Patent ID: 6485007
Filing Date: 2002-11-26
Classification: F16J

Abstract:
A diaphragm bellows device comprising: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.