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, 1997
Filed:
Jul. 17, 1995
Clark A Levsen, Shawnee, KS (US);
David A Rausch, Olathe, KS (US);
Kevin Kelly, Kansas City, MO (US);
Hantover, Inc., Kansas City, MO (US);
Abstract
A vacuum packaging apparatus is provided for use in evacuating the air in an open-ended package and sealing the evacuated package. The apparatus includes structure defining a chamber sized only for receipt of the open end of the package with the remainder of the package disposed outside of the chamber, and a vacuum pump for evacuating the chamber and the package through the open end. The apparatus also includes a heating element for sealing the open end of the bag. The sealing element includes a seal bar supported for movement within the chamber between a retracted position removed from pressing engagement with the package and an extended position in pressing engagement with the package and a sealing wire supported on and extending across the seal bar. An electrical circuit supplies current to the sealing wire for heating the wire to a temperature sufficient to seal the package when the seal bar is in pressing engagement with the package.