Tubular filter material machine and methods
OwnerRuediger Tueshaus, Peter Rosslerinventors
Life of this patent
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Abstract
A machine for continuously making spirally wrapped tubular filter material screens utilizes a mandrel around which one or more strips of filter material are wrapped. The resulting spirally wrapped tubular filter material screen may or may not comprise multiple layers of filter material. In one embodiment, the strips of filter material are continuously resistance welded along or about the helical seams of the filter material strips utilizing an outer welding wheel and an inner welding wheel.
Claims23
A machine for making a spiral wrapped filter material tubular screen from one or more strips of filter material, comprising:
- a mandrel for receiving said one or more strips of filter material in spiral fashion around said mandrel to form a tubular configuration;
- an inner bonding element positioned along an inner surface of said one or more strips of filter material arranged in spiral fashion around said mandrel;
- and
- an outer bonding element positioned along an outer surface of said one or more strips of filter material arranged in spiral fashion around said mandrel, said outer bonding element cooperating with said inner bonding element to bond said one or more strips of filter material together.
A machine for making a spiral wrapped filter material tubular screen from one or more strips of filter material, comprising:
- a mandrel comprising an outer surface;
- at least one filter material strip feed to deliver one or more filter material strips onto said outer surface of said mandrel such that said one or more filter material strips are directed onto at least a portion of said outer surface of said mandrel for forming a shape of said filter material tubular screen, said one or more filter material strips comprising an exterior filter material surface facing away from said mandrel and an interior filter material surface facing said mandrel;
- an exterior welding electrode positioned along said exterior filter material surface;
- and
- an interior welding electrode positioned along said interior filter material surface, said interior welding electrode cooperating with said exterior welding electrode for welding said one or more wire strips together.
A machine for making a spiral wrapped filter material tubular screen from one or more strips of filter material, comprising:
- a mandrel comprising an outer surface and defining an opening in said outer surface around which spiral wrapped filter material is received;
- an inner bonding element positioned at said opening;
- and
- an outer bonding element which cooperates with said inner bonding element such to bond said one or more strips of filter material together whereby said spiral wrapped filter material tubular is moved continuously with respect to said mandrel.
A method for making a spiral wrapped filter material tubular screen from one or more strips of filter material, comprising:
- wrapping said one or more strips of filter material spirally around a mandrel for forming a tubular shape of said spiral wrapped filter material tubular screen;
- and
- spirally bonding said one or more strips of filter material such that a spirally bonded length of said spirally wrapped tubular screen moves axially with respect to said mandrel.
Dependencies are inferred from the claim text.