US 4,071,851 AGranted

Method of adjusting camera with latched shutter blade mechanism for shipment

AssigneePolaroid Corporation

InventorBruce K. Johnson

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Abstract

The method of this invention is utilized by the manufacturer of a camera apparatus of the type having an automatic shutter latch mechanism, as well as an automatic film advancement mechanism to adjust the control system of the camera apparatus prior to the shipment so that even if the shutter latch mechanism is accidentally unlatched, the user will still be able to insert a film cassette into the film receiving chamber without incurring an automatic film advancement operation prior to closing the film loading access door. The method provides for the advancement of the camera control system through a portion of its photographic cycle by an external motor to a point in the cycle where a film unit would have otherwise been processed and advanced from the camera thereby insuring that the first time insertion of the film cassette within the camera by a user will not result in a film advancement operation if the automatic shutter latch mechanism should become unlatched during transit.

Claims7

Dependent claims

A method of preparing a camera having a user operated start actuator and a normally latched shutter for shipment so as to avoid initial abortive camera operation by a user in the event of shock impact during shipment of sufficient force to cause shutter unlatching, said camera when energized and actuated by a user having a cycle of operation normally responsive to the unlatching of said shutter comprising a plurality of events occurring in a predetermined sequence and including the event of relatching the shutter after a predetermined period of time has elapsed following the occurrence of a given event of said plurality of events, said camera further being of the type wherein if said shutter should become unlatched through shock impact, subsequent energization of said camera without actuation of said actuator by the user will result in said camera automatically performing said cycle including said given event as well as said relatching event, said method comprising the steps of:

effecting the operation of at least a portion of said cycle including said given event;
and
interrupting said effected operation prior to the lapse of said predetermined period of time following the occurrence of said given event.

Dependencies are inferred from the claim text.