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:
Apr. 15, 1986
Filed:
Mar. 15, 1985
Robert A Ferrell, Shelbyville, IN (US);
Minigrip, Inc., Orangeburg, NY (US);
Abstract
Apparatus and method for making bag material from a continuous length of sheet. Side portions of the sheet are turned from opposite sides, and the sheet advanced through a joining station wherein extruded complementary separable fastener profile strips are joined to face of the flange portions which are directed away from the body of the sheet. The sheet carrying the joined fastener strips may then be advanced through a curing station. Subsequently the sheet and fastener strip assembly is conducted through a spreading station wherein the flange portions are spread apart. Downstream from the spreading station the spread sheet may be folded upon itself in a folding station wherein the profiles of the fastener strips may be interengaged, and the folded material may then be wound into a storage roll.