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Class Information
Number: 137/78.1
Name: Fluid handling > Ambient condition change responsive
Description: Apparatus which controls a flow of a fluid in response to a variation in a condition of, or in the surrounding environment.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7331345 |
Demand regulator protective bellows |
Feb. 19, 2008 |
| 7306167 |
Light-activated mist sprayer system |
Dec. 11, 2007 |
| 7238325 |
Very small chemical device and flow rate adjusting method therefor |
Jul. 3, 2007 |
| 7066192 |
Valve shut off device |
Jun. 27, 2006 |
| 6997201 |
Wastewater source control system |
Feb. 14, 2006 |
| 6935847 |
Spontaneous inflation inhibitor for inflatable prosthesis |
Aug. 30, 2005 |
| 6763845 |
Water freeze prevention device |
Jul. 20, 2004 |
| 6701951 |
Manual to electronic automatic valve conversion apparatus |
Mar. 9, 2004 |
| 6662821 |
System and method for closing an existing valve in response to a detected leak |
Dec. 16, 2003 |
| 6311897 |
Passive pulse generator and method for activating a fitting with a passive pulse generator |
Nov. 6, 2001 |
| 6296808 |
Method and apparatus for protecting building personnel during chemical or biological attack |
Oct. 2, 2001 |
| 6206337 |
Automatic flood control ball valve |
Mar. 27, 2001 |
| 6170798 |
Fluid detection and shutoff actuation apparatus retrofitable on fluid shutoff valve |
Jan. 9, 2001 |
| 6148842 |
Compensation element for the compensation of temperature-conditioned length changes of an object |
Nov. 21, 2000 |
| 6145755 |
Supplemental irrigation programmer |
Nov. 14, 2000 |
| 5967171 |
Shut-off system for preventing water damage |
Oct. 19, 1999 |
| 5934302 |
Control valve apparatus and method for regulating fluid flow in fluid-intake machines |
Aug. 10, 1999 |
| 5860247 |
Gas driven hydroponic system with a liquid pump outlet pipe connected to a variable buoyant float |
Jan. 19, 1999 |
| 5655561 |
Wireless system for detecting and stopping water leaks |
Aug. 12, 1997 |
| 5340025 |
Wind controlled spraying |
Aug. 23, 1994 |
| 5240022 |
Automatic shutoff valve |
Aug. 31, 1993 |
| 5097860 |
Pressure regulator for underwater breathing apparatus |
Mar. 24, 1992 |
| 4987913 |
Apparatus and method for controlling operation of storm sewage pump |
Jan. 29, 1991 |
| 4867191 |
Solar activated gas light control module |
Sep. 19, 1989 |
| 4535914 |
Automatic larvicide dispenser |
Aug. 20, 1985 |
| 4488567 |
Automatic valve closer |
Dec. 18, 1984 |
| 4448027 |
Cartridge containing water expandable members |
May. 15, 1984 |
| 4354571 |
Protective system for use in transfer of hazardous substances |
Oct. 19, 1982 |
| 4297686 |
Water detection device |
Oct. 27, 1981 |
| 4108195 |
Quick-closing fire gate |
Aug. 22, 1978 |
| 3991939 |
System for spraying and cooling vegetation |
Nov. 16, 1976 |
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