Snowplow apparatus

Details Snowplow apparatus Snowplow apparatus

1979-05-29

1982-03-23

Bratlie, Steven A.

Excavating

Peat excavators

172261, 172294, E01H 506, A01B 6104

Patent

active

043205895

ABSTRACT:
An improved snowplow apparatus provided with articulated quadrilateral means permitting vertical movement of a snow clearing blade which is kept in a lowered position by a compressed gas accumulator communicating with one or two hydraulic cylinders connected between the snow clearing blade and a supporting frame therefor which is secured to a tractor. When the force exerted by said blade as it encounters an obstacle on a road exceeds the resistance of the accumulator, the pistons of the two cylinders are moved to supply hydraulic fluid under pressure to a hydraulic ram for lifting the blade.

REFERENCES:
patent: 2643470 (1953-06-01), Kaeser
patent: 3808714 (1974-05-01), Reissinger et al.
patent: 3893518 (1975-07-01), Farrell

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