Plastic and nonmetallic article shaping or treating: processes – Mechanical shaping or molding to form or reform shaped article – To produce composite – plural part or multilayered article
Reexamination Certificate
2011-08-16
2011-08-16
Lee, Edmund H. (Department: 1744)
Plastic and nonmetallic article shaping or treating: processes
Mechanical shaping or molding to form or reform shaped article
To produce composite, plural part or multilayered article
C264S275000, C264S294000, C264S328100, C264S328700
Reexamination Certificate
active
07998391
ABSTRACT:
A method of fabricating an anti-noise earplug having an inner tip serving as a core and an outer tip coupled to the inner tip to surround the inner tip and inserted into an ear includes the steps of: (a) shaping the inner tip; (b) fixing the inner tip to an upper mold for shaping the outer tip; (c) disposing the upper mold to face a lower mold having a cavity for shaping the outer tip; (d) injecting a resin composition for forming the outer tip into the lower mold; (e) pressing down the upper mold to the lower mold; (f) curing the resin composition to couple the outer tip to the inner tip; and (g) separating the upper mold from the lower mold and then separating the earplug, in which the outer tip is coupled to the inner tip as a body, from the lower mold. In fabricating the earplug, the inner tip and the outer tip can be molded in an in-line process, thereby improving the fabrication efficiency.
REFERENCES:
patent: 5044463 (1991-09-01), Carr
patent: 5188123 (1993-02-01), Gardner, Jr.
patent: 5792998 (1998-08-01), Gardner et al.
patent: 5799658 (1998-09-01), Falco
patent: 6264870 (2001-07-01), Håkansson
patent: 7192544 (2007-03-01), Jenkins et al.
patent: 7220372 (2007-05-01), Woo et al.
patent: 7727433 (2010-06-01), Knauer et al.
patent: 2006/0138691 (2006-06-01), Knauer et al.
patent: 11514560 (1999-12-01), None
patent: 1020070039832 (2008-10-01), None
Chapin IP Law LLC
Lee Edmund H.
LandOfFree
Method of fabricating an antinoise earplug 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 of fabricating an antinoise earplug, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of fabricating an antinoise earplug will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2658497