Boots – shoes – and leggings
Patent
1989-09-21
1991-06-11
Gruber, Felix D.
Boots, shoes, and leggings
235470, 318272, G06K 710, G08B 2300
Patent
active
050238183
ABSTRACT:
A scanning device having a laser, a motor for driving a mirror arrangement for moving the beam of the laser, and a microprocessor for control purposes is provided with a system for measuring and correcting fault conditions to meet laser safety requirements. Detection devices are provided for determining whether the laser is on or off, and whether the motor is running at or above a predetermined speed. If the laser is stuck in an on condition, then the motor is left running and an error is signalled. If the motor will not operate at or above the minimum speed, the laser is maintained in an off condition and an error is signalled.
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Blanford Denis M.
Burkey John K.
Wittensoldner Christopher J.
Gruber Felix D.
Hawk Jr. Wilbert
NCR Corporation
Sessler Jr. Albert L.
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