Mechanically locked cutters and nozzles
US5678645A · kind A · utility
109Cited by
59References
33Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 13, 1995 |
| Grant date | Oct 21, 1997 |
| Priority date | — |
| Expiry date | Nov 13, 2015 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B10/62
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Mounting apparatus is described for locking an insertable stud cutter or slug cutter or fluid nozzle into a socket on a rotatable earth boring drill bit. The cutter may be readily removed and replaced without damaging either the cutter, nozzle or bit. Apparatus are shown for permitting, or alternatively, preventing rotation of the cutter or nozzle in its socket. The mounting apparatus is particularly applicable to cutters having a cutting disk of polycrystalline diamond or other superabrasive material mounted on a carbide supporting body, or carbide body nozzles or nozzles having a bore lined with such a material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.