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:
Aug. 17, 2004
Filed:
Feb. 20, 2002
Anthony Jairam, Sunrise, FL (US);
Bikram Sohi, Wheeling, IL (US);
ACCO Brands, Inc., Lincolnshire, IL (US);
Abstract
A stapler comprising a base defining a horizontal plane, a cartridge assembly coupled to the base at a cartridge attachment point, the cartridge assembly including a ram, and a lever arm pivotally coupled to the base at a lever pivot axis. The lever arm includes a grip for receiving a manual input from a user, and the lever arm is coupled to the ram at a ram input in order to provide a drive force. The stapler includes an inherent force factor, calculated as the horizontal distance from the lever pivot axis to the end of the lever arm divided by the horizontal distance from the lever pivot axis to the ram input, of at least 3.8. Preferably, the lever arm defines an effective lever axis that is at least about 65° offset from the ram axis when in the static position. When stapling, the effective lever axis is preferably offset greater than about 95° when the lever arm is compressed to the fully stapled position.