Bidirectional positioning actuator with limited positioning rang

Details Bidirectional positioning actuator with limited positioning rang Bidirectional positioning actuator with limited positioning rang

1998-11-13

2000-04-18

Martin, David

Electricity: motive power systems

Positional servo systems

Limit or end-stop control

318446, 318466, 318468, 307119, 307 66, G05G 500

Patent

active

060519487

ABSTRACT:
A positioning actuator for positioning at least a part of a movable load at selected positions in a range of available positions in response to corresponding provisions of electrical energy of selected polarities between a pair of power terminals connected through limit switches to an electrical motor which switches limit that range. Energy storage is used to force the motor to further separate the contacts in those switches after they have been initially opened.

REFERENCES:
patent: 4087728 (1978-05-01), Porter
patent: 4940903 (1990-07-01), Brown, Jr.
patent: 5028853 (1991-07-01), Brown, Jr.
patent: 5081405 (1992-01-01), Nelson
patent: 5278454 (1994-01-01), Strauss et al.
patent: 5723918 (1998-03-01), Schilling et al.

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