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US 12,325,033 B2Granted
Method for fixing a metal sheet and filter device produced therewith
OwnerGuntram Krettekinventor
Life of this patent
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Abstract
A method for fixing a metal sheet serving as a filter element or the like to the inner peripheral wall of a filter device is disclosed. The metal sheet is arranged in a round shape, optionally with overlapping axial edge regions, on the inner peripheral wall of the housing of the filter device and is pressed against the peripheral wall of the housing with the aid of an expansion device. The disclosure further relates to a filter device produced in this way and to the expansion device used to carry out such a method.
Claims14
A method for fixing a metal screen plate (3) to an inner peripheral wall of a filter device, comprising the following steps:
- inserting the metal screen plate (3) into a cylindrical housing (1) of the filter device and arranging the metal screen plate (3) in a round shape on the peripheral wall of the cylindrical housing (1) inwardly of a filter cloth (2) that lines the peripheral wall of the cylindrical housing (1);
- inserting an expansion device (6) into the cylindrical housing (1) and engaging the expansion device (6) with two axial edge regions (4,5) of the metal screen plate (3);
- actuating the expansion device (6), thereby spreading the edge regions (4,5) apart and pressing the metal screen plate (3) against the peripheral wall of the housing (1);
- fixing the metal screen plate (3) in the spread-apart position;
- and
- loosening and removing the expansion device (6).
3 more elements
Dependencies are inferred from the claim text.