Diaphragm bellows device
US6485007B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | May 7, 2002 |
| Grant date | Nov 26, 2002 |
| Priority date | — |
| Expiry date | May 7, 2022 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16J3/047
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A diaphragm bellows device comprises a diaphragm bellows with a plurality of successive diaphragms which are welded together alternately at the outer and inner edges, wherein the length of the diaphragm bellows can be adjusted between an expanded state and a contracted state, and a plurality of sleeve parts which surround the successive diaphragms and which, together, enclose the successive diaphragms also in the expanded state of the diaphragm bellows over its entire longitudinal extension and overlap to a greater or lesser extent in axial direction of the diaphragm bellows depending on the adjusted length of the diaphragm bellows, wherein at least one of the sleeve parts is held on the welded outer edges of two adjoining diaphragms by a snap connection.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.