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:
Oct. 01, 1991
Filed:
Aug. 24, 1990
Douglas E Pherigo, Loves Park, IL (US);
J. L. Clark, Inc., Rockford, IL (US);
Abstract
The hinged flap of a plastic container closure is molded while in an open position and, during molding of the flap, an elongated tear-away strip is formed along the front edge of the flap and is integrally connected to the flap by tearable webs. After the newly molded flap has first been closed, the strip is anchored releasably to the top panel of the closure and prevents the flap from opening during shipment of the container, the strip also serving as a visual indicator that the seal of the closure is intact. Anchoring of the strip is effected by pins which project upwardly from the panel and which are ultrasonically welded to the lower side of the strip. The closure is opened by lifting and pulling on the strip to break the welds at the pins and thereby enable the strip to be torn completely away from the top panel and the flap and to free the flap for swinging to an open position. The absence of the strip or the presence of a partially torn strip indicates that tampering has occurred and that the seal may not be intact.