Earth working – Lawn edger – Rolling or driven cutter
Patent
1976-01-23
1977-05-10
Shapiro, Paul E.
Earth working
Lawn edger
Rolling or driven cutter
30240, 30276, 30DIG7, 56 102, 56 105, A01D 35264
Patent
active
040222837
ABSTRACT:
A portable power tool particularly suited for use in removing plant growth and debris from the peripheral zones of upstanding heads for subterranean sprinkler systems. The tool is characterized by a portable frame adapted to be positioned above an upstanding sprinkler head in an operative relationship therewith, a drive shaft mounted on the frame having a rotatable cutting head connected thereto for cutting an annular swath about the sprinkler head in response to rotary motion imparted to the drive shaft, and an electrically energizable motor connected to the drive shaft and adapted to respond to a positioning of the frame into an operative relationship with a sprinkler head for imparting rotary motion to the drive shaft.
REFERENCES:
patent: 1545835 (1925-07-01), Komow et al.
patent: 3143176 (1964-08-01), Drane, Jr.
patent: 3174224 (1965-03-01), Rousselet
patent: 3554293 (1971-01-01), Aman et al.
patent: 3555680 (1971-01-01), Ford
patent: 3905103 (1975-09-01), Ford et al.
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