Electrical method of sensing operator presence on a walk-behind mower
US7228679B2 · kind B2 · utility
2Cited by
21References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 18, 2004 |
| Grant date | Jun 12, 2007 |
| Priority date | — |
| Expiry date | Jul 18, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H2300/026
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An operator presence control assembly for a walk-behind greens mower includes a handle supported on a frame of the walk-behind greens mower, a ribbon switch on the outer perimeter of the handle, and a circuit including the ribbon switch. The circuit is completed by applying a threshold pressure to the ribbon switch, and a device selectively energizeable via the circuit in accordance with the threshold pressure applied to the ribbon switch. As the user of the greens mower grips the handle, the ribbon switch completes a circuit to energize a switch to engage an electromagnetic clutch.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.