Method and apparatus for measuring the height of filling material on a surface, such as within a container
Sound emission level detection
Automatic cleaning of sensing probes
System and method for determining fluid level in a container
Magnetic flowmeter with ultrasonically cleaned electrodes
ApplicationNo. 266839 filed on 11/03/1988
US Classes:73/290VVibratory type
ExaminersPrimary: Cuchlinski, William A. Jr.
Assistant: Worth, W. Morris
Attorney, Agent or Firm
Foreign Patent References
International ClassG01F 023/00
AbstractA method of detecting an effluent level in an aircraft lavatory holding tank and a device for practicing the method. The device uses electrodynamic forces of different values generated by an electro-impulse solenoid to determine whether a detector is contaminated, to dislodge contaminants, and to measure the fluid level in the holding tank when the detector is clean enough to produce an accurate reading.