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:
Aug. 28, 2018
Filed:
Oct. 06, 2015
Applicant:
National Machinery Llc, Tiffin, OH (US);
Inventor:
Aaron T. Hall, Carey, OH (US);
Assignee:
NATIONAL MACHINERY LLC, Tiffin, OH (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B23D 23/00 (2006.01); B26D 3/16 (2006.01); B21K 27/06 (2006.01); B26D 5/16 (2006.01);
U.S. Cl.
CPC ...
B23D 23/00 (2013.01); B21K 27/06 (2013.01); B26D 5/16 (2013.01); B26D 3/16 (2013.01);
Abstract
An impact cutoff device for a progressive high speed cold former having a low mass rigid cutter carriage, a torsion spring for carriage return, and an articulated, oil lubricated and dampened carriage drive block on a pivoting drive lever serving to reduce impact induced vibration otherwise leading to fatigue failure and wear of the various cutter parts and consequent loss of cutoff accuracy and quality.