Machine element or mechanism – Automatic operation or control
Patent
1983-06-13
1985-12-10
Freeh, William L.
Machine element or mechanism
Automatic operation or control
744248R, 74625, 74640, 310 80, 310 83, G05G 1700, F16H 3700, H02K 706
Patent
active
045571538
ABSTRACT:
There is disclosed an improved "harmonic screw" type actuator wherein rotary motion of the power input component is converted into linear motion of the output component by means of a strain wave imposed upon a flexible sleeve member of the assembly, which is flexed into intermittent screw engagement by a member which is motor-driven to rotate relative to the periphery of the flexible sleeve; thereby causing progressively advancing/retreating inter-engagements of thread-like surfaces formed on the axially stationary and axially movable components of the system. A variety of automatic "fail-safe" provisions are included as well as means for manual operation in power loss situations.
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Air Monitor Corporation
Freeh William L.
Neils Paul F.
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