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:
Nov. 04, 1997
Filed:
Apr. 09, 1996
Edward J Schwarz, Woodbury, MN (US);
Michael J Cavanagh, Woodbury, MN (US);
Craig D Thompson, Inver Grove Heights, MN (US);
Lloyd S Vasilakes, Stillwater, MN (US);
Van E Jensen, Stillwater, MN (US);
Minnesota Mining and Manufacturing Company, St. Paul, MN (US);
Abstract
A roll supporting hub is adapted for acceptance of a plurality of rolls (one at a time), with each roll having a different predefined core width. The hub includes a hub body with a plurality of core support surfaces spaced circumferentially about a central rotation axis. One or more of those surfaces engage the core of the roll to secure the roll and hub together for coupled rotation. A stop surface on the hub body engages a first radial side of the core, while a radially retractable retainer surface engages a second radial side of the core. The retainer surface is secured to the hub body in one of a plurality of possible predefined axially disposed positions relative to the stop surface, each of which corresponds to one of the predetermined core widths of the roll being supported by the hub. The retainer surface is supported by a spring which is retractable within a slot extending axially between opposed support surfaces on the hub body.