Plastic and nonmetallic article shaping or treating: processes – With severing – removing material from preform mechanically,... – Making hole or aperture in article
Reexamination Certificate
2006-02-14
2006-02-14
Staicovici, Stefan (Department: 1732)
Plastic and nonmetallic article shaping or treating: processes
With severing, removing material from preform mechanically,...
Making hole or aperture in article
C264S255000, C264S275000, C264S271100, C264S279100, C264S317000, C264S318000, C264S325000, C264S328100
Reexamination Certificate
active
06998082
ABSTRACT:
A method for manufacturing of water-proof cover for zipper tab includes taking a zipper where holes are provided on the tapes thereof at the position adjacent to one end of the tooth-chains; covering an upper mold provided with a sprue thereon and a lower mold on the holes on the tapes, and inserting a core mold in-between the groove and tooth-chains; injecting plastic from the sprue and detaching the upper and lower molds after the plastic is solidified to a desired shape, such that a decorative cover is formed at one end of the tooth-chains; and mounting a zipper tab from the upside of the tooth-chains, and stapling a stopper to each end of the combined tooth-chains. Accordingly, when the zipper is drawn upwardly, the zipper tab can be positioned inside the decorative cover, such that the connecting portion of the tooth-chains and the zipper tab can be covered by the decorative cover and therefore prevent from being wetted by rain.
REFERENCES:
patent: 6240604 (2001-06-01), Fox
patent: 6430785 (2002-08-01), Matsushima et al.
Derwent Abstract, 2000-398720 “Manufacture of Pull Tabs of Polychrome Plastic/Rubber Zipper”, 2000.
Derwent Abstract, 2000-348853 “Method for Producing a Pull Tab of a Multi-Colored Plastic (Rubber) Zipper”, 2000.
Lei Leong C.
Staicovici Stefan
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