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Inventor: McKay; Don C.
Address: Rush Springs, OK
No. of patents: 1
Patents:
| Patent Number |
Title Of Patent |
Date Issued |
| 4154313 |
Flow control valve for rock bits |
May 15, 1979 |
| A rotary rock bit with passageways for conducting air or other gaseous fluid to cool the bearings and flush cuttings from the borehole includes valve means for controlling the entry of water into the bearings. The stream of air or other gaseous fluid is directed through a valve system |
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