Excavating – Ditcher – Wheel excavator
Patent
1979-11-01
1982-05-18
Crowder, Clifford D.
Excavating
Ditcher
Wheel excavator
37 54, 37193, 405161, F16L 104, E02F 518
Patent
active
043297935
ABSTRACT:
A trenching implement (41) suitable for towing on the sea bed to make a trench for a submarine cable or pipeline (54) comprises a body (44) attached to which is a soil cutting member (46) which makes a soil surface in the direction of travel of the implement, a landside (45) engaging the soil surface and a towing means (56) connected so that, when the direction of travel is different from the line of the towing force (56), the line of the towing force (56), projected if necessary, passes through a point (50) in the region of the landside (45) with the result that the landside (45) resists the sideways component of the towing force (56). This reduces the risk of damage to the cable or pipeline (54).
REFERENCES:
patent: 2144063 (1939-01-01), Irvin
patent: 2669040 (1954-02-01), Gregerson
patent: 2795111 (1957-06-01), Richardson
patent: 2875585 (1959-03-01), Little
patent: 3024851 (1962-03-01), Harres
patent: 3431741 (1969-03-01), Kinnan
patent: 3478527 (1969-11-01), Sherrod
patent: 3486344 (1969-12-01), Ylinen
patent: 3905200 (1974-09-01), Ylinen
patent: 4011727 (1977-03-01), Suzuki et al.
Crowder Clifford D.
The British Petroleum Company Limited
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