Excavating – Snow or ice removing or grooming by portable device – With specific means to facilitate connection to – or...
Patent
1980-12-03
1983-01-25
Burr, Edgar S.
Excavating
Snow or ice removing or grooming by portable device
With specific means to facilitate connection to, or...
37235, 37241, 37271, 37283, 172247, 172490, 1726845, E01H 506
Patent
active
043695906
ABSTRACT:
Scraper apparatus for being carried at the rear of a vehicle such as a light truck or the like includes an attachment frame adapted for being carried by the vehicle beneath its chassis thereof at the rear of the vehicle. A blade-carrying frame for carrying the blade at the rear of the vehicle is pivotally and detachably securable to the attachment frame at the rear of the vehicle by use of a securement frame or unit providing telescoping interengagement with the attachment frame, and pivotal interengagement with the blade-carrying frame to define a transverse pivot axis to permit pivoting of the blade-carrying frame upon the axis relative to the vehicle. A winch selectively raises or lowers the pivot-remote end of the blade-carrying frame under remote operator control. The blade is pivotally secured to the blade-carrying frame by a sleeve in which is rotatably journalled a shaft secured to the blade. A locking mechanism locks the shaft relative to the sleeve to establish a pre-selected angular relationship between the blade and the longitudinal axis of the vehicle. When pivoted to raise the pivot-remote end thereof, the blade-carrying frame maintains the blade close to the rear of the vehicle out of contact with the surface upon which the vehicle stands. When lowered, the blade-carrying frame permits the blade to contact the surface with the blade-carrying frame extending rearwardly from the vehicle. The apparatus also permits connection of a standard ball hitch and permits the winch to be used conventionally.
REFERENCES:
patent: 1574732 (1926-02-01), Hemje
patent: 2517426 (1950-08-01), Hall
patent: 2740214 (1956-04-01), Collins
patent: 2787847 (1957-04-01), Acps
patent: 2787876 (1957-04-01), Cole
patent: 2815591 (1957-12-01), Mattingly
patent: 3195249 (1965-07-01), Collins
patent: 3515221 (1970-06-01), Fowler
patent: 3800447 (1974-04-01), Harvey
patent: 3828449 (1974-08-01), Miceli
patent: 4215496 (1980-08-01), Wehr
Burr Edgar S.
Cohen Moshe I.
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