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:
Jul. 06, 2021
Filed:
Jun. 07, 2019
Applicant:
Robert Short, Antrim, NH (US);
Inventor:
Robert Short, Antrim, NH (US);
Assignee:
VALMET TECHNOLOGIES OY, Espoo, FI;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D21D 1/30 (2006.01);
U.S. Cl.
CPC ...
D21D 1/303 (2013.01); D21D 1/30 (2013.01); D21D 1/306 (2013.01);
Abstract
A hub and a member, the member having a central opening. The hub is received in the member central opening. The hub has a center, and a hub axis through the center. The hub also has a splined exterior with a plurality of splines, each spline having a spline surface, and the member central opening has internal splines that engage with the hub splined exterior. At least one of the hub splines has a wear indicator, the wear indicator comprising a surface mark that extends along a portion of the spline surface in the same direction as the hub axis.