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. 09, 2000
Filed:
Mar. 12, 1999
Applicant:
Inventor:
Daniel J Berube, Wilton, NH (US);
Assignee:
Nim-Cor, Inc., Nashua, NH (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B65H / ;
U.S. Cl.
CPC ...
2425303 ; 2425711 ; 279-207 ;
Abstract
An expandable airlock shaft with surface mounted roller bearings provides differential core speed slipping capability for adjacent core segments on a common shaft. The shaft may be used with an expandable collet system consisting of a set of relatively short, expandable collets, which are used with spacers where needed to accommodate multiple core segments in any desired arrangement. Alternatively, the roller bearings may be incorporated into the expandable collets, and the shaft configured with an expandable bearing support surface.