Process for molding noise-attenuating protuberances on an...

Details Process for molding noise-attenuating protuberances on an... Process for molding noise-attenuating protuberances on an...

2007-11-01

2010-11-16

Tucker, Philip C (Department: 1791)

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

Shaping against forming surface

C264S328300, C264S501000, C425S037000, C425S043000, C425S052000, C425S054000

Reexamination Certificate

active

07833461

ABSTRACT:
Process for molding and vulcanizing a tire, in which a tire blank is placed in a curing press including a mold intended to form the outer shape of the tire, and a pressing member for transmitting the molding pressure and the heat needed to vulcanize the internal portion of the tire blank. A removable elastic membrane, which includes perforations passing completely therethrough, is interposed, during the molding and the vulcanizing step, between the inner surface of the tire and the pressing member, so as to form, by the constituent material of the internal wall of the tire flowing into the perforations, noise-attenuating protuberances distributed over the internal surface of the tire.

REFERENCES:
patent: 3170195 (1965-02-01), Knox
patent: 3822857 (1974-07-01), Tanie
patent: 4399851 (1983-08-01), Bschorr
patent: 4715801 (1987-12-01), Montierth
patent: 5531582 (1996-07-01), Klinkhammer
patent: 6343843 (2002-02-01), Nishikawa
patent: 196 19 859 (1997-11-01), None
patent: 2006/117115 (2006-05-01), None
“Tetrafluoroethylene Copolymers (Overview)”, Teruo Takakura, Polymeric Materials Encyclopedia, accessed via http://www.polymersnetbase.com/pme/article—print.asp?id=11042&hits= on Jan. 4, 2010.

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