Excavating – Snow or ice removing or grooming by portable device – Scraper blade
Patent
1990-11-29
1991-10-22
Corbin, David H.
Excavating
Snow or ice removing or grooming by portable device
Scraper blade
37236, 1724451, 1727995, E01H 506, E02F 3815
Patent
active
050582950
ABSTRACT:
The rear-mounted scraper of this invention is adapted for attachment to the rear of a vehicle which has a rear bumper, bottom and a rear axle. The rear-mounted scraper has a hitch with portions adapted for attachment to the bottom of the vehicle and portions defining pivotal attachment points which define a horizontal pivot axis. The pivot axis of the attached hitch is spaced from the rear axle and the rear of the vehicle and is beneath the bottom of the vehicle. The plow also has a scraper assembly which has a blade an extension which extends forward from the blade and is pivotally mounted at the hitch pivot points to enable the scraper assembly to pivot about the horizontal pivot axis. A linear actuator is pivotally attached to the scraper assembly and to the hitch at a position near the bottom of the vehicle rear between the pivot axis and the vehicle rear axle such that operation of the linear actuator causes the scraper assembly to pivot about the pivotal attachment points on the hitch and thus move the blade from a lowered, ground-engaging, snowscraping, position to a raised position beneath the vehicle and substantially forward of the rear bumper.
REFERENCES:
patent: 2059818 (1936-11-01), Simon
patent: 2266625 (1941-12-01), Cundiff
patent: 2622349 (1952-12-01), Kinnan
patent: 3302317 (1967-02-01), Domres
patent: 3800447 (1974-04-01), Harvey
patent: 3893248 (1975-07-01), Young
patent: 3924689 (1975-12-01), Manor
patent: 4403432 (1983-09-01), Biance
patent: 4805322 (1989-02-01), Lemire et al.
patent: 4907357 (1990-03-01), Lilienthal
Weaver Manufacturing brochure, Artic Snow Plows, Plow Partner, Mounting Kit #51191.
Corbin David H.
Olsen Arlen L.
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