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:
Nov. 05, 1991
Filed:
Apr. 18, 1990
Norbert Majerus, Akron, OH (US);
John S Rambacher, Akron, OH (US);
The Goodyear Tire & Rubber Company, Akron, OH (US);
Abstract
A ring tread (12) or a continuous tread (16) may be injection molded in a generally cylindrical segmental mold (20) having a core (42) and radially movable segments (46) forming a mold cavity (54). A container ring (60) is movable into engagement with the segments (46) during closing of the segmental mold (20) to retain the segments (46) during closing of the segmental mold (20) to retain the segments (46) in position during injection and curing. The container ring (60) may have an opening for a continuous tread section to extend from the mold cavity (54) through the side of the container ring (60) and through a space between two of the segments (46). Roller supports on the core (42) support the continuous tread (16) when the segmental mold (20) is opened and sections of the continuous tread (16) are shifted circumferentially through the mold cavity (54).