Bottles and jars – Closures – Cap type
Reexamination Certificate
2008-05-06
2008-05-06
Hylton, Robin A. (Department: 3781)
Bottles and jars
Closures
Cap type
C215S252000, C215S341000, C215S343000, C264S268000
Reexamination Certificate
active
11217989
ABSTRACT:
A closure cap and method of making the same wherein an annular or ring-shaped gasket is injection molded onto the inner surface of a cap shell formed of plastic or metal. The annular or ring-shaped gasket includes radially extending tabs integrally formed therewith, one of said tabs being formed at a location wherein the plastic melt is fed to an annular gasket-forming channel in a mold core and another of said tabs being formed at the location wherein plastic melt is discharged from said channel. Preferably, said other tab includes a cold well formation which communicates with the annular gasket through a connecting portion of reduced cross-sectional area with respect to the cross-sectional areas of both the gasket and the cold well formation.
REFERENCES:
patent: 2387439 (1945-10-01), Warth et al.
patent: 2823837 (1958-02-01), Heinle
patent: 3689625 (1972-10-01), Zipper
patent: 4697716 (1987-10-01), Mumford
patent: 5839592 (1998-11-01), Hayes
patent: 6103170 (2000-08-01), Gregory
patent: 6964346 (2005-11-01), Taber et al.
patent: 2235184 (1991-02-01), None
Kras Stephen B.
Taber James
Cook Alex McFarron Manzo Cummings & Mehler, Ltd.
Hylton Robin A.
Silgan Holdings Inc.
LandOfFree
Closure cap with injection molded annular gasket and method... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Closure cap with injection molded annular gasket and method..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Closure cap with injection molded annular gasket and method... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3916929