Ball screw and nut linear actuator assemblies and methods of cus

Details Ball screw and nut linear actuator assemblies and methods of cus Ball screw and nut linear actuator assemblies and methods of cus

1997-03-27

1999-02-09

Bonck, Rodney H.

Machine element or mechanism

Mechanical movements

Reciprocating or oscillating to or from alternating rotary

74459, 744248NA, 18832212, F16H 2702, F16F 938

Patent

active

058680322

ABSTRACT:
A method and apparatus wherein a travel limit/dampening device is coupled to the end of a screw of a linear ball screw actuator device for limiting the travel of an actuator extension coupled to a nut supported for linear driven displacement in either direction along the screw. The travel limit/dampening device includes a gas shock supported within a double acting reaction device reactive axially between the nut and screw when the extension is fully retracted and extended, respectively, to collapse the shock absorber and thereby dampen the movement of the extension at each end of its stroke.

REFERENCES:
patent: 3512739 (1970-05-01), Powell et al.
patent: 3762227 (1973-10-01), Bohnhoff
patent: 4392390 (1983-07-01), Johnson
patent: 4515085 (1985-05-01), Rohrbach
patent: 4598238 (1986-07-01), Scarano
patent: 5031732 (1991-07-01), Batek et al.
patent: 5090513 (1992-02-01), Bussinger
patent: 5485760 (1996-01-01), Lange

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