Indicating instrument and initializing device

Details Indicating instrument and initializing device Indicating instrument and initializing device

2007-06-19

2007-06-19

Thompson, Jewel (Department: 2855)

Measuring and testing

Dynamometers

Responsive to torque

Reexamination Certificate

active

11208887

ABSTRACT:
An indicating instrument includes a stepping motor, a speed-reducing gear mechanism, an indicating needle, a stopper mechanism and an initializing unit. A position which the indicating needle indicates when turned by a preset angle relative to a position which the indicating needle indicates when turning of the indicating needle is mechanically stopped with the stopper mechanism is taken as a graduation-starting position. The initializing unit is to drive the stepping motor to turn the indicating needle toward the indicating needle-stopped position; after stoppage of the turning of the needle, to drive the stepping motor to turn the needle away from the needle-stopped place where the turning of the needle is mechanically stopped with the stopper mechanism, thereby to turn the needle beyond the graduation-starting position, and thereafter to drive the stepping motor to turn the needle toward the stopper mechanism; and to return the needle to the graduation-starting position and stop the needle there.

REFERENCES:
patent: 4191120 (1980-03-01), Bergvall
patent: 4314146 (1982-02-01), Berney
patent: 2003/0076069 (2003-04-01), Yamada et al.
patent: 2006/0010977 (2006-01-01), Baba
patent: 0 959 359 (1999-11-01), None
patent: 1 195 610 (2002-04-01), None
patent: 2000-050695 (2000-02-01), None
patent: 2001-314099 (2001-11-01), None
patent: 2002-250641 (2002-09-01), None

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