Excavating – Snow or ice removing or grooming by portable device – Scraper blade
Patent
1990-01-25
1991-09-24
Taylor, Dennis L.
Excavating
Snow or ice removing or grooming by portable device
Scraper blade
37268, 37266, E01H 504
Patent
active
050503227
ABSTRACT:
Snowplow apparatus is provided having a blade assembly and elongated tongue secured at one end to the blade assembly and having a connector device at the other end for detachably securing of the tongue to a single-point hitch assembly of an automotive vehicle whereby the tongue may oscillate in a vertical plane about its point of attachment. A stabilizing mechanism secured to the tongue in axially spaced relationship to the connector device detachably connects with the vehicle to prevent oscillation of the tongue about its point of attachment to the hitch assembly of the vehicle in a horizontal plane. The blade assembly is provided with lift units automatically operable upon traversing movement of the blade assembly over a ground surface to be cleared of snow accumulation to lower the blade assembly into plowing relationship when moved in a direction effective for plowing and to lift the blade assembly a distance above the ground and support it for transport when moved in an opposite direction. The blade assembly is constructed in two elements that are pivotable about a center, vertical axis for pivoting to either a V-shape for plowing or to a position parallel to the tongue for minimizing storage space requirements.
REFERENCES:
patent: 3800447 (1974-04-01), Harvey
patent: 4127951 (1978-12-01), Hatch
patent: 4369590 (1983-01-01), Miller
patent: 4403432 (1983-09-01), Biance
patent: 4802293 (1989-02-01), Smith
patent: 4873775 (1989-10-01), Richey
McBee J. Russell
Taylor Dennis L.
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