Actuator system

Details Actuator system Actuator system

2011-04-26

2011-04-26

Masih, Karen (Department: 2837)

Electricity: motive power systems

Limitation of motor load, current, torque or force

C318S432000, C318S433000

Reexamination Certificate

active

07932687

ABSTRACT:
An actuator system, preferably for patient lifters, includes at least one actuator driven by an electric motor, a control unit having a power limiting circuit, and at least one handset having a plurality of keys. The actuator system is arranged such that the threshold value of the maximum permissible power in the power limiting circuit may be changed, and that this change may be performed via a key on the handset. Thus, it is possible to subsequently adjust the cutout limit safely and easily via a key on a handset, so that the cutout limit may be adapted to the actual application into which the actuator system is to be incorporated. For reasons of safety, it is preferred to use a separate handset for changing the threshold value.

REFERENCES:
patent: 3877421 (1975-04-01), Brown
patent: 5015826 (1991-05-01), Curti
patent: 6289534 (2001-09-01), Hakamiun et al.
patent: 6429642 (2002-08-01), Rodilla Sala
patent: 6684419 (2004-02-01), Perla
patent: 2005/0097670 (2005-05-01), Hawk et al.
patent: 2005/0204992 (2005-09-01), Shelton et al.
patent: 19950689 (2000-11-01), None
patent: 0399836 (1990-11-01), None
English Abstract of DE19950689, Oct. 21, 1999.

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