Watertight wrist-watch casing

Details Watertight wrist-watch casing Watertight wrist-watch casing

1982-05-04

1983-12-20

Truhe, J. V.

Horology: time measuring systems or devices

Cases

With protection means

368276, 368281, 368292, G04B 3708, G04B 3700

Patent

active

044214235

ABSTRACT:
The bottom of the watertight wrist-watch casing is composed of a metallic piece (1) having its edges (2) bent up at right angles, and of a thin elastomer layer (3) lining the inner face of piece (1), to which it strongly adheres by means of a metal/elastomer junction. This bottom is secured to the caseband (9) by means of screws (24) which cause the bottom edges (2) to bear against the caseband (9), thereby pressing the thicker periphery of layer 3 against the caseband (9), to form a tight seal between the bottom and the caseband.
The layer (3) is molded with two projections (6) serving as a substitute for the conventional case screws, and with four pillars (7) which hold the dial (18) in abutting engagement with the bottom of a lodging (17).

REFERENCES:
patent: 3719038 (1973-03-01), Klingenberg
patent: 4015422 (1977-04-01), Van Haaften
patent: 4075828 (1978-02-01), Klingenberg
patent: 4136515 (1979-01-01), Thompson et al.

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