Electrically controlled photographic shutter

Details Electrically controlled photographic shutter Electrically controlled photographic shutter

1976-07-02

1978-10-31

Hayes, Monroe H.

354 60R, 354243, 354256, 354258, 354234, G03B 708

Patent

active

041237668

ABSTRACT:
In the disclosed shutter system, a standby mechanical shutter control operates a shutter in response to failure of the power source of a primary electrical shutter control. Normally the power source enables the electrical shutter control to time and operate the shutter. More specifically, in the disclosure, a standby mechanical timer responds to the failure of a power source to actuate a magnet in an electrical automatic timing arrangement, and operates the shutter for a fixed period.

REFERENCES:
patent: 3082673 (1963-03-01), Takahama
patent: 3264965 (1966-08-01), Rentschler
patent: 3434403 (1969-03-01), Biedermann
patent: 3479935 (1969-11-01), Harvey

Affiliated with

Also associated with

Rating

Electrically controlled photographic shutter does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Electrically controlled photographic shutter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electrically controlled photographic shutter will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1837896