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. 23, 2003
Filed:
Feb. 15, 2002
Brian R. Stork, Washington, MO (US);
Stork Fabricators, Inc., Washington, MO (US);
Abstract
An improved film sealing and cutting apparatus ( ) for use with a shrink-wrap machine that individually wraps articles ( ) sequentially with shrink-wrap film material ( ) of different possible thickness and composition, especially thick, tough film which would be difficult to seal. The apparatus ( ) includes two pairs of selectively heated rollers ( ). Overlapping layers ( ) of film material wrapped around an article are passed between peripheral surfaces of each roller pair. The first roller pair forms a thermal conditioning pre-seal ( ) between opposing surfaces of the overlapping layers by application of heat and pressure along the peripheral surfaces of the first roller pair. The second roller pair then completes the seal and cuts through the opposing surfaces, leaving a margin between a cutting path formed by the peripheral surfaces of the second roller pair and the seal.