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. 25, 2010
Filed:
Jan. 16, 2007
Applicants:
Xiaoquan Luo, Bronx, NY (US);
Peter Chen, West Windsor, NJ (US);
Jungkun Lee, Edison, NJ (US);
Inventors:
Assignee:
Officemate International Corporation, Edison, NJ (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B26F 1/04 (2006.01); B26F 1/32 (2006.01); B26D 5/08 (2006.01);
U.S. Cl.
CPC ...
Abstract
A punch apparatus for punching holes through a paper stack. The apparatus has a rotationally attached lever handle. The lever handle has a handle end, a contact end, and a rotation axis between the handle end and the contact end. When a downward force is applied to the handle end, the lever handle rotates about the rotation axis. The contact end of the lever handle then exerts a force on a lever arm which in turn rotates a main shaft and attached pressure plate. As a result, the pressure plate exerts a punching force down on punch pins causing them to punch down through the paper stack.