Horology: time measuring systems or devices – Cases – With bezel or crystal details
Reexamination Certificate
2006-05-30
2006-05-30
Miska, Vit (Department: 2841)
Horology: time measuring systems or devices
Cases
With bezel or crystal details
C368S295000
Reexamination Certificate
active
07052173
ABSTRACT:
To provide a timepiece whose bezel can be easily attached and detached by a user without requiring a special-purpose tool. A male screw, an annular groove disposed downwardly away from the male screw and an annular clearance groove positioned between the annular groove and the male screw are provided on the outer periphery of an annular convex of a case band to which a cover glass is attached. A soft and resilient engagement ring is fitted to the annular groove such that the engagement ring projects out from the annular groove. A bezel includes on its inner periphery a female screw disposed within the clearance groove for releasably engaging with the male screw and an annular engagement convex having a stopper slope. The stopper slope is disposed below the female screw to tightly contact with the outer periphery of the ring. The bezel attached in a condition in which the ring tightly contacts with the stopper slope is rotated in a loosening direction of the bezel through a screw-engagement between the screws. Subsequently, the engagement convex passes through the ring upwardly to be positioned above the ring, and the bezel is finally separated.
REFERENCES:
patent: 5122997 (1992-06-01), Schneider et al.
patent: 5541895 (1996-07-01), Nussbaum
patent: 5822279 (1998-10-01), Cuche et al.
patent: 6819632 (2004-11-01), Paul
patent: 6821014 (2004-11-01), Hiranuma et al.
patent: 5312972 (1993-11-01), None
Hiranuma Haruki
Omori Nobukazu
Yoshikawa Hisamitsu
Adams & Wilks
Hagins Samuel L
Miska Vit
Seiko Instruments Inc.
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