Geometrical instruments – Distance measuring – Opposed contacts
Patent
1988-10-17
1990-06-05
Raevis, Robert R.
Geometrical instruments
Distance measuring
Opposed contacts
G01B 500
Patent
active
049302280
ABSTRACT:
A stem load determining system comprises a method and apparatus for determining the load developed on a threaded stem, including a valve stem driven by a valve operator. An integral component of the apparatus is a stem strain transducer uniquely designed to girp a threaded stem to define a guage length on the threaded stem and to detect and measure deformation of the stem at the guage length when subjected to a compressive or tensile load.
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Anderson Paul G.
McMennamy John A.
Isaf Louis T.
Movats Incorporated
Raevis Robert R.
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