Treatment bed with balancing circuit

Details Treatment bed with balancing circuit Treatment bed with balancing circuit

2011-01-04

2011-01-04

Santos, Robert G (Department: 3673)

Beds

Invalid bed or surgical support

Sectional user supporting surface

C005S611000, C005S600000

Reexamination Certificate

active

07861340

ABSTRACT:
A treatment bed has two lifting motors connected in parallel mechanically in the height-adjustable lifter. In order to load the lifting motors evenly and avoid torsions in the lifter, a balancing circuit that measures the supply currents of the lifting motors is provided. If a difference is determined, then the respective current is briefly interrupted several times until the magnitudes of the currents approach one another.

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patent: 2007/0180620 (2007-08-01), Bellingroth
patent: 2008/0148485 (2008-06-01), Barthelt
patent: 2010/0146704 (2010-06-01), Barthelt

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