Probe for measuring the level of liquid in a tank or pipe
Patent 4594893 Issued on June 17, 1986. Estimated Expiration Date: 
August 1, 2004. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
August 1, 2004. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 2700901 2710541 2760372 2769338 2998559 Capacitance probe and system for precision measurement of liquid level Sealed capacitor transducer for fluid flow measurement Liquid level gauge Apparatus for determining the liquid level in a tank Capacitive scheme for measuring the level of a liquid InventorsAssigneeApplicationNo. 06/636630 filed on 08/01/1984US Classes:73/304C, Capacitative324/669, With compensation means324/690, Including a probe type structure361/284Liquid levelExaminersPrimary: Yasich, Daniel M.Attorney, Agent or FirmInternational ClassesG01F 23/26 (20060101)G01F 23/22 (20060101) Foreign Application Priority Data1983-08-03 FRAbstractThe capacitor probe is made up of two parts, both of which are in fluid communication with the interior of the tank or pipe the liquid level of which is to be measured. One part (7) of the probe is located at the bottom of the probe and acts as a reference capacitor. The other part (4) of the probe extends upwardly to the maximum liquid level to be measured. The part (4) includes two identical measuring capacitors, one of which is connected to the reference capacitor. | |
