Rotary to linear actuator and method of making the same

Details Rotary to linear actuator and method of making the same Rotary to linear actuator and method of making the same

1979-09-17

1981-08-11

Husar, C. J.

Machine element or mechanism

Mechanical movements

Reciprocating or oscillating to or from alternating rotary

744248R, 156173, 308238, F16H 118, B65H 8100

Patent

active

042827647

ABSTRACT:
A shaft is machined with helical flats or grooves. A collar or nut having a low friction inner face fits the shaft whereby their relative axial movement effects their relative rotation. The collar or nut is a short section of a longer tube which has been formed on a mandrel with corresponding outer dimensions and includes a low friction inner face and an outer thermoset resin body having a helically wound glass filament reinforcing. A minimum winding angle is required because of manufacturing considerations and strength requirements. The profile of the flats or grooves of the mandrel and of the shaft is selected relative to the winding angle of the glass filaments so that the glass filaments are not required to span any reentrant portions in either direction of winding.

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patent: 3572392 (1971-03-01), McLarty
patent: 3616000 (1971-10-01), Butzow et al.
patent: 3692375 (1972-09-01), Matt et al.
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patent: 3713932 (1973-01-01), Butzow et al.
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patent: 4040883 (1977-08-01), Matt et al.
patent: 4054337 (1977-10-01), Matt et al.
patent: 4189985 (1980-02-01), Harris

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