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
2008-03-24
2011-12-06
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
C264S261000, C264S275000, C264S277000
Reexamination Certificate
active
08071003
ABSTRACT:
A method of manufacturing a vibration damping bushing wherein after setting a main shaft member on a lower mold, an medial sleeve is set to be disposed about the main shaft member, and a plurality of sections are moved forward in a centripetal direction to form an intermediate mold together, and then an upper mold is superposed onto the intermediate mold to form a mold cavity therein. At least one positioning protrusion is formed on a cavity defining face, being discontinuous in a circumferential direction, while being located at either semi-circumference of the cavity defining face with any diametric line interposed therebetween. The medial sleeve is set in position in an axis-perpendicular direction within the mold cavity by holding the positioning protrusions in contact against an outer peripheral face of the medial sleeve. A vibration damping bushing manufactured by this method is also disclosed.
REFERENCES:
patent: 2351329 (1944-06-01), Gerstenmaier
patent: 2689755 (1954-09-01), Krotz
patent: 3608049 (1971-09-01), Tavella
patent: 6394779 (2002-05-01), Komazawa et al.
patent: 03065313 (1991-03-01), None
patent: A-03-65313 (1991-03-01), None
patent: A-9-72365 (1997-03-01), None
patent: A-11-141612 (1999-05-01), None
patent: 2000043062 (2000-02-01), None
Lee Edmund H.
Oliff & Berridg,e PLC
Tokai Rubber Industries Ltd.
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