Switch mechanism usable underwater

Details Switch mechanism usable underwater Switch mechanism usable underwater

2005-11-17

2008-09-16

Perkey, W. B. (Department: 2862)

Photography

Underwater, waterproof, or water-resistant camera

C200S0050EA, C200S00600C, C200S018000, C200S339000, C396S543000

Reexamination Certificate

active

07426338

ABSTRACT:
The present invention provides a switch mechanism usable underwater including a rear cover serving as an exterior member, two shaft members being displaceable in a shaft direction and fitting into two shaft holes having the same cross-sectional area provided in the rear cover, an O-ring watertightly maintaining the shaft member and the shaft hole, and a lever member being engaged with the two shaft members in a manner to be capable of pressing-down or pulling-up the shaft member, and being configured to balance water pressure applied to one shaft member with that applied to the other shaft member.

REFERENCES:
patent: 3019715 (1962-02-01), Arnold et al.
patent: 4244591 (1981-01-01), Umetsu
patent: 5514843 (1996-05-01), Wilfong et al.
patent: 6556786 (2003-04-01), Taguchi et al.
patent: 2006/0008262 (2006-01-01), Watanabe et al.
patent: 51-111343 (1976-09-01), None

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