Thread retention for an earth boring device
US7954565B2 · kind B2 · utility
4Cited by
12References
24Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 13, 2006 |
| Grant date | Jun 7, 2011 |
| Priority date | — |
| Expiry date | Nov 13, 2026 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16B39/06
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The invention relates to an earth boring device including a housing which has at least one portion with an inner thread, and a threaded element which has a corresponding outer thread, wherein the threaded element is slotted and has a receptacle for a securing element which increases the outer diameter of the threaded element and the contact pressure of the threaded connection between threaded element and housing, when inserted in the receptacle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.