Metal working – Means to assemble or disassemble – Puller or pusher means – contained force multiplying operator
Patent
1993-03-29
1994-08-30
Vo, Peter Dungba
Metal working
Means to assemble or disassemble
Puller or pusher means, contained force multiplying operator
29DIG37, 368282, B23P 1902, G04D 300, G04B 3716
Patent
active
053415523
ABSTRACT:
The caseband (2) of the watchcase (1) comprises one or two hollows (20, 25) for receiving the end of each length of watchband. The ends of the watchband are held by attachments such as claws (30) or recesses (32, 25), matching notches (40) or protuberances (41, 42) situated near the ends of the watchband, and disposed on extensions of the back (3) of the watchcase or on intermediate parts (33, 43, 44, 50, 56) integral with the watchcase back or with the caseband. This arrangement not only facilitates the manufacture and finishing of the watchcase by eliminating any projecting elements which would interfere with production on automatic machines, but also enables the watchband attachment to be made more attractive.
REFERENCES:
patent: 1380812 (1921-06-01), Lathrop
patent: 2225474 (1938-07-01), Guild
patent: 3242664 (1966-03-01), Lederrey
patent: 4034552 (1977-07-01), Davidson
patent: 4417821 (1983-11-01), Herchenbach
patent: 4659897 (1987-04-01), Takasugi
patent: 4903253 (1990-02-01), Nikles et al.
patent: 5077710 (1991-12-01), Gogniat
Patent Abstracts of Japan, vol. 6, No. 168 (P-139) Nov. 1982.
Dungba Vo Peter
Isafrance
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