METHODS AND APPARATUS FOR ESTIMATING USEFUL LIFE OF A SEAL

Methods and apparatus for estimating useful life of a seal in a process control device are disclosed. An example apparatus includes a processor to: determine a plurality of operational cycles of a stem or shaft of a process control device; determine a first value corresponding to a stress experience...

Ausführliche Beschreibung

Bibliographische Detailangaben

1. Verfasser:	ANDERSON SHAWN WILLIAM
Format:	Patent
Sprache:	eng
Schlagworte:	MEASURING PHYSICS TESTING TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR
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