Side door bolt-free ram blowout preventer
US12398613B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 13, 2023 |
| Grant date | Aug 26, 2025 |
| Priority date | — |
| Expiry date | Sep 13, 2043 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B33/061
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A side-door-bolt-free ram blowout preventer includes first fixed blocks on two side-faces of a housing, and guide rods fixed to sides of the housing; side doors sleeved over outsides of and movable along the guide rods; second fixed blocks provided on the side doors' sides close to the housing; claw blocks arranged at side-faces of the second fixed blocks. Each claw block has a side-face, close to the housing, provided with a waist-shaped hole arranged extending through the claw block, and a side, away from the second fixed block, connected with a claw-block bolt; claw-block beams each penetrate through and have two ends outside corresponding waist-shaped hole; claw-block-beam grooves are formed at corresponding positions on the housing and the side doors; the claw-block beam has two ends inserted into the housing's and side door's claw-block-beam grooves respectively, and an end portion fixed in the claw-block-beam groove on the side door.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.