Portable watch

Details Portable watch Portable watch

2006-09-26

2006-09-26

Gray, David M. (Department: 2841)

Horology: time measuring systems or devices

Cases

With protection means

C368S288000, C368S308000, C368S319000

Reexamination Certificate

active

07111977

ABSTRACT:
To provide a portable watch enabling components exchange around a crown while retaining the waterproof capability of a winding-stem-pipe attachment section when the screw lock capability is reduced. A winding stem pipe is screwed into a pipe-attachment hole of a case band for attachment in a removable manner. To an intracase-band end section of this winding stem pipe, provided is a screw section being a reverse screw to a first male screw section of the winding stem pipe screwed into the pipe-attachment hole. To this screw section, a clamp ring is screwed into in a removable manner. The case band is sandwiched by the ring and the extracase-band end section of the winding stem pipe screwed with the crown, and a waterproof gasket is sandwiched between the case band and the winding stem pipe. When the winding stem pipe receives the rotation forces in the loosening direction through the operation of the crown, the clamp ring is clamped to a greater degree, and the winding stem pipe does not loosen to a greater degree. As such, characteristically, there is no need for adhesive attachment of the winding stem pipe.

REFERENCES:
patent: 5259278 (1993-11-01), Leas
patent: 5492937 (1996-02-01), Bogentoft et al.
patent: 5598383 (1997-01-01), Li
patent: 6314844 (2001-11-01), Warner
patent: 6581494 (2003-06-01), Sechler
patent: 2002/0033069 (2002-03-01), Sechler
patent: 57046181 (1982-03-01), None

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