Hydraulic indexing system
US11591884B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 8, 2017 |
| Grant date | Feb 28, 2023 |
| Priority date | — |
| Expiry date | Jun 8, 2037 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B34/102
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A technique provides a desired control over incremental actuation of hydraulic devices. A hydraulically actuated tool is combined with a control module. The hydraulically actuated tool has an actuator piston positioned in a piston chamber and movable between operating positions. The control module comprises a hydraulic indexing circuit arranged to enable incremental movement of the actuator piston in a first direction and full stroke movement in a second direction based on hydraulic input delivered via control lines. The hydraulic indexing circuit comprises an indexing piston system and at least one check valve working in cooperation with the indexing piston system to enable the incremental and full stroke movements.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.