Watch whose case includes a back cover or cover with a...

Horology: time measuring systems or devices – Chronological – With significant casing or mounting support structure

Reexamination Certificate

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Details

C368S291000

Reexamination Certificate

active

07149153

ABSTRACT:
In an electronic watch containing an electric battery assembly of large size, particularly a battery assembly including several batteries or accumulators (41, 42), the diameter of a removable cover (20) closing a large bottom opening of the back cover (14) of the watchcase is limited by the fact that the cover is provided with a bayonet fitting device having locking members (56) radially directed towards the interior. These locking members catch on a fixed support (22) having one or more housings for the battery assembly. They are arranged at the top of a substantially cylindrical annular portion (50) of the cover. A sealing gasket (52) is placed around this annular portion and compressed radially against a cylindrical surface (16) of the periphery of the opening in the back cover, which ensures water-resistance even if the bayonet fitting is not screwed all the way in. According to a variant, the cover can form the entire back cover of the case.

REFERENCES:
patent: 4073132 (1978-02-01), Frohlich
patent: 4206590 (1980-06-01), Fukutome et al.
patent: 4796240 (1989-01-01), Stevens
patent: 6219304 (2001-04-01), Mignot et al.
patent: 6418086 (2002-07-01), Terasawa et al.
patent: 2002/0064908 (2002-05-01), Marquis et al.
patent: 2002/0096544 (2002-07-01), Scarinzi et al.
patent: 211 142 (1940-08-01), None
patent: 10 24 889 (1958-02-01), None
patent: 272 515 (1987-12-01), None
patent: 1 565 930 (1980-04-01), None

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