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Christer Lundberg Patents |
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Inventor: Lundberg; Christer
Address: Gavle, SE
No. of patents: 1
Patents:
| Patent Number |
Title Of Patent |
Date Issued |
| 7185721 |
Male portion, drill bit and threaded joint for percussive rock drilling |
March 6, 2007 |
| A male portion for percussive rock drilling includes sections of reduced cross-sectional area. At least one thread for percussive rock drilling is provided at an end of the male portion. The end of the male portion comprises an abutment surface for the transfer of impact waves. The l |
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