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. 01, 2025
Filed:
Feb. 09, 2023
Fiskars Finland Oy Ab, Espoo, FI;
Mikko Heine, Espoo, FI;
Niko Rusanen, Espoo, FI;
Erkki Seppäläinen, Kauniainen, FI;
Pekka Lemmetyinen, Salo, FI;
Thomas Nyholm, Helsinki, FI;
Fiskars Finland Oy Ab, Espoo, FI;
Abstract
A tree pruner includes a pruner body, a blade system, and an electric motor to provide driving power for the blade system. Rotation of the electric motor in a first direction provides a cutting action. A control system controls the electric motor, and a transmission system having a transmission rope transfers power from the electric motor to the blade system. The tree pruner includes a tension management system to detect a slack rope situation in which tension of the transmission rope is below a predetermined limit value, and the control system prevents rotation of the electric motor in a second direction opposite to the first direction as a response to detection of the slack rope situation.