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. 23, 2025
Filed:
May. 10, 2019
Volvo Construction Equipment Ab, Eskilstuna, SE;
Lukasz Krzysztof Rembisz, Medlow, PL;
Fares Beainy, Mechanicsville, PA (US);
Rafal Robert Cisowski, Jelcz-Laskowice, PL;
Volvo Construction Equipment AB, Eskilstuna, SE;
Abstract
A surface compactor machine includes an unsprung mass including a cylindrical drum and a cylindrical spool disposed within the cylindrical drum, and a sprung mass rotationally coupled to the cylindrical spool. The sprung mass has a center of gravity that is lower than the center of gravity of the unsprung mass when the surface compactor machine is in a stationary position. The sprung mass includes a traction system that rotates the sprung mass relative to the cylindrical spool. When the traction system rotates the sprung mass relative to the cylindrical spool, the second center of gravity of the sprung mass is rotated out of vertical alignment with the first center of gravity of the unsprung mass, thereby imparting torque to the cylindrical spool that causes rotation of the cylindrical drum.