Apparatus and methods to couple actuator stems and rod end...

Details Apparatus and methods to couple actuator stems and rod end... Apparatus and methods to couple actuator stems and rod end...

2008-05-05

2011-11-22

Fristoe, Jr., John (Department: 3753)

Valves and valve actuation

Fluid actuated or retarded

Flexible wall expansible chamber reciprocating valve actuator

C251S061000, C251S331000

Reexamination Certificate

active

08061681

ABSTRACT:
Methods and apparatus to couple actuator stems and rod end bearings are described. An example apparatus includes a bearing having a body and a portion extending from the body in which the portion includes an internally threaded bore. An actuator stem has a first end that includes an internally threaded bore. An externally threaded stud threadably engages the bores of the rod end bearing and the actuator stem to couple the rod end bearing and the actuator stem.

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International Searching Authority, “International Search Report,” issued in connection with international application No. PCT/US2009/040303, mailed Jul. 1, 2009, 4 pages.
International Searching Authority, “Written Opinion of the International Searching Authority,” issued in connection with international application No. PCT/US2009/040303, mailed Jul. 1, 2009, 7 pages.
Fisher Controls International, LLC., “Type 1051 and 1052 Diaphragm Rotary Actuators”, Fisher Product Bulletin, issued May 2007, 12 pages.

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