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SDS Digger Tools PTY, Ltd. Patents |
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Assignee: SDS Digger Tools PTY, Ltd.
Address: Bayswater, AU
No. of patents: 3
Patents:
| Patent Number |
Title Of Patent |
Date Issued |
| RE36002 |
Transmission sleeve for a down hole hammer |
December 22, 1998 |
| The present invention relates to a sacrificial transmission sleeve for a reverse circulation down hole hammer of the percussive type actuated by a fluid under pressure, including an outer sleeve, a drill bit retained in retaining means, the transmission sleeve comprising a body and an an |
| D412447 |
Sample tube for a percussive hammer |
August 3, 1999 |
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| 7290626 |
Transmission sleeve |
November 6, 2007 |
| The invention is a transmission sleeve for the reverse circulation down hole hammer activated by fluid under pressure, the hammer including an outer hammer casing, a drill bit retaining means (17) and a drill bit (10) retaining means (17) and extending forwardly therefrom. The transm |
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