Method and apparatus for assembling a watch case having improved

Details Method and apparatus for assembling a watch case having improved Method and apparatus for assembling a watch case having improved

1982-06-24

1984-12-18

Goldberg, Howard N.

Metal working

Means to assemble or disassemble

Puller or pusher means, contained force multiplying operator

29432, 156 69, 156 731, 1563031, 1563096, 264 23, 264249, 368204, B23P 1300

Patent

active

044883455

ABSTRACT:
A cover 20 for a cell cavity 7 in a plastic watch case 2 is provided on its periphery with three lugs 28. The back surface 4 of the case is provided with three recesses 12 into which the lugs can enter freely. With the aid of a tool 38, the cover is rotated while ultrasonic or thermal energy is applied to the lugs. Thanks to this energy, the lugs themselves deform and move into the thermoplastic material in order thereby to form three undercuts. A bayonet joint closure assembly is thus formed. See FIG. 5.

REFERENCES:
patent: 2588395 (1952-03-01), Lannen
patent: 3222860 (1965-12-01), Raval
patent: 3597913 (1971-08-01), Fujimori
patent: 3608304 (1971-09-01), Schaad
patent: 4106962 (1978-08-01), Adams et al.
patent: 4232622 (1980-11-01), Weierman et al.

Affiliated with

Also associated with

Rating

Method and apparatus for assembling a watch case having improved does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for assembling a watch case having improved, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for assembling a watch case having improved will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1982424