Pipe spinner
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Sep 9, 1980
Grant Date -
N/A
app pub date -
Dec 8, 1978
filing date -
Dec 8, 1978
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A pipe spinner for spinning drill pipe as used to dig deep wells includes a yoke with a torque arm. Three self-contained rotary hydraulic motors having urethane coated rollers on the exterior thereof are mounted upon the spinner, one in the central area of the yoke and one each on a swing arm pivoted to the end of the legs on the yoke. Hydraulic fluid for the three motors is supplied and removed axially thereof. The hydraulic fluid conduits are made flexible at the pivots.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
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