Hydraulic cylinder
US10480546B2 · kind B2 · utility
0Cited by
6References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 24, 2015 |
| Grant date | Nov 19, 2019 |
| Priority date | — |
| Expiry date | Nov 19, 2035 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF15B2215/305
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A piston rod and a rod cover which constitute this hydraulic cylinder are configured from aluminum or an aluminum alloy. An alumite coating film is formed on at least a part of the inner wall surface of the rod cover that constitutes a rod insertion hole, and a diamond-like carbon coating film is formed on the outer wall surface of the piston rod, said diamond-like carbon coating film being in sliding contact with the alumite coating film.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.