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SDS Pacific PTE, Ltd. Patents |
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Assignee: SDS Pacific PTE, Ltd.
Address: Singapore, SG
No. of patents: 1
Patents:
| Patent Number |
Title Of Patent |
Date Issued |
| 5778993 |
Locking a sample tube in a downhole hammer |
July 14, 1998 |
| A common problem with reverse circulation downhole hammers is retention of the sample tube that extends through the actual hammer component., There is a tendency for the sample tube to become loose in its mounting, and the resulting movement through vibration results in accelerated wear |
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