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:
Jan. 12, 2021
Applicant:
Pierre Lermant, sunnyvale, CA (US);
Inventor:
Pierre Lermant, sunnyvale, CA (US);
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B62J 50/17 (2020.01); B62J 23/00 (2006.01); B62J 43/30 (2020.01); E01H 1/05 (2006.01);
U.S. Cl.
CPC ...
B62J 50/17 (2020.02); B62J 23/00 (2013.01); B62J 43/30 (2020.02); E01H 1/056 (2013.01);
Abstract
Various embodiments include a cylindrical brush mounted on a frame supported by a set of wheels positioned behind the brush. A tow bar connects the frame to a tow vehicle. The amount of pressure between the brush and the ground is controllable. The brush rotation is driven by an electric motor. In one embodiment, the brush axis is not orthogonal to the direction of motion, and debris gets pushed to the side as the sweeper moves forward. In another embodiment, the brush axis is orthogonal to the direction of motion and the debris is driven around the brush by a wrap-around guide, into a hopper sitting on the frame behind the brush.