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Class Information
Number: 340/625
Name: Communications: electrical > Condition responsive indicating system > Specific condition > Fluent material > Material level > Liquid > Float sensor > Pivoted arm
Description: Subject matter wherein the float is rigidly attached to an arm connected to a pivot so as to restrict the motion of the float to an arcuate path centered at the pivot.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7581759 |
Fuel tank of motorcycle |
Sep. 1, 2009 |
| 7265677 |
External device indicating that a tank is filled up |
Sep. 4, 2007 |
| 7079037 |
System and method for indicating liquid level condition |
Jul. 18, 2006 |
| 7013728 |
System for detecting level of liquid in tank |
Mar. 21, 2006 |
| 6915690 |
Fuel gauge |
Jul. 12, 2005 |
| 6768424 |
Environmental condition detector with remote fire extinguisher locator system |
Jul. 27, 2004 |
| 6578417 |
Filling level sensor |
Jun. 17, 2003 |
| 6536277 |
Level-tracing water-monitoring apparatus |
Mar. 25, 2003 |
| 6508121 |
Filling level sensor |
Jan. 21, 2003 |
| 6425288 |
Lever transmitter for determining a filling level of liquid in a tank |
Jul. 30, 2002 |
| 6417775 |
Methods and systems for monitoring lighting control and indicating failure |
Jul. 9, 2002 |
| 6370951 |
Method and apparatus for sensing the level of fluid with a container |
Apr. 16, 2002 |
| 6362742 |
Safety float device for air conditioning units |
Mar. 26, 2002 |
| 6326895 |
Fluid level sensor for fluid tanks of boats |
Dec. 4, 2001 |
| 6267007 |
Level sensor |
Jul. 31, 2001 |
| 6160482 |
Tub alarm apparatus |
Dec. 12, 2000 |
| 6061238 |
Information processing apparatus, method of arranging components of the apparatus, and heat sink |
May. 9, 2000 |
| 5850175 |
Water level detector |
Dec. 15, 1998 |
| 5831536 |
Fuel tank alarm system |
Nov. 3, 1998 |
| 5781117 |
Water level detector alarm device |
Jul. 14, 1998 |
| 5666851 |
Fuel sender compensation arrangement |
Sep. 16, 1997 |
| 5642097 |
Remotely readable fuel tank indicator system |
Jun. 24, 1997 |
| 5623251 |
Device to verify the identity of a fluid for proper selection of storage vessel |
Apr. 22, 1997 |
| 5610591 |
Liquid level alarm system |
Mar. 11, 1997 |
| 5581062 |
Side-mountable liquid level sensor assembly |
Dec. 3, 1996 |
| 5493086 |
Monitoring and regulating device for a fluid such as engine oil |
Feb. 20, 1996 |
| 5426271 |
Liquid level sensor |
Jun. 20, 1995 |
| 5374790 |
Liquid level switch assembly |
Dec. 20, 1994 |
| 5369395 |
Differential float means and sensor means incorporating same |
Nov. 29, 1994 |
| RE34679 |
Level measuring device |
Aug. 2, 1994 |
| 5305639 |
LPG gauge sensor |
Apr. 26, 1994 |
| 5294917 |
Liquid level sensor using float and magnetic means |
Mar. 15, 1994 |
| 5281858 |
Fluid level activated float switch |
Jan. 25, 1994 |
| 5250768 |
Float switch with snap action member |
Oct. 5, 1993 |
| 5167156 |
Level detecting device in a plastic fuel tank |
Dec. 1, 1992 |
| 5140303 |
Submersible electronic fuel level signal damper |
Aug. 18, 1992 |
| 5117693 |
Liquid level sensor |
Jun. 2, 1992 |
| 5115222 |
Alarm to detect accidental sudden or slow falls from children into swimming pools |
May. 19, 1992 |
| 5099873 |
Water cooler drain pan apparatus |
Mar. 31, 1992 |
| 5089676 |
Liquid level float switch |
Feb. 18, 1992 |
| 5083461 |
Low friction trunnion bearing and high pressure seal |
Jan. 28, 1992 |
| 5023806 |
Telecommunication system for remote LP gas inventory control |
Jun. 11, 1991 |
| 5007450 |
Add-on liquid overflow shut-off valve for tank |
Apr. 16, 1991 |
| 5006834 |
Liquid level alarm |
Apr. 9, 1991 |
| 4986124 |
Screened inductance sensors, especially sensors for level measurement |
Jan. 22, 1991 |
| 4973947 |
Self-contained portable flood alarm |
Nov. 27, 1990 |
| 4968976 |
Alarm kit for a chemical tank of a noncommercial water purification system |
Nov. 6, 1990 |
| 4967181 |
Fuel level gauge provided with an apparatus for issuing a warning on the amount of remaining fuel |
Oct. 30, 1990 |
| 4961068 |
Domestic sewer alarm |
Oct. 2, 1990 |
| 4947888 |
Toxic fluid and vapor handling apparatus |
Aug. 14, 1990 |
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