Ground rods and apparatus for forming and placing such rods

Details Ground rods and apparatus for forming and placing such rods Ground rods and apparatus for forming and placing such rods

1987-10-19

1990-05-01

Watson, Robert C.

Implements or apparatus for applying pushing or pulling force

Pipe or rod jack

Tie rod tensioner

E21B 1922

Patent

active

049212176

ABSTRACT:
This invention relates generally as indicated to ground rods, and more particularly to one piece ground rods of substantial length, and a method and apparatus for forming and placing such rods. Ground rods are normally steel rods having a copper cladding.

REFERENCES:
patent: 2624177 (1953-01-01), Warren
patent: 2871896 (1959-02-01), Markwell
patent: 3088385 (1963-05-01), Dorkins et al.
patent: 3329401 (1967-07-01), Becker et al.
patent: 3613804 (1971-10-01), Johsson
patent: 3690136 (1972-09-01), Slator et al.
patent: 3871617 (1975-03-01), Majima
patent: 4249600 (1981-02-01), Bailey
patent: 4417624 (1983-11-01), Gockel
patent: 4555090 (1985-11-01), Averhoff
patent: 4660635 (1987-04-01), Wittrisch

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