Water resistant seal for watch case

Details Water resistant seal for watch case Water resistant seal for watch case

1985-11-22

1987-05-26

Roskoski, Bernard

Horology: time measuring systems or devices

Cases

With bezel or crystal details

368294, G04B 3700

Patent

active

046681019

ABSTRACT:
An improvement in a water resistant seal for a watch case with a bezel having a peripheral wall and a lens having a peripheral edge. The wall has an inwardly protruding flange and the lens edge has an outwardly protruding flange, the flanges being diagonally offset from one another. An elastomeric gasket of L-shaped cross section is clamped between the lens and the bezel. The gasket has an upstanding leg deformed in opposite lateral directions, by the flanges with a shearing force across the gasket leg, and is dimensioned to provide clearances which allow for manufacturing variations in size of the lens and bezel, while still maintaining a water resistant seal.

REFERENCES:
patent: 2854815 (1958-10-01), Piquerez
patent: 4456388 (1984-06-01), Matsumoto
patent: 4487513 (1984-12-01), Matsumoto

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