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. 19, 1989
Filed:
Nov. 30, 1987
Paul E Grindrod, Madison, WI (US);
Ray H Griesbach, Monona, WI (US);
Darrell G Cornish, McFarland, WI (US);
Oscar Mayer Foods Corporation, Madison, WI (US);
Abstract
A continuous method of enclosing a proteinaceous product in a vacuumized and hermetically sealed package having a peelable hermetic reclosure and having a body member of semi-rigid preformed plastic with a first planar marginal portion and a central portion shaped to provide a packaging chamber. The package also has a flexible dimensionally stable base member having a corresponding second planar marginal portion and a central portion to provide a closure for said packaging chamber. The method requires placing a sufficient quantity of proteinaceous product in the central portion of the body member to substantially fill the central portion when the package is completed, positioning the first planar marginal portion face-to-face to the corresponding second planar marginal portion, vacuumizing the assembly, and hermetically sealing the package. The improvement is applying an adhesive to either the first planar marginal portion to provide at least a portion of the hermetic seal wherein said adhesive is a high molecular weight pressure sensitive hot melt adhesive having a viscosity of between 5,000 to 100,000 centipoise at 300.degree. F. and said adhesive provides a peelable hermetic reclosure.