Head for pipe rackers
US3937515A · kind A · utility
19Cited by
3References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 22, 1974 |
| Grant date | Feb 10, 1976 |
| Priority date | — |
| Expiry date | Nov 22, 1994 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B19/14
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A head for use in a well pipe racking system has a support plate for drill collars and a slide shiftable to and from positions for supporting drill pipe. A retaining lever is pivoted for movement between a position for retaining the drill collars and drill pipe in the head and an open position. The lever is reversible to swing to opposite sides of the head.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.