Title: Valve actuating mechanism

Abstract: A spring biased poppet valve has the exposed end of its poppet plunger engaging the underside of a lever, and the poppet and lever are biased upwardly so that a tit on the upperside of the lever engages a cam surface defined on a cam member loosely mounted on a generally horizontal rock shaft. The shaft can be moved through an angular range of displacements as part of a normal control system, which system receives fluid operating pressure through the open poppet valve. An adjustable stop screw mounted to the shaft is so oriented that the cam member is positively moved about the axis of the shaft when the shaft has reached a predetermined angular displacement, whereby further movement of the shaft permits the spring loaded poppet valve to close.

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Inventors: Hansen, Kenneth B. (Enfield, CT, US)
Olson, Robert K. (Bloomfield, CT, US)

Application Number: 513584
Filing Date: 1974-10-10
Publication_date: 1976-03-09
Assignee: United Technologies Corporation (Hartford, CT)
Primary Class(es): 251/78 74/567, 251/263
Other Classes:
US Patent Ref:

2872149	Feb, 1959	Battey	251/263.
3142186	Jul, 1964	Melton	251/77.
3259359	Jul, 1966	Wahlin	251/263.
3818771	Jun, 1974	Kobelt	74/567.

Other Refs:
Primary Examiner: Cohan, Alan
Assistant Examiner:
Attorney: Del Ponti; John D.