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:
Sep. 06, 1977
Filed:
Mar. 13, 1972
Stanley Milton Silver, London, EN;
Paxall, Inc., Chicago, IL (US);
Abstract
A blank which is capable of producing a tube of moisture-resistant material which may be end sealed to form a package. The blank comprises a substratum of card or the like with a delaminable sheeting thereon. The blank has fold lines defining opposable body walls and at least one end closure panel. Flange panels are defined with extensions and allow the formation of a sealable fin. Apparatus and method are provided for side seaming such a blank with outfolding of panels to fuse the sheeting into a tube and delaminate the sheeting from the substratum. Apparatus and method are also provided for end sealing such a tube, with provision for outfolding of gussets and fusion and delamination of the sheeting to provide an end membrane delaminated from the substratum.