Rotary tiller for maintaining cross country ski trails

Details Rotary tiller for maintaining cross country ski trails Rotary tiller for maintaining cross country ski trails

1984-09-14

1985-12-24

Eickholt, E. H.

Excavating

Snow or ice removing or grooming by portable device

Process

37222, E01H 500

Patent

active

045597251

ABSTRACT:
A rotary tiller for maintaining cross country ski trails has a rotary shaft with at least one array of radially extending first cutters flanked by laterally adjacent arrays of radially extending second cutters. The radial lengths of the first cutters are greater than the radial lengths of the second cutters. The first cutters are arranged to till a center ski track and the second cutters are arranged to till pole tracks on either side of the ski track, with the ski tracks having a tilled depth greater than that of the pole tracks.

REFERENCES:
patent: 1132152 (1915-03-01), Bell
patent: 2786283 (1957-03-01), Bradley
patent: 3652106 (1972-03-01), Waterman
patent: 3794122 (1974-02-01), Rohrer
patent: 4057916 (1977-11-01), Roemer
patent: 4195695 (1980-04-01), Dixon
patent: 4282666 (1981-08-01), Brandt
patent: 4360065 (1982-11-01), Jewison et al.
patent: 4391051 (1983-07-01), Bachler

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