Air cushion lawn mower
US4510738A · kind A · utility
3Cited by
10References
6Claims
0Family size
Inventor
Key dates
| Filing date | May 22, 1979 |
| Grant date | Apr 16, 1985 |
| Priority date | — |
| Expiry date | May 22, 1999 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01D2101/00
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An air-cushion lawn mower has a rotary cutting blade shrouded by a hood. The mower has a fan wheel rotatable about the same axis as the blade, and both the blade and the fan wheel are driven by a motor mounted on the hood. The front part of the hood with respect to the normal direction of travel of the mower, has projections which support a freely rotatable roller which acts to reduce the frictional resistance to forward motion when the mower is used to cut relatively long blades of grass.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.