Self-closing pneumatic spring system
US6422543B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 27, 2001 |
| Grant date | Jul 23, 2002 |
| Priority date | — |
| Expiry date | Feb 27, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60G2204/4604
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
The invention relates to a pneumatic spring system (1) comprising at least the following components, specifically: a pneumatic spring cover (2) and a pneumatic spring piston (4), which are arranged opposing each other; a pneumatic spring bellows (3) made of elastomer material, which connects the pneumatic spring cover (2) and the pneumatic spring piston (4) with each other with the use of fasteners (8), whereby the bellows is capable of rolling off on the outer wall of the piston (5) with formation of an internal chamber (6) of the pneumatic spring having an elastic volume; as well as a connection (7) for ventilating and evacuating the internal chamber (6) of the pneumatic spring. The pneumatic spring system is equipped with a pressure-sensitive connection system which reacts to pressure in a way such that in the evacuated condition, the pneumatic spring cover (2) and the pneumatic spring piston (4) are connected with each other, whereby the connection is released again in the operating conditions, i.e. when the internal chamber (6) of the pneumatic spring is filled with air.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.