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. 31, 1978
Filed:
May. 03, 1977
Waldemar Schilke, Trenton, CA;
Ladislav Hujik, Batawa, CA;
Bata Shoe Company, Inc., Belcamp, MD (US);
Abstract
Method for making a sole for an article of footwear including an outer sole with a lightweight filler therein, an inner sole above the outer sole and a foxing strip integral with the inner sole and surrounding the periphery of the outer sole. The sole is produced using a dummy last with a recess for receiving the filler, a clamping last, mold sides and a bottom mold piston. The outer sole is molded first using the dummy last and filler, a first portion of the mold sides and the mold piston to define a first mold cavity. Then, the inner sole is molded using the clamping last, a lasted upper or the like, a second portion of the mold sides, and the outer sole on the mold piston to define a second mold cavity. By providing suitable recesses in the dummy last and in the first portion of the mold sides, one or more projections which extend through the foxing strip are molded in the first mold cavity.