Seal for a cylinder-piston arrangement
US4327629A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 9, 1980 |
| Grant date | May 4, 1982 |
| Priority date | — |
| Expiry date | Apr 9, 2000 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16J3/06
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An apparatus comprising a cylinder, a piston located in part in the cylinder and movable relative thereto, an elastic tube member sealingly engaging the piston and the cylinder at spaced locations and at least partially defining a working chamber, the tube member stretching and contracting and the working chamber varying in volume upon relative movement of the piston and the cylinder, the tube member having a portion sliding against the inner wall of the cylinder as the volume of the working chamber varies and a ring member encircling the tube member and located between the tube member and the cylinder inner wall in the connection region of the tube member and the piston.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.