The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 05, 1993
Filed:
Apr. 08, 1992
Hidetoshi Arima, Obu, JP;
Tokai Kogyo Kabushiki Kaisha, Obu, JP;
Abstract
A process and apparatus for manufacturing a molding including a portion formed of hybrid of hard rubber and sponge rubber. The process includes steps of introducing the hard rubber and the sponge rubber into a conduit through a plurality of first ports and a plurality of second ports positioned between the first ports, thereby to form hybrid of the hard rubber and the sponge rubber in which a plurality of hard rubber filaments are uniformly embedded in the sponge rubber, and extruding the hybrid from a extrusion opening to form the hybrid portion. The apparatus includes a flow conduit for forming the hybrid, the flow conduit communicating with a sponge rubber feed pipe through a plurality of first ports and communicating with a hard rubber feed pipe through a plurality of second ports positioned between the first ports.