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, 1978

Filed:

Apr. 21, 1977
Applicant:
Inventor:

Kouichi Takahata, deceased, LATE OF Tokyo, JP;

Assignee:

Nippon Kogaku K.K., Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03B / ; H02P / ;
U.S. Cl.
CPC ...
354173 ; 3183 / ;
Abstract

An automatic stop motion device in a motor drive camera includes a motor for effecting film winding, a power supply including a battery for supplying a current to the motor, a time measuring circuit for measuring the time during which the current is supplied to the motor and for putting out a signal corresponding to the time, and a detector for detecting when the output signal of the time measuring circuit has reached a predetermined value, thereby judging the state of impossibility of film winding and cutting off the supply of current to the motor.


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Takahata, deceased, Kouichi. (1978). Automatic stop motion device in a motor drive camera (U.S. Patent No. 4122471). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4122471

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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