Hydraulic lock and method for a hydraulic system
US10626890B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 7, 2018 |
| Grant date | Apr 21, 2020 |
| Priority date | — |
| Expiry date | Jun 10, 2038 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF15B2211/8757
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A hydraulic lock for a hydraulic system includes a flow control valve and a second check valve. The flow control valve having a first inlet, a first outlet, a first check valve and a flow restrictor, each of the first check valve and the flow restrictor being communicably coupled to the first inlet and the first outlet and being arranged in parallel between the first inlet and the first outlet. The second check valve having a second inlet and a second outlet, the second inlet being communicably coupled to the first outlet, the second check valve further having a ball seating surface having an aperture there through, a ball, and a resilient member biasing the ball towards the ball seating surface to seal the aperture, the aperture being communicably coupled to the second inlet and the second outlet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.