Pressure damping device
US9592716B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 25, 2013 |
| Grant date | Mar 14, 2017 |
| Priority date | — |
| Expiry date | Mar 21, 2034 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16F9/5126
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A pressure damping device includes: a cylinder; a piston provided movably in the cylinder in an axial direction of the cylinder, and formed to have a plurality of channels for liquid; a moving and partitioning member located between the piston and the cylinder, and provided movably from one end to the other end in the axial direction of a movable region provided in the piston, and configured to partition a space in the cylinder into a first liquid chamber and a second liquid chamber for storing the liquid; a first opening and closing member configured to open and close an opening in at least a part of the plurality of channels of the piston and open the opening; and a second opening and closing member configured to open and close an opening in at least a part of the plurality of channels and open the opening.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.