Valve actuating device

Details Valve actuating device Valve actuating device

1976-03-26

1977-07-12

Herrmann, Allan D.

Machine element or mechanism

Alternate manual or power operators

192 4891, 192 93A, 192 95, F16D 2106

Patent

active

040346242

ABSTRACT:
In a valve-actuating mechanism of the kind which is manually manipulated for actuating the valve-actuating member, the combination of a helical cam surface formed on a friction ring, a follower solid with the handwheel shaft and two confronting cylindrical surfaces carrying clutching dogs, a spring being inserted therebetween. Frictional forces are exploited for causing the axial displacement of the handwheel overcoming the spring bias.

REFERENCES:
patent: 812817 (1906-02-01), Bryan
patent: 3515250 (1970-06-01), Cantalupo
patent: 3603175 (1971-09-01), Horton
patent: 3740146 (1973-06-01), Wilharm

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