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Class Information
Number: 200/81.9M
Name: Electricity: circuit makers and breakers > Fluid pressure > Flow-responsive type > Magnet
Description:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7105757 |
Magnetic flow switch, for aspirators in particular |
Sep. 12, 2006 |
| 7105756 |
Flowswitch having reduced number of parts |
Sep. 12, 2006 |
| 6740827 |
Bi-directional piloted solenoid-operated valve |
May. 25, 2004 |
| 6552283 |
Activation flow switch for tankless water heaters |
Apr. 22, 2003 |
| 6548775 |
Paddle flow monitoring device |
Apr. 15, 2003 |
| 6528748 |
In-line flow switch assembly including magnetic sensitive plunger and microswitch actuator |
Mar. 4, 2003 |
| 6472624 |
In-line flow switch |
Oct. 29, 2002 |
| 6394670 |
Parts maintenance managing system |
May. 28, 2002 |
| 6384352 |
Air sensitive user input devices |
May. 7, 2002 |
| 6084187 |
Filter bypass switch |
Jul. 4, 2000 |
| 5935426 |
Water treatment device with volumetric and time monitoring features |
Aug. 10, 1999 |
| 5920265 |
Waterline leak detection and shutoff system |
Jul. 6, 1999 |
| 5888381 |
Water filter with pressure actuated flow monitor |
Mar. 30, 1999 |
| 5829431 |
Microphone attenuation device for use in oxygen breathing masks |
Nov. 3, 1998 |
| 5605145 |
Microphone attenuation device for use in oxygen breathing masks |
Feb. 25, 1997 |
| 5503175 |
Water safety system |
Apr. 2, 1996 |
| 5416294 |
Gas-flow operated switch |
May. 16, 1995 |
| 5236578 |
Filter life indicator for water purification system using magnetically actuated switch |
Aug. 17, 1993 |
| 5183983 |
Flow switch assembly for fluid flow monitoring |
Feb. 2, 1993 |
| 5172089 |
Pool pump fail safe switch |
Dec. 15, 1992 |
| 5162624 |
Flow switch |
Nov. 10, 1992 |
| 5144977 |
Fluid valve with actuation sensor |
Sep. 8, 1992 |
| 5131070 |
Portable humidifier |
Jul. 14, 1992 |
| 5126097 |
Fluid flow sensing and switching device |
Jun. 30, 1992 |
| 5126722 |
Point of lube monitor |
Jun. 30, 1992 |
| 5091612 |
Magnetically actuated proximity flow switch |
Feb. 25, 1992 |
| 5070220 |
Flow-switch construction |
Dec. 3, 1991 |
| 5055641 |
Fluid-flow-control-switch valve |
Oct. 8, 1991 |
| 5021619 |
Flow responsive switch apparatus |
Jun. 4, 1991 |
| 5019678 |
Fluid flow switches with low flow resistance |
May. 28, 1991 |
| 4996396 |
Flow switch |
Feb. 26, 1991 |
| 4963857 |
Translatable dual magnets |
Oct. 16, 1990 |
| 4928520 |
Plug release indicator |
May. 29, 1990 |
| 4906807 |
Apparatus for monitoring the flow of fluid media in a pipeline |
Mar. 6, 1990 |
| 4900896 |
Continuous flow water heater with magnetically-actuated flow switch |
Feb. 13, 1990 |
| 4883928 |
Float switch, a control apparatus and a warning apparatus of an engine |
Nov. 28, 1989 |
| 4879439 |
Apparatus for controlling start up and stop down of a hydraulic pump |
Nov. 7, 1989 |
| 4858647 |
Attitude-insensitive, by-pass sensor |
Aug. 22, 1989 |
| 4827092 |
Flow monitor with non-rotatable mounting |
May. 2, 1989 |
| 4791254 |
Flow switch |
Dec. 13, 1988 |
| 4788389 |
Flow switch valve |
Nov. 29, 1988 |
| 4788534 |
Wind alarm sensor |
Nov. 29, 1988 |
| 4739135 |
Attitude insensitive automatic reset flow sensor |
Apr. 19, 1988 |
| 4674338 |
Flow volume detection device |
Jun. 23, 1987 |
| 4638276 |
Reed switch with a housing and a pulse generator |
Jan. 20, 1987 |
| 4611105 |
Device for the measurement of through-flow with potential-free end contact switch |
Sep. 9, 1986 |
| 4603707 |
Purge block for gas systems |
Aug. 5, 1986 |
| 4600034 |
Device for the perception of gas flow |
Jul. 15, 1986 |
| 4563179 |
Blocking condition detection device in a fluid injection system |
Jan. 7, 1986 |
| 4533802 |
Liquid flow switch and method of using same |
Aug. 6, 1985 |
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