Walk behind mower
US7146787B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 23, 2003 |
| Grant date | Dec 12, 2006 |
| Priority date | — |
| Expiry date | Oct 28, 2023 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01D2101/00
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Disclosed is a self propelled walk behind mower comprised of a tractor unit and a mowing deck. The tractor unit is hydrostatically driven with a unique control system whereby the forward speed of the tractor is set by operating an electric rocker switch with an operator's thumb. Hand levers are used to turn the tractor to the left and the right. The tractor unit comprises two drive wheels and a third wheel that is pivotally attached, letting the tractor unit stand upright when no implements are attached. Implements attach to the front of the tractor through a movable attachment so that the tractor and implement can closely follow the contour of the ground while keeping the operator controls in a convenient position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.