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. 07, 1999
Filed:
Nov. 05, 1997
Jeffrey H Lencioni, St. Charles, IL (US);
James P Stevens, Castleton, NY (US);
Sonoco Development, Inc., Hartsville, SC (US);
Abstract
A tamper evident dust cover for a drum bung is provided. The cover includes a cap portion and a sidewall portion extending downwardly from the edge of the cap portion. The cap portion has a pair of frangible lines which extend to its edges. The sidewall portion has an inner and outer surface, and a pair of frangible lines on one surface which communicate with the frangible lines on the cap portion. A locking ring is integrally formed with and extending downwardly from the sidewall portion. The locking ring is adapted to hinge at its juncture with the sidewall portion between two positions. In the first position, the locking ring is positioned downwardly and inwardly below the hollow area formed by the cap and the sidewall. When the locking ring is in the second position, it is positioned upwardly and inwardly into the hollow area of the cover. In the second position, the locking ring is capable of engaging the lip of a drum bung to prevent removal of the cover A pull tab extends outwardly from the sidewall. When the pull tab is pulled, part of the sidewall portion and the cap portion tear from the cover along the frangible lines.