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:
Jul. 13, 1982
Filed:
Feb. 19, 1980
Donald D Cochran, Bartlett, IL (US);
National Can Corporation, Chicago, IL (US);
Abstract
In a seal removal station positioned along a bottle conveyor line upstream of a filling operation, oversized adhesive seals covering the mouths of plastic bottles are lifted off each bottle and transferred to a collector bin. Vacuum pressure generated in a plenum chamber formed in a stator member is transmitted to the non-adhesive upper surface of each seal through a perforated rotor surface rotating beneath the stator. Air jet means directing fluid pressure upward against overlapping marginal portions of each seal and guide surfaces to flatten out curled portions of the seal are utilized to assure seal lift off by virtue of fluid pressure differentials. A removed seal is kept adhered to the moving rotor surface by the maintenance of vacuum pressure above the seal. Adjacent to the collector bin, a further plenum having pressure air therein communicates through the rotor perforations with the adhered seal to propel the seal into the bin.