Mowing apparatus having oppositely reciprocating cutters
US4987732A · kind A · utility
21Cited by
7References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 17, 1989 |
| Grant date | Jan 29, 1991 |
| Priority date | — |
| Expiry date | Jan 17, 2009 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01D34/76
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
To mow even soft grass more tidily in shearing mode without kicking pebbles, a pair of two grass cutting wheels are pivotally driven by an engine in two mutually-different directions. One cutting wheel is slidably fixed relative to the other cutting wheel for safety. The mowing machine can be used in common to shear off grass on the ground and trim a garden tree by adjusting an angle between a hollow grip pipe and the machine cutting surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.