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Dailey Petroleum Service Corp. Patents |
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Assignee: Dailey Petroleum Service Corp.
Address: Conroe, TX
No. of patents: 2
Patents:
| Patent Number |
Title Of Patent |
Date Issued |
| 5165492 |
Apparatus for preventing separation of a down-hole motor from a drill string |
November 24, 1992 |
| An apparatus is disclosed for use in a drill string 10 to prevent separation of a lower tubular member 16 from an upper tubular member 15 by a rotational force applied from a down-hole motor 22. The down-hole motor 22 is rotated by drilling fluid pumped from the surface, through a passag |
| 5086851 |
Combination thrust and radial bearing for use in down-hole drilling tools |
February 11, 1992 |
| A down-hole motor and bearing arrangement 22 includes a pair of longitudinally spaced apart bearings 26, 28 that each have multiple rows of ball bearings 36 positioned between a unitary inner race 34 and a two piece outer race 56. The race 34 includes a plurality of longitudinally sp |
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