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:
Mar. 30, 2021
Filed:
Nov. 22, 2017
Applicant:
John M. Jones, Pooler, GA (US);
Inventor:
John M. Jones, Pooler, GA (US);
Assignee:
GREAT DANE LLC, Chicago, IL (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B62D 21/20 (2006.01); B62D 53/06 (2006.01); B62D 53/08 (2006.01); B62D 25/20 (2006.01);
U.S. Cl.
CPC ...
B62D 53/067 (2013.01); B62D 21/20 (2013.01); B62D 53/0842 (2013.01); B62D 25/209 (2013.01); B62D 53/061 (2013.01);
Abstract
An upper coupler for a semi-trailer has a generally planar bottom plate. A kingpin attaches thereto to couple with a fifth wheel of a tractor. A reinforcement member extends across a width of the bottom plate to reduce bending of the bottom plate as it rests on the fifth wheel of the tractor. Along the reinforcement member's length, the reinforcement member has varying second moments of area taken in cross sections perpendicular to the reinforcement member's length.