Cement head
US8381808B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 29, 2008 |
| Grant date | Feb 26, 2013 |
| Priority date | — |
| Expiry date | Jan 1, 2030 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B33/05
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A cement head, comprising a first module comprising a first module outer profile, a second module comprising a second module outer profile, a bridge comprising a bridge profile engaged with each of the first module outer profile and the second module outer profile. A wellbore servicing apparatus, comprising a first module coaxial with a central axis, the first module comprising a first module outer surface, and a plurality of first module protrusions extending radially outward from the first module outer surface, a second module coaxial with the central axis, the second module comprising a second module outer surface, and a plurality of second module protrusions extending radially outward from the second module outer surface, a bridge having an outer bridge surface and an inner bridge surface, the bridge inner surface substantially complementing each of the first module outer surface, including the plurality of first module projections, and the second module outer surface, including the plurality of second module projections, when the first module is substantially adjacent the second module and a bridge outer surface, and a retainer coaxial with the central axis and configured to s…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.