Machine element or mechanism – Mechanical movements – Reciprocating to or from oscillating
Patent
1982-08-31
1984-05-29
Cohan, Alan
Machine element or mechanism
Mechanical movements
Reciprocating to or from oscillating
74491, 251162, 251163, G05G 700
Patent
active
044507321
ABSTRACT:
This invention relates to the device for imposing a linear movement to the valve stem of the free-disc butterfly valves or the free-ball-plug valves in one direction before imposing a rotating movement to open the valve and another linear movement to the valve stem in the other direction after imposing another rotating movement to close the valve.
REFERENCES:
patent: 2071814 (1937-02-01), Brisbane
patent: 3469461 (1969-09-01), Ludwig
Cohan Alan
Novack Sheri
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