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:
Jun. 17, 1986
Filed:
Sep. 15, 1983
Applicant:
Inventors:
John P Eckstein, Neenah, WI (US);
William S Gillespie, Barrington, IL (US);
Suzanne E Schaefer, Neenah, WI (US);
Assignee:
American Can Company, Greenwich, CT (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B29C / ;
U.S. Cl.
CPC ...
156 69 ; 222 81 ; 215232 ;
Abstract
A collapsible dispensing tube has a multi-layer sheet material sealed over its dispensing orifice to provide a hermetically sealed tube. The multi-layer sealant sheet comprises two layers of metal foil separated by a polymer layer firmly adhered to the metal foil layers. A polymeric layer is adhered to the outer surface of one of the metal foil layers and serves to seal the tube orifice. The laminated sheet may be sealed across the orifice by the application of radio-frequency energy.