Post hole digger

Details Post hole digger Post hole digger

1989-10-16

1991-01-22

Dang, Hoang C.

Boring or penetrating the earth

Boring without earth removal

Fluid passage to exterior of drive point

52155, 175391, 175393, 175421, 175424, 405248, 405254, E21B 1042, E21B 1060, E02D 724

Patent

active

049863738

ABSTRACT:
A post hole digger and a method of implanting a post in the ground. A boring implement having a piercing free end and also having an attachment flange is secured to an end portion of a post to be implanted in the ground. The implement has a tapered body section with a projecting serrated edge on opposed sides thereof. The serrated edges extend angularly from a common longitudinal plane and in opposed angular directions. A pipe section is secured to the implement and a garden hose is connected thereto whereby to direct a stream of water in the direction of said piercing free end whereby axial rotation and counter-rotation of said post causes the implement to bore into the ground to cause said post to descend in a bore hole. After the post is implanted the garden hose is disconnected from the pipe section by applying a pulling force on the hose.

REFERENCES:
patent: 63016 (1867-03-01), Caswell
patent: 225061 (1880-03-01), Johnson
patent: 228467 (1880-06-01), Maclay
patent: 283300 (1883-08-01), Surprenant et al.
patent: 427815 (1890-05-01), Wolf
patent: 629539 (1899-07-01), Bertram
patent: 2508230 (1950-05-01), Coon
patent: 2864241 (1958-12-01), Fiore et al.
patent: 3218813 (1965-11-01), Fiore
patent: 3638741 (1972-02-01), Zizak

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