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. 19, 2022
Filed:
Jul. 02, 2019
Applicant:
Nabholz Construction Corporation, Conway, AR (US);
Inventors:
Stephen Harold Schumacher, Sandy Hook, CT (US);
Mark M. O'Donnell, Danbury, CT (US);
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B66F 3/44 (2006.01); B66F 7/10 (2006.01);
U.S. Cl.
CPC ...
B66F 3/44 (2013.01); B66F 7/10 (2013.01);
Abstract
A drop table can employ one or more shearing drive couplings to optimize lifting operations. The drop table can have a motor physically attached to a first lifting column via a first rotating input shaft and to a second lifting column via a second rotating input shaft. Each rotating input shaft is connected to the motor by a drive coupling having a shearing insert positioned between a drive shaft and a collar.