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:
Sep. 29, 2020
Filed:
Sep. 14, 2017
Applicant:
Acument Intellectual Properties, Llc, Sterling Heights, MI (US);
Inventor:
David C. Goss, Rockford, IL (US);
Assignee:
ACUMENT INTELLECTUAL PROPERTIES, LLC, Sterling Heights, MI (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
F16B 23/00 (2006.01); F16D 1/10 (2006.01); B25B 15/00 (2006.01); B21K 1/46 (2006.01); B21J 13/00 (2006.01);
U.S. Cl.
CPC ...
F16D 1/101 (2013.01); B21J 13/00 (2013.01); B21K 1/463 (2013.01); B25B 15/004 (2013.01); B25B 15/005 (2013.01); F16B 23/003 (2013.01); F16D 1/10 (2013.01); F16D 2001/102 (2013.01);
Abstract
A drive system with full surface drive contact. The drive system tends to maximize the surface contact pattern or area at typical bit-recess reaction (drive) torque values, thereby tending to minimize bit-recess surface contact stresses, coating damage, recess ream and premature bit fatigue failure. The drive system comprises a fastener and/or bit having drive surfaces formed of either polygon involutes or a single arc construction. A punch is also provided for forming a recess in either the fastener or the bit, wherein the punch has corresponding surfaces.