Material or article handling – Well pipe or rod racking mechanism – Vertical rack
Patent
1989-01-05
1990-01-30
Werner, Frank E.
Material or article handling
Well pipe or rod racking mechanism
Vertical rack
166 85, 175 52, 175 85, 211 704, E21B 1914
Patent
active
048970093
ABSTRACT:
Drill pipe handling apparatus including a magazine for holding a plurality of lengths of drill pipe and delivering each pipe into position for its removal by drilling apparatus which is operable to drill the pipe into the ground at an angle off vertical, having a brake for preventing rotation of the magazine such as might otherwise occur due to the magazine being in an unbalanced condition.
REFERENCES:
patent: 2909288 (1959-10-01), Boudette
patent: 2972388 (1961-02-01), Thornburg
patent: 3025918 (1962-03-01), Leven
patent: 3684039 (1972-08-01), Coyne
patent: 3913753 (1975-10-01), Swartz et al.
patent: 3966053 (1976-06-01), Loftis
patent: 3985189 (1976-10-01), Jahnke et al.
patent: 4455116 (1984-06-01), Lindstedt et al.
Eller James T.
Peabody Coal Company
Werner Frank E.
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