Measuring and testing – With fluid pressure – Dimension – shape – or size
Patent
1977-02-16
1978-02-14
Queisser, Richard C.
Measuring and testing
With fluid pressure
Dimension, shape, or size
340271, G01B 1312
Patent
active
040731847
ABSTRACT:
A monitoring device is described which is particularly useful in tracking the axial displacement of a rotating shaft in either axial direction. The monitoring device includes a position monitoring function, an alarm and trip function, and a test function. Various fluidic devices are combined into a fluidic circuit for carrying out the foregoing functions in an improved, reliable and less costly manner than heretofore available in prior art devices. A distinct advantage of the invention is its relative ease of installation in retrofit applications.
REFERENCES:
patent: 2839071 (1958-06-01), Rosch
patent: 3220244 (1965-11-01), Donnelly
patent: 3232096 (1966-02-01), Bruijel
Ahern John F.
General Electric Company
Messenger Herbert E.
Mitchell James W.
Queisser Richard C.
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