Actuator

Machine element or mechanism – Mechanical movements – Reciprocating or oscillating to or from alternating rotary

Reexamination Certificate

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Reexamination Certificate

active

07047834

ABSTRACT:
An actuator includes a quick release inserted in a transmission between an activating element (6) and a reversible electric motor (2) for releasing the activating element from the electric motor and the part of the transmission extending from the motor to the quick release. The quick release comprises two cylindrical coupling parts (8, 9) surrounded by a coupling spring (11) having outwardly bent ends, said ends being connected with their respective cylindrical elements (12, 13), seated to take part in the rotation of the coupling under normal circumstances, and wherein the two cylindrical elements (12, 13) with a release (14) are adapted to being rotated mutually to turn the ends of the spring away from each other, such that the spring (11) is released from at least one of the coupling (8, 9) for complete or partial release of the coupling. The two cylindrical elements (12, 13) are provided with an exterior toothing, and that the release (14) has a corresponding toothing (20) which may be caused to mesh therewith for mutual rotation of the cylinders.

REFERENCES:
patent: 2881619 (1959-04-01), Fox et al.
patent: 3258985 (1966-07-01), Jordan
patent: 3659683 (1972-05-01), Betzing
patent: 4715315 (1987-12-01), Burford
patent: 4858481 (1989-08-01), Abraham
patent: 5329657 (1994-07-01), Bartley et al.
patent: 5865272 (1999-02-01), Wiggins et al.
patent: 6158295 (2000-12-01), Nielsen
patent: 2004/0117943 (2004-06-01), Block et al.
patent: 0 685 662 (1995-12-01), None
patent: 02/29284 (2002-04-01), None

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