Actuator with helical cam guides

Details Actuator with helical cam guides Actuator with helical cam guides

2007-03-06

2007-03-06

Dinh, Tien (Department: 3644)

Aeronautics and astronautics

Aircraft structure

Details

C049S139000

Reexamination Certificate

active

10953230

ABSTRACT:
The invention is an actuator assembly for actuating a door or aerodynamic surface of an aircraft. In detail, the invention includes a housing having first and second ends and a longitudinal axis. The housing center portion further includes first and second helical slots extending along the longitudinal axis. A cam follower, having first and second ends, is movably mounted in the center portion, the cam follower movable along the longitudinal axis of the housing. An actuator is provided for actuating the cam follower in first and second directions along the longitudinal axis. A bolt assembly, having first and second ends, is mounted through the cam follower with the first and second ends thereof extending into the first and second helical slots. First and second bearings are mounted to the first and second ends of bolt assembly such that the first and second bearings are movably mounted in the first and second helical slots. An actuation rod has its first end in the form of a clevis with first and second lugs movably connected to the first and second ends of the bolt assembly.

REFERENCES:
patent: 2373085 (1945-04-01), Ackerman et al.
patent: 3315413 (1967-04-01), Beecher et al.
patent: 3440764 (1969-04-01), Cover
patent: 3718171 (1973-02-01), Godwin
patent: 6619591 (2003-09-01), Erben et al.
patent: 2003/0015048 (2003-01-01), Schmidt et al.

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