar) on the carried valve stem.
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| Patent Number |
Title Of Patent |
Date Issued |
| 8561637 |
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Oct. 22, 2013 |
| 8469051 |
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| RE41861 |
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| 7073527 |
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| 6910502 |
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| 6805161 |
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| 6305412 |
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| 6279247 |
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Aug. 28, 2001 |
| 6196258 |
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| 6142167 |
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Nov. 7, 2000 |
| 6056029 |
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May. 2, 2000 |
| 5402818 |
Fuel shut-off device |
Apr. 4, 1995 |
| 5378118 |
Cartridge assembly with orifice providing pressure differential |
Jan. 3, 1995 |
| 5307831 |
Safety relief valve for pressure vessels |
May. 3, 1994 |
| 5282492 |
Dual valve plate two-way pressure relief valve |
Feb. 1, 1994 |
| 5226442 |
Vacuum/pressure release valve |
Jul. 13, 1993 |
| 4691734 |
Valve seals |
Sep. 8, 1987 |
| 4460013 |
Pressure-vacuum vent |
Jul. 17, 1984 |
| 4300591 |
Anti-cavitation and overload relief valve for a hydraulic system |
Nov. 17, 1981 |
| 4212315 |
Shroud for pressure vacuum vent |
Jul. 15, 1980 |
| 4210170 |
Anti-cavitation and overload relief valve for a hydraulic system |
Jul. 1, 1980 |
| 4153073 |
Liquid dispensing and vapor recovery system and valve assembly utilized therein |
May. 8, 1979 |
| 4079855 |
Monolithic radiator cap for sealed pressurized cooling system |
Mar. 21, 1978 |
| 3971406 |
Vapor fuel control apparatus |
Jul. 27, 1976 |
| 3939866 |
Fuel saving device |
Feb. 24, 1976 |
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