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Class Information
Number: 251/227
Name: Valves and valve actuation > Mechanical movement actuator > Plural motions of valve > Biased > Spring
Description: Devices in which the biasing means is a spring.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7086636 |
Gaseous fluid metering valve |
Aug. 8, 2006 |
| 6997434 |
Twist cam valve |
Feb. 14, 2006 |
| 6978979 |
Isolating device |
Dec. 27, 2005 |
| 6613096 |
Prosthetic pressure relief valve system |
Sep. 2, 2003 |
| 6540212 |
Carburetor valve rotational setting retainer assembly |
Apr. 1, 2003 |
| 6488264 |
Governor valve device in a pressure fluid operated tool |
Dec. 3, 2002 |
| 6402124 |
Carburetor fuel mixture adjustment assembly |
Jun. 11, 2002 |
| 6003845 |
Fuel mixture adjusting and limiting device |
Dec. 21, 1999 |
| 5727507 |
Valve rotation arrangement |
Mar. 17, 1998 |
| 5570663 |
Valve rotator |
Nov. 5, 1996 |
| 5249773 |
Fluid flow regulating valve |
Oct. 5, 1993 |
| 5195719 |
Butterfly valves with actuators carried on valve plate |
Mar. 23, 1993 |
| 4770392 |
Shut-off device for pipes |
Sep. 13, 1988 |
| 4568499 |
Carburetor with self seating needle valve |
Feb. 4, 1986 |
| 4058237 |
Portable self-protective device |
Nov. 15, 1977 |
| 3988001 |
Variable flow control valve for use with dental syringes and the like |
Oct. 26, 1976 |
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