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:
Oct. 04, 2022
Filed:
Nov. 19, 2018
Applicant:
Husqvarna Ab, Huskvarna, SE;
Inventors:
Tchavdar V. Tchakarov, Monroe, MI (US);
Martin Renneson, Walhain, BE;
Assignee:
HUSQVARNA AB, Huskvarna, SE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B24D 9/08 (2006.01); B24B 7/18 (2006.01); B24B 41/047 (2006.01); E04F 21/24 (2006.01);
U.S. Cl.
CPC ...
B24D 9/085 (2013.01); B24B 7/186 (2013.01); B24B 41/047 (2013.01); E04F 21/248 (2013.01);
Abstract
A tool driver for a power trowel, the tool driver comprising a combination of a magnetic fastening arrangement and a hook and loop based fastening arrangement for releasably holding an abrasive tool to the tool driver, wherein the magnetic fastening arrangement is configured symmetrically around a rotational center of the tool driver, wherein the hook and loop based fastening arrangement is adapted to provide increased shear strength during abrasive operation of the tool, and wherein the magnetic fastening arrangement is adapted to provide increased pull strength during lifting of the tool driver.