Apparatus for releasably coupling two elements
US7040396B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 20, 2002 |
| Grant date | May 9, 2006 |
| Priority date | — |
| Expiry date | Nov 14, 2022 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/106
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An apparatus for coupling two elements including an outer tubular member defining one or more outer tubular member slots, an inner tubular member defining one or more inner tubular member slots positioned within the outer tubular member, and a coupling assembly for releasably coupling the outer tubular member to the inner tubular member, including a tubular coupling body movably coupled to the inner tubular member, a coupling arm extending from the tubular coupling body, and a coupling element extending from the coupling arm, the coupling element adapted to mate with at least one outer tubular member slot and at least one inner tubular member slot.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.