Excavating – Snow or ice removing or grooming by portable device – Railway clearer
Patent
1988-01-19
1989-08-01
Eickholt, Eugene H.
Excavating
Snow or ice removing or grooming by portable device
Railway clearer
37DIG3, 37103, 414912, 299 68, 299 91, E02F 376
Patent
active
048522775
ABSTRACT:
A scraper roller mounted in a backhoe bucket is provided for attachment to a backhoe tractor or similar boom device with hydraulic pressure line couplings. The roller is attached to supporting bearings at each end and is covered with a plurality of radially extending replaceable cutting blades around its circumference. Attached to one end of the roller is a drive mechanism which extends the length of the bucket and is coupled to a hydraulic motor mounted near the bucket to boom pivot attachment point. The hydraulic motor utilizes fluid coupling attachments for connecting into a hydraulic power system on the tractor. The drive mechanism is covered by a detachable protective shield. Rotation of the roller, assisted when necessary with the downward pressure provided by the backhoe hydraulic piston assembly and the partial weight of the tractor, results in the scraping of a uniform width trench.
REFERENCES:
patent: 2755092 (1956-07-01), Donahue
patent: 3595411 (1971-07-01), Ables
patent: 3845796 (1974-11-01), Moure
patent: 4023288 (1977-05-01), Roe
patent: 4278368 (1981-07-01), Livesay
patent: 4677772 (1987-07-01), Morelli
Eickholt Eugene H.
Marrs Roger A.
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