Internal Gear Single Pinion Patents (Class 56/254)
  • Lawn mower with swiveling rear wheels
    Patent number: 11419264
    Abstract: A lawn mower according to the present invention comprises two swiveling rear wheels, each underneath a dome built into a deck of the lawn mower. The rear wheels may rotate on a rotational axis within a bracket. The bracket does not rotate while the rear wheel rotates. The rear wheels may also swivel within their corresponding dome on a swivel axis, perpendicular to the rotational axis. The swivel and rotation of the rear wheel enable a pivoting of the lawn mower with a front wheel as the fulcrum of said pivot.
    Type: Grant
    Filed: December 29, 2021
    Date of Patent: August 23, 2022
    Inventor: Richard Neil King
  • Reel blade and manufacturing method
    Patent number: 11324163
    Abstract: A reel for a reel mower having reference grooves formed in the shaft thereof and usable as datum to ensure ends formed in the shaft are concentrically aligned and for sharpening and truing maintenance operations.
    Type: Grant
    Filed: October 16, 2019
    Date of Patent: May 10, 2022
    Assignee: The Toro Company
    Inventors: Scott Michael Coffin, Cody Schrupp
  • Method for operating an autonomous mobile lawn mower robot and lawn mowing system
    Patent number: 10888046
    Abstract: A method for operating an autonomous mobile lawn mower robot having a cutting tool for mowing a lawn, wherein a cutting height of the cutting tool is adjustable, includes the steps of: receiving a prediction of an environmental condition describing parameter, and automatically adjusting the cutting height of the cutting tool as a function of the received prediction.
    Type: Grant
    Filed: June 8, 2018
    Date of Patent: January 12, 2021
    Assignee: Andreas Stihl AG & Co. KG
    Inventors: Ernst Gorenflo, Peter Ritzer
  • Saw blade for an oscillatingly driven saw
    Patent number: 10220539
    Abstract: A saw blade for a machine tool driven oscillatingly about a longitudinal axis has at least one cutting edge, on which, at least in part, abrasive particles are provided. The saw blade is suitable, in particular, for sawing fiber composites.
    Type: Grant
    Filed: November 14, 2014
    Date of Patent: March 5, 2019
    Assignee: C. & E. Fein GmbH
    Inventor: Rainer Mann