Reversible power takeoff driven post hole digger

Details Reversible power takeoff driven post hole digger Reversible power takeoff driven post hole digger

2007-05-01

2007-05-01

Gay, Jennifer H. (Department: 3672)

Boring or penetrating the earth

With tool shaft detail

Helix or helically arranged structure

C175S394000, C074S324000

Reexamination Certificate

active

11059997

ABSTRACT:
A reversible post hole digger apparatus powered by a power takeoff shaft includes a transmission providing a reverse gear and a forward gear in a single housing. The apparatus has a power head disposed between a shaft connected to the power takeoff and an output shaft driving an auger. A gear box within the power head contains a main shaft which carries forward and reverse pinion gears at opposite ends and has a central portion with an external spline connector. The pinion gears are activated by a central spline-containing slide. Movement of the slide, carried out by means of a shift lever engaging a fork with a rack and pinion device, provides connection to forward, reverse and neutral positions on the shaft. Upper and lower ring gears drive an output shaft in a selected direction.

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patent: 6725950 (2004-04-01), Palm
patent: 2002/0020563 (2002-02-01), Baka

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