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:
Sep. 16, 2014
Filed:
Sep. 12, 2011
Joseph J. Viavattine, Vadnais Heights, MN (US);
Paul B. Aamodt, Minnetonka, MN (US);
Sandeep Saurkar, St. Louis Park, MN (US);
Dona M. Suardini, Plymouth, MN (US);
Brent J. Torgerson, Stillwater, MN (US);
Joseph J. Viavattine, Vadnais Heights, MN (US);
Paul B. Aamodt, Minnetonka, MN (US);
Sandeep Saurkar, St. Louis Park, MN (US);
Dona M. Suardini, Plymouth, MN (US);
Brent J. Torgerson, Stillwater, MN (US);
Medtronic, Inc, Minneapolis, MN (US);
Abstract
A system for the automated coiling of a jelly roll electrode assembly for controlled assembly and tensioning of jelly roll assembly is provided. The system includes: a shuttle, and a mandrel to which electrodes are welded; a base, mateable with the shuttle and on which the battery head assembly is mounted for welding to the mandrel; and a coiling device. The coiling device has an upper spool, a lower spool, holding a separator strip and a platform between the two holding the base. The separator strip is threaded through a passage in the mandrel separating positive and negative portions. Rotating the mandrel coils the positive electrode, the separator strip and the negative electrode to coil around the mandrel. The coiling device may include a feedback loop braking one or both spools and allowing the coiling tension to be programmed to a desired level.