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:
Jun. 18, 1991
Filed:
Oct. 10, 1989
Applicant:
Inventors:
Wolfgang F Mueller, Wappingers Falls, NY (US);
George Popp, Pleasant Valley, NY (US);
George B Vandergheynst, Lagrangeville, NY (US);
Assignee:
International Business Machines Corporation, Armonk, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B26D / ;
U.S. Cl.
CPC ...
83 13 ; 83576 ; 83577 ; 310 15 ; 310 34 ; 335209 ; 335230 ;
Abstract
A punching mechanism includes a permanent magnet and a pole-piece connected to one pole of the permanent magnet and spaced from the other pole by a gap. A movable coil is disposed at least partially within the gap. A punch actuator is connected to the movable coil, and conductors are provided for conducting an electrical current to the coil. Current is supplied to the coil to effect a punching action.