Electricity: motive power systems – Synchronous motor systems – Brushless motor closed-loop control
Reexamination Certificate
2006-12-04
2009-12-29
Ro, Bentsu (Department: 2837)
Electricity: motive power systems
Synchronous motor systems
Brushless motor closed-loop control
C318S127000, C318S652000, C318S721000, C400S279000
Reexamination Certificate
active
07638960
ABSTRACT:
A positioning device for positioning a positioning element has a motor (18) that drives the positioning element (10) and has a measuring device that directly measures the positioning travel of the positioning element for controlling the motor (18). For this, a traction cable (32) is joined to the positioning element and is wound onto a drum (36). For measuring the positioning travel of the positioning element, the rotational position of the drum (36) is measured by means of an encoder (42).
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Hartlieb Rolf
Maier Josef
Siraky Josef
Chung Sung Yeop
Meyer Jerald L.
Paul Antony M
Ro Bentsu
Sick Stegmann GmbH
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