The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Oct. 24, 2006

Filed:

May. 11, 2004
Applicants:

Ken Shibazaki, Miyagi-ken, JP;

Ayumu Kobayashi, Fukushima-ken, JP;

Inventors:

Ken Shibazaki, Miyagi-ken, JP;

Ayumu Kobayashi, Fukushima-ken, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01L 3/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

When a knob is turned by a predetermined turning angle α and this angle is detected by a rotary encoder, an electromagnetic brake is activated by a controller and the rotation of the knob is locked. Then, while the knob is locked by the electromagnetic brake, the controller determines whether an operating force was applied to the knob in direction A in which the turning angle of the knob is increased. If the controller determines that the operating force was not applied to the knob in direction A (if the operating force was applied in direction B), the locking of the knob is released.


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