Diaphragm bellows device
AssigneeVAT Holding AG
InventorBernhard Duelli
Life of this patent
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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.
Claims14
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.
A diaphragm bellows device comprising:
- a diaphragm bellows with a plurality of successive diaphragms which are welded together at the outer and inner edges, and first and second end pieces which are welded to the end diaphragms, wherein the diaphragm bellows can be adjusted in length between an expanded state and a contracted state;
- a sleeve part which is fastened to the first end piece and which extends in the direction of the second end piece proceeding from the first end piece;
- a sleeve part which is fastened to the second end piece and which extends in the direction of the first end piece proceeding from the second end piece and;
- one or more sleeve parts fastened to the adjoining outer edges of adjacent diaphragms,
- wherein all of the sleeve parts 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.
Dependencies are inferred from the claim text.