Plough

Details Plough Plough

Filed on

1980-09-22

Date issued

1982-09-21

Examiner

Shapiro, Paul E.

Patent Class

Earth working

SubClass

Processes

Other Related Categories

172 33, A01B 1508, A01B 7900

Type

Patent

Status

active

Patent number

043502083

Description

ABSTRACT:
A plow has spaced apart furrow cutters and a furrow elevating structure that loosens and raises a continuous wide furrow strip to a furrow turning device during plow travel. The turning device can be an open ended drum that is rotated or stationary. Within the drum, a worm conveyor is rotated that first engages and depresses the furrow top, but as the furrow strip passes through the drum, it is inverted and to some extent, winds around the conveyor so that the furrow strip has a cross section that resembles an inverted shallow U. The inverted and deformed strip is deposited in the furrow being formed. The conveyor is normally located about centrally of the drum interior so that the furrow strip top is first engaged by the conveyor's lower surfaces, but as the strip is urged through the drum, it is inverted and supported on top of the conveyor before being deposited to the rear. The method of cutting, inverting and depositing the deformed continuous furrow strip is claimed.

REFERENCES:
patent: 372557 (1887-11-01), Morley
patent: 1209848 (1916-12-01), Kernan et al.
patent: 1516561 (1924-11-01), Best
patent: 2617347 (1952-11-01), Provost
patent: 2663242 (1953-12-01), Lancaster

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