Excavating – Ditcher – Wheel excavator
Patent
1991-03-01
1992-05-12
Reese, Randolph A.
Excavating
Ditcher
Wheel excavator
37 80A, 37189, 37191R, 299 82, E02F 324
Patent
active
051116014
ABSTRACT:
Excavation device (10) with rotary cutter having a horizontal axis, the device (10) having a support structure (11) for excavation means consisting advantageously of pairs of cutter wheels (12-112) able to rotate about their axis (13), the rotation being induced by drive means (15) and suitable transmission means, the cutter wheels (12-112) being equipped with main excavation tools (18), an excavation chain (22) bearing secondary excavation tools (23) being associated with each cutter wheel (12-112) and being actuated by a sprocket wheel (19) firmly secured (20) to the respective cutter wheel (12-112) and cooperating with a transmission means (21) secured to the support structure (11), the secondary excavation tools (23) borne by the excavation chains (22) of each pair of cutter wheels (12-112) covering almost the whole excavation face between the main excavation tools (18).
REFERENCES:
patent: 107529 (1870-09-01), Osgood
patent: 1210412 (1917-01-01), Budlong
patent: 1455206 (1923-05-01), Howe et al.
patent: 1519897 (1924-12-01), Asplund
patent: 2002239 (1935-05-01), Davis
patent: 2751207 (1956-06-01), Barrett
patent: 3157438 (1964-11-01), Lundquist
patent: 3318638 (1967-05-01), Kilbourne
Casagrande SpA
Olsen Arlen L.
Reese Randolph A.
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