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:
Feb. 21, 1978
Filed:
Mar. 17, 1977
Martin Kaplan, Lexington, MA (US);
Joseph V Tassone, Milford, MA (US);
Compo Industries, Inc., Waltham, MA (US);
Abstract
The method of lasting footwear with liquid latex comprising depositing the latex in a wet, liquid, low-viscosity, nonadhesive form on the surface of the feed roll, of a pair of cooperating feed rolls of a progressive-type lasting machine, which normally has contact with the inner side of the lasting margin of the upper material at a place apart from the lasting margin, while the deposited latex is traveling from the place of deposit on the surface of the feed roll having contact with the inner side of the lasting margin to the place of contact with the lasting margin, spreading it uniformly thereon and rendering it partially coagulated and adhesive, transferring the partially coagulated adhesive latex to the lasting margin at the place of contact and, as the latex-coated surface of the lasting margin is released, pressing it against the latex-receptive surface of the insole, and apparatus for carrying out the method.