Electricity: motive power systems – Automatic and/or with time-delay means – Movement – position – or limit-of-travel
Reexamination Certificate
2007-03-27
2007-03-27
Donovan, Lincoln (Department: 2837)
Electricity: motive power systems
Automatic and/or with time-delay means
Movement, position, or limit-of-travel
C318S461000, C318S476000, C318S484000
Reexamination Certificate
active
10334724
ABSTRACT:
An apparatus for detecting an obstacle to a power regulated window, which can detect existence of an obstacle by a method of differential current at low rotating speed of a motor and reduce a force of biting an obstacle and prevent from detecting an obstacle unexpectedly at high rotating speed, includes current detecting means for detecting a value of load current flowing through the motor, reference-value generating means for generating a reference value correspondingly to rotating speed of the motor for judging when the value of load current exceeds a predetermined value of over-load current, and comparing means for judging whether or not the value of load current exceeds the reference value.
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Mochizuki Yasuyuki
Nakamura Yasushi
Nakazawa Yuichi
Armstrong, Kratz, Quintos Hanson & Brooks, LLP.
Donovan Lincoln
McCloud Renata
Yazaki -Corporation
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