Variable geometry tiller

Details Variable geometry tiller Variable geometry tiller

1990-11-14

1991-11-26

Taylor, Dennis L.

Excavating

Snow or ice removing or grooming by portable device

Snow or ice surface groomer

37219, 37197, E01C 1922

Patent

active

050672630

ABSTRACT:
In the realm of snow grooming devices for ski hills, a unique snow tiller is disclosed. The snow tiller is pulled by a tracked vehicle and has a snow chamber which can be varied in size and dimension. The tiller is also equipped with a cutting drum which works the snow for a longer period of time when the snow chamber is enlarged. By varying the angle of the trailing bar mounted on a flexible membrane, which forms the outer bounds of the snow chamber, more or less snow is retained in the chamber depending upon snow conditions.

REFERENCES:
patent: 4651450 (1987-03-01), York et al.
patent: 4651451 (1987-03-01), Beeley et al.
patent: 4718183 (1988-01-01), Haug
patent: 4726129 (1988-02-01), Haug
patent: 4775014 (1988-10-01), Ranner
patent: 4888891 (1989-12-01), Haug
patent: 4897941 (1990-02-01), Sinykin

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