Patent
1976-01-13
1977-04-12
Griffin, Donald A.
354268, G03B 908, G03B 1738
Patent
active
040178765
ABSTRACT:
This invention relates to an improvement to a photographic camera of the type having an automatic shutter latch mechanism which may be released in response to initial shutter blade movement resulting from energization of the shutter drive means and which may thereafter be moved into position to accommodate relatching of the shutter blades in response to film advancement. The shutter latch mechanism additionally includes a shock stabilizing arrangement to inhibit the accidental unlatching of the shutter blade mechanism resulting from shutter blade movement occasioned through extraneous vibration, sudden shock, or otherwise. The improvement resides in the automatic shutter latch mechanism which includes means responsive to the displacement of the latch when effecting the release of the shutter blade mechanism for inhibiting the operative influence of the shock stabilizing means on the blade mechanism until the blade mechanism is returned to its arrangement wherein it is retainable by the latch.
REFERENCES:
patent: 3358572 (1967-12-01), Steisslinger
patent: 3362311 (1968-01-01), Singer
patent: 3820128 (1974-06-01), Burgarella et al.
Coughlan Edward H.
Whiteside George D.
Griffin Donald A.
Polaroid Corporation
Roman Edward S.
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