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Class Information
Number: 137/551
Name: Fluid handling > With indicator, register, recorder, alarm or inspection means
Description: Apparatus comprising fluid handling means combined (1) with an indicator, register, recorder, or alarm responsive to a condition or position of a part of the apparatus or of the fluid in the apparatus or (2) with means which permits inspection of normally hidden parts of the apparatus or of the fluid inside the apparatus.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 6039066 |
Safety hose system |
Mar. 21, 2000 |
| 6026843 |
Valve box manifold system and distribution method |
Feb. 22, 2000 |
| 6017017 |
Process and apparatus for the recognition of the state of a solenoid valve |
Jan. 25, 2000 |
| 5992436 |
Monitoring steam traps using RF signaling |
Nov. 30, 1999 |
| 5980735 |
Collection system for machine tool coolant |
Nov. 9, 1999 |
| 5971007 |
Piston valve |
Oct. 26, 1999 |
| 5960826 |
Fluid storage tank with a spill containment system |
Oct. 5, 1999 |
| 5950671 |
Over-pressure protection of a fluid sensor |
Sep. 14, 1999 |
| 5941273 |
Drain trap apparatus |
Aug. 24, 1999 |
| 5915415 |
Flow control valve assembly with temperature indicating capability for a water conveying device |
Jun. 29, 1999 |
| 5899225 |
Air tube connection state detecting apparatus |
May. 4, 1999 |
| 5898375 |
Siphon alarm and restarting mechanism |
Apr. 27, 1999 |
| 5887614 |
Overfill prevention device for storage tanks |
Mar. 30, 1999 |
| 5879632 |
Apportioning system |
Mar. 9, 1999 |
| 5864287 |
Alarms for monitoring operation of sensors in a fire-suppression system |
Jan. 26, 1999 |
| 5858215 |
Water filter containing faucet and display therefor |
Jan. 12, 1999 |
| 5832955 |
Method for detecting valve play in a cylinder valve actuated by an electromagnetic actuator |
Nov. 10, 1998 |
| 5803105 |
Systems and methods for distributing fluids |
Sep. 8, 1998 |
| 5782266 |
Pressure relief valve for a packaging container |
Jul. 21, 1998 |
| 5764148 |
Electronic water utility safety and monitoring apparatus |
Jun. 9, 1998 |
| 5756882 |
Cap low leak testing system |
May. 26, 1998 |
| 5738133 |
Liquid analyzing apparatus |
Apr. 14, 1998 |
| 5699830 |
Solenoid valve controller |
Dec. 23, 1997 |
| 5694963 |
Method and apparatus for freeze prevention of irrigation systems |
Dec. 9, 1997 |
| 5680329 |
Fire protection code compliance verification system and method |
Oct. 21, 1997 |
| 5664601 |
Relief valve with abnormal pressure indicator means |
Sep. 9, 1997 |
| 5651388 |
Indicating assembly for use with a faucet |
Jul. 29, 1997 |
| 5636653 |
Fluid metering apparatus and method |
Jun. 10, 1997 |
| 5616829 |
Abnormality detection/suppression system for a valve apparatus |
Apr. 1, 1997 |
| 5603345 |
Retroffitable safety shut-off valve for gas or liquid meter |
Feb. 18, 1997 |
| 5588462 |
Valve and sensor arrangement |
Dec. 31, 1996 |
| 5584319 |
Electro-optical valve-status supervision switch circuit for fire protection |
Dec. 17, 1996 |
| 5566715 |
Flood prevention valve |
Oct. 22, 1996 |
| 5542450 |
Apparatus for metering fluids |
Aug. 6, 1996 |
| 5542449 |
Single-outlet hot/cold water faucet with a water temperature display device |
Aug. 6, 1996 |
| 5539384 |
Electronic water utility safety apparatus |
Jul. 23, 1996 |
| 5538036 |
Control system for a pneumatic valve actuator |
Jul. 23, 1996 |
| 5535779 |
Water outlet control device |
Jul. 16, 1996 |
| 5521840 |
Diagnostic system responsive to learned audio signatures |
May. 28, 1996 |
| 5506564 |
Marine craft fuel alert system |
Apr. 9, 1996 |
| 5492009 |
Method and apparatus for testing a valve actuated by an electromagnet having an armature |
Feb. 20, 1996 |
| 5482078 |
Water faucet fitting seat capable of producing musical tone or animal howl |
Jan. 9, 1996 |
| 5473309 |
Apparatus for testing an irrigation system controller and method of testing irrigation systems |
Dec. 5, 1995 |
| 5464039 |
Fluid flowmeter-controller |
Nov. 7, 1995 |
| 5435342 |
Fluid outlet system |
Jul. 25, 1995 |
| 5409037 |
Automatic device for the detection and shutoff of excess water flow in pipes |
Apr. 25, 1995 |
| 5406979 |
Valve and sensor arrangement |
Apr. 18, 1995 |
| 5400818 |
Sensor for peracetic acid-hydrogen peroxide solution |
Mar. 28, 1995 |
| 5347264 |
Method and apparatus for automatically controlling a water supply using movement detector means |
Sep. 13, 1994 |
| 5320137 |
Faucet with liquid crystal temperature indicator |
Jun. 14, 1994 |
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