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. 02, 2021
Filed:
Aug. 26, 2020
Roto-die Company, Inc., Eureka, MO (US);
George R. Gates, Ballwin, MO (US);
Charles E. Schomber, Jr., Catawissa, MO (US);
ROTO-DIE COMPANY, INC., St. Louis, MO (US);
Abstract
A magnetizable cylinder has a cylinder body formed from a magnetizable material with an outer cylindrical surface configured to receive a flexible cutting die. The cylinder body has first and second axial ends spaced apart by the outer cylindrical surface and a hollow interior. First and second journals are joined to the cylinder body with interference fits. At least one of the first and second journals has a weep hole extending through the journal into the hollow interior of the cylinder body. The interference fit of the journals to the cylinder body result from thermal changes of at least one of the first journal, the second journal, and the cylinder body prior to joining the first journal to the cylinder body and the second journal the cylinder body.