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:
Dec. 26, 1989
Filed:
Nov. 14, 1988
Lawrence W Ulrich, Cicero, IL (US);
James R Lojewski, Oak Park, IL (US);
Durable Pakaging Corporation, Chicago, IL (US);
Abstract
In an apparatus for sealing the top flaps of a carton having a tape head assembly for applying a strip of self-adhesive sealing tape that extends along the upper portions of the leading and trailing end panels and across the top flaps, a tab forming device for forming a pull tab at a trailing end portion of the strip of sealing tape. The tab forming device includes a housing member having a cavity formed therein in facing relationship to the trailing end portion of the strip of sealing tape. A suction created in the cavity draws the trailing end portion thereinto so as to cause the adhesive surface of the trailing end portion to fold upon itself and form a pull tab. A means for controlling the dispensing of the tape from the roll is provided which includes a spool member which is biased into receiving contact with the outer portion of the roll.