Locking mechanism for an adjustable spindle drive

Details Locking mechanism for an adjustable spindle drive Locking mechanism for an adjustable spindle drive

1979-03-15

1980-10-28

Byers, Jr., Nile C.

Machine element or mechanism

Alternate manual or power operators

192150, F16D 700

Patent

active

042299950

ABSTRACT:
A valve spindle drive is disclosed in which the travel of the spindle is limited by a locking mechanism. The spindle is driven by a gearing system on which locking rings are provided. Each locking ring permits rotation in one direction. Arms resiliently mounted on the valve housing carry a second pair of locking rings for mating with the rings on the gearing system. Deflection of the arms during travel of the spindle actuates switches for controlling a spindle motor drive. Movement of the spindle and gearing relative to the second pair of locking elements provides for engagement of a pair of respective locking rings to prevent further spindle travel. The other pair of rings is prevented from coupling by a cam device carried by the gearing.

REFERENCES:
patent: 2525915 (1950-10-01), Kuhn
patent: 2703991 (1955-03-01), Kron
patent: 2858919 (1958-11-01), Jones
patent: 2895781 (1959-07-01), Latter
patent: 2975034 (1961-04-01), Geyer
patent: 3161014 (1964-12-01), Abild
patent: 3198033 (1965-08-01), Fry
patent: 3515250 (1970-06-01), Cantalupo
patent: 3628397 (1971-12-01), Sheesley
patent: 3700085 (1972-10-01), Balz

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