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Class Information
Number: 137/78.5
Name: Fluid handling > Ambient condition change responsive > Atmospheric
Description: Apparatus in which control of a flow of fluid is responsive to a variation in a condition of, or in surrounding atmosphere.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7306167 |
Light-activated mist sprayer system |
Dec. 11, 2007 |
| 7299817 |
Passive, double acting, vacuum actuated vent valve |
Nov. 27, 2007 |
| 7059338 |
Emergency shutoff valve |
Jun. 13, 2006 |
| 6598243 |
Wind operated actuator for swimming pools |
Jul. 29, 2003 |
| 6374850 |
Emergency gas line shut-off system |
Apr. 23, 2002 |
| 6199573 |
Gas flow arrestor |
Mar. 13, 2001 |
| 6145755 |
Supplemental irrigation programmer |
Nov. 14, 2000 |
| 5975106 |
Rotary actuator valve closure apparatus |
Nov. 2, 1999 |
| 5823433 |
Wind governed sprinkler control system |
Oct. 20, 1998 |
| 5755250 |
Manifold and valve assembly for a smoke/pollution detection system |
May. 26, 1998 |
| 5722448 |
Gas line automatic cut off valve |
Mar. 3, 1998 |
| 5694960 |
Hazardous gas protection system and method for automatic valve closure |
Dec. 9, 1997 |
| 5620025 |
Multi-port valve |
Apr. 15, 1997 |
| 5584312 |
Fire damper for ceiling diffuser |
Dec. 17, 1996 |
| 5579801 |
Valve closing mechanism |
Dec. 3, 1996 |
| 5570030 |
Moisture sensor and control system |
Oct. 29, 1996 |
| 5424649 |
Soil moisture sensor |
Jun. 13, 1995 |
| 5002101 |
Hose draining and recovery system |
Mar. 26, 1991 |
| 4995415 |
Partially flooded gas appliance safety shut-off method and apparatus |
Feb. 26, 1991 |
| 4739789 |
Liquid flow control valve |
Apr. 26, 1988 |
| 4275754 |
Automatic valve actuator |
Jun. 30, 1981 |
| 4135540 |
Manual or automatic drainage device for downspouts |
Jan. 23, 1979 |
| 4064706 |
Evaporative roof cooling system |
Dec. 27, 1977 |
| 3955186 |
Character image generation apparatus and CRT phototypesetting system |
May. 4, 1976 |
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