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:
May. 04, 1976
Filed:
Aug. 26, 1975
Albert E Newton, Beverly, MA (US);
USM Corporation, Boston, MA (US);
Abstract
A hand-held, one-piece tool of single stamping design is adapted to be fulcrumed on the chime or rim of a container having an end closure, especially a closure defined by a weakening line. Relative upward pivotal operating movement of a handle portion about a first fulcrum portion acting on an outside wall of the container concentrates initial opening by a cam end portion of the tool bearing on the closure adjacent to its weakening line, and further movement of the handle shifts its fulcrum to a second fulcrum portion of the tool acting on the closure rim whereby the cam end portion bears progressively on the closure and away from its rim to rupture the weakening line and easily deflect the closure relatively inwardly of the container.