Rotary mower blade arrester apparatus
US3955653A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 25, 1974 |
| Grant date | May 11, 1976 |
| Priority date | — |
| Expiry date | Apr 25, 1994 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01D2101/00
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Apparatus for rapidly braking the rotary blade of a rotary mower driven by an internal combustion engine. The internal combustion engine has a plurality of passages which lead to its combustion chamber for provision of a fuel-air mixture for combustion in the chamber and for exit of exhaust gases from the chamber. The apparatus includes a valve located in one of these passages which effectively blocks the passage when manually operated means for actuating the valve are operated. In one embodiment, a release of a dead man handle used in conjunction with the mower causes actuation of the valve by means of a bowden wire linkage connected between the dead man handle and the braking valve. The apparatus may also include a switch operated simultaneously with the braking valve to provide an ignition spark arresting function.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.