Piston and a power cylinder fitted therewith
US7322272B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 5, 2005 |
| Grant date | Jan 29, 2008 |
| Priority date | — |
| Expiry date | Dec 5, 2025 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF15B15/226
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A piston for a fluid operated power cylinder has two mutually coaxial sealing lips axially extending away from each other and being able to radially yield, for sealing engagement with the piston running face of the power cylinder and adjacent to at least one piston end side an elastic buffer body serving for shock absorbing in the end of stroke position of the piston, said body having an impact face facing away from the piston. At least at one piston end face the sealing lip itself constitutes the buffer body and has the impact face at its end, groove-like recesses being formed on the inner periphery of the sealing lip with a distribution in the peripheral direction, such recesses opening toward said impact face.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.