Crown lock structure and timepiece having crown lock structure

Details Crown lock structure and timepiece having crown lock structure Crown lock structure and timepiece having crown lock structure

2008-04-15

2008-04-15

Bradley, P. Austin (Department: 2833)

Horology: time measuring systems or devices

Cases

With crown or stem details

C368S319000, C368S216000

Reexamination Certificate

active

07357569

ABSTRACT:
A crown lock structure for a timepiece has a crown having an inner surface provided with a threaded section and a connecting assembly for removably connecting the crown to a case of the timepiece. The connecting assembly comprises a tubular member for integral connection to the timepiece case and a tubular insert removably connected to the tubular member. The tubular member has a first tubular portion for insertion into a through-hole of the timepiece case and a second tubular portion integral with the first tubular portion and removably connected to the tubular insert so as to prevent relative rotation between the tubular member and the tubular insert. The tubular insert has a threaded section for threaded engagement with the threaded section of the crown to removably connect the crown to the timepiece case.

REFERENCES:
patent: 1295023 (1919-02-01), Golden
patent: 1505521 (1924-08-01), Kresser
patent: 2309428 (1943-01-01), Aegler
patent: 2482317 (1949-09-01), Borer
patent: 3362154 (1968-01-01), Perret
patent: 3535869 (1970-10-01), Strigini et al.
patent: 4313187 (1982-01-01), Waki et al.
patent: 5257247 (1993-10-01), Miche et al.
patent: 5598383 (1997-01-01), Li
patent: 6872899 (2005-03-01), Oshio et al.
patent: 6886975 (2005-05-01), Hiranuma et al.
patent: 57046181 (1982-03-01), None

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