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:
Apr. 27, 2004
Filed:
Sep. 09, 2002
Applicant:
Inventors:
Davis B. Dwinell, Carol Stream, IL (US);
Cornelis R. Van De Klippe, West, IL (US);
Assignee:
American Flange & Mfg. Co., Inc, Carol Stream IL, US;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B65D 5/120 ; B65D 5/300 ; B65D 4/318 ; B65D 4/116 ; B65D 1/734 ;
U.S. Cl.
CPC ...
B65D 5/120 ; B65D 5/300 ; B65D 4/318 ; B65D 4/116 ; B65D 1/734 ;
Abstract
Closure construction for blow molded drums having an upstanding internally threaded neck. A closure plug with sealing gasket is screwed into the neck to provide a liquid tight seal. A plastic tamper evident overseal completely covers the plug and neck and is manually snapped in place so as to interlockingly engage the plug making both the plug wrench engaging structure and the overseal interlocking structure inaccessible without destruction of the overseal. A tear strip opening means is provided for authorized access.