Downhole rotatable-shaft connector assembly and method
US7104345B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 22, 2004 |
| Grant date | Sep 12, 2006 |
| Priority date | — |
| Expiry date | Dec 2, 2024 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L15/08
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A connector assembly for connecting with a rotatable shaft is provided. The connector assembly includes a mating sleeve threadably coupleable about the shaft and a center sleeve sized and shaped for deployment between the shaft and the mating sleeve. The center sleeve includes pluralities of splines formed on inner and outer surfaces thereof. The splines on the inner surface of the center sleeve are engageable with splines on the outer surface of the shaft and the splines on the outer surface of the center sleeve are engageable with splines on the inner surface of the mating sleeve. Exemplary embodiments of this invention are useful in downhole tools to reduce make-up torque requirements of the mating sleeve, and therefore may advantageously increase the cyclic torsional and/or bending load capacity of the shaft, while also increasing the total torsional load capacity of the connection.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.