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Class Information
Number: 251/36
Name: Valves and valve actuation > Fluid actuated or retarded > Pilot or servo type motor > Choked pressure type servo motor > With separate dashpot or choked fluid retarding chamber
Description: Subject matter in which an expansible chamber, other than or in addition to the servo-motor chamber, is provided with a restricted passage to retard the rate of travel of the main valve.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 6286533 |
Metering valve assembly |
Sep. 11, 2001 |
| 6076798 |
Fluid actuating valve |
Jun. 20, 2000 |
| 6073651 |
Damped valve |
Jun. 13, 2000 |
| 6041809 |
Two stage flush control valve assembly |
Mar. 28, 2000 |
| 6027037 |
Accumulator fuel injection apparatus for internal combustion engine |
Feb. 22, 2000 |
| 5873561 |
Two-port cartridge seat valve |
Feb. 23, 1999 |
| 5839661 |
Solenoid valve and fuel injector for internal combustion engine using the same |
Nov. 24, 1998 |
| 5505427 |
Flushometer handle seal |
Apr. 9, 1996 |
| 5294090 |
Valve snubber |
Mar. 15, 1994 |
| 5213304 |
Valve |
May. 25, 1993 |
| 5048790 |
Self-modulating control valve for high-pressure fluid flow |
Sep. 17, 1991 |
| 4875501 |
Electromagnetic proportional control valve apparatus |
Oct. 24, 1989 |
| 4832310 |
Flush control valve |
May. 23, 1989 |
| 4799645 |
Pilot operated hydraulic control valve |
Jan. 24, 1989 |
| 4785851 |
Vacuum security valve having a buffer volume |
Nov. 22, 1988 |
| 4699351 |
Pressure responsive, pilot actuated, modulating valve |
Oct. 13, 1987 |
| 4610423 |
Poppet valve |
Sep. 9, 1986 |
| 4482127 |
Valve structure |
Nov. 13, 1984 |
| 4390037 |
Gas regulation device for gas actuated valves |
Jun. 28, 1983 |
| 4309021 |
Valve structure |
Jan. 5, 1982 |
| 4282895 |
Freeze-proof, pollution free valve |
Aug. 11, 1981 |
| 4282895 |
Freeze-proof, pollution free valve |
Aug. 11, 1981 |
| 4227674 |
Liquid metering valve |
Oct. 14, 1980 |
| 4190230 |
Scavenging air valve for cleaning tubular air filter bodies |
Feb. 26, 1980 |
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