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:
Oct. 11, 2011
Filed:
Dec. 09, 2003
James Rohl, Prescott, WI (US);
Michael Rebrovich, Lino Lakes, MN (US);
Gregory J. Sherwood, North Oaks, MN (US);
James Rohl, Prescott, WI (US);
Michael Rebrovich, Lino Lakes, MN (US);
Gregory J. Sherwood, North Oaks, MN (US);
Cardiac Pacemakers, Inc., St. Paul, MN (US);
Abstract
A punch and die apparatus and a method and apparatus for punching a capacitor electrode layer. A method includes placing a capacitor material sheet between a punch and a die, the punch guided by a punch guide, there being no stripper plate between the punch guide and the die, and actuating the punch to punch an electrode layer out of the sheet. An apparatus includes a die having a die hole, a punch guide, and a punch located within the punch guide. The punch guide and the die have a fixed distance therebetween such that there is no compression on a work piece placed between the die and the punch before the punch contacts the workpiece.