A - Human Necessities – 61 – C
Patent
A - Human Necessities
61
C
315/1, 83/14
A61C 1/10 (2006.01) A61C 1/08 (2006.01) G05B 1/00 (2006.01)
Patent
CA 1101483
Abstract An apparatus for controlling the actuation of a light for illuminating the work zone adjacent the operative and of a dental handpiece. The apparatus comprises (a) means for actu- ating a light source when a signal is transmitted to the actu- ating means from the power transmitting means for the dental handpiece, (b) means for transmitting the signal to the actua- ting means from the power transmitting means for the handpiece, and (c) delay shutoff means associated with the actuating means for maintaining the light source on for a predetermined period of time after transmission of power to the operative end of the handpiece is terminated and then causing the light source to be extinguished at the end of the predetermined period of time.
318252
Johnson Douglas S. Q.c.
Star Dental Manufacturing Co. Inc.
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