Fluid pressure cylinder
US7798052B2 · kind B2 · utility
3Cited by
6References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 31, 2007 |
| Grant date | Sep 21, 2010 |
| Priority date | — |
| Expiry date | Nov 30, 2028 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF15B15/222
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
First and second cushion rings are arranged respectively on both end surfaces of a piston constituting part of a fluid pressure cylinder, through fitting grooves. The first and second cushion rings are formed with substantially hollow cylindrical shapes by press working a metal material, wherein the cushion rings effectuate a cushioning action, which decelerates the displacement speed of the piston, as a result of being displaced in the axial direction together with the piston and being received and accommodated within a recess of the head cover and a rod hole of the rod cover.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.