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US 11,975,287 B2Granted
Pleated channel flow filter and/or roll form method
AssigneeParker-Hannifin Corporation
InventorsDaniel J. Copley, Brian Ehrenberg, Jason L. Tate
Life of this patent
Estimating the term…
Abstract
A roll forming method may be used to provide a pleated filter media pack and filter cartridges with channels formed. The pack includes a strip of a filter media extending opposed edges and opposed front and back sides. The strip is pleat tips with spacer structure such as integrally formed embossments maintaining a spacing between pleat panels. The inlet and outlet flow faces are created by the edges of the filter media rather than the pleat tips. Alternating pairs of pleat panels are closed such as by seal beads at the inlet and outlet flow faces.
Claims31
A filter media pack, comprising:
- a strip of a filter media extending between a first edge and a second edge, and having a first side and second side, the strip being pleated to provide a first plurality of pleat tips and a second plurality of pleat tips with pleat panels extending between pleat tips;
- a spacer structure maintaining a spacing between pleat panels;
- flow faces including an inlet flow face created by the first edge and an outlet flow face created by the second edge, with the pleat tips extending transversely between the inlet flow face and the outlet flow face, with alternating first pairs of pleat panels being closed proximate the inlet flow face and second pairs of pleat panels being closed proximate the outlet flow face, and
- at least one sealant bead applied along at least one of the flow faces that sealingly closes the first pairs of pleat panels proximate at least one of the flow faces, wherein the at least one sealant bead spaces respective portions of adjacent pleat panels apart in spaced relation.
1 more element
A filter media pack, comprising:
- a strip of a filter media extending between a first edge and a second edge, and having a first side and second side, the strip being pleated to provide a first plurality of pleat tips and a second plurality of pleat tips with pleat panels extending between pleat tips;
- a spacer structure maintaining a spacing between pleat panels;
- flow faces including an inlet flow face created by the first edge and an outlet flow face created by the second edge, with the pleat tips extending transversely between the inlet flow face and the outlet flow face, with alternating first pairs of pleat panels being closed proximate the inlet flow face and second pairs of pleat panels being closed proximate the outlet flow face,
- wherein the spacer structure comprises a plurality of embossments integrally formed into the strip of the filter media and arranged to maintain a spacing of pleat panels, wherein the embossments comprise a plurality of flutes formed into the filter media, the flutes extending between the inlet flow face and the outlet flow face in either a continuous or discontinuous manner, and wherein the flutes extend into at least one of the flow faces to maintain pleat spacing through at least one of the flow faces.
1 more element
A filter media pack, comprising:
- a strip of a filter media extending between a first edge and a second edge, and having a first side and second side, the strip being pleated to provide a first plurality of pleat tips and a second plurality of pleat tips with pleat panels extending between pleat tips;
- a spacer structure maintaining a spacing between pleat panels;
- an inlet flow face created by the first edge and an outlet flow face created by the second edge, with the pleat tips extending transversely between the inlet flow face and the outlet flow face, with alternating first pairs of pleat panels being closed proximate the inlet flow face and second pairs of pleat panels being closed proximate the outlet flow face, and
- wherein each pleat tip is formed by at least two creases, the creases extending between the inlet flow face and the outlet flow face to provide a pleat tip with a width of at least 2 millimeters to space adjacent members of pleat panels apart.
1 more element
A filter media pack, comprising:
- a continuous strip of a filter media extending between edges including a first edge and a second edge, and having a first side and second side, the continuous strip being pleated to provide a first plurality of pleat tips and a second plurality of pleat tips with pleat panels extending between pleat tips, wherein the continuous strip comprises a pleat depth greater than 2 inches;
- a plurality of embossments integrally formed into the continuous strip of the filter media, the embossments projecting along the pleat panels wherein flat regions of the filter media are arranged between embossments and wherein at least one of the edges interests embossment;
- an inlet flow face created by the first edge and an outlet flow face created by the second edge, with the pleat tips extending transversely between the inlet flow face and the outlet flow face, with alternating first pairs of pleat panels being closed proximate the inlet flow face and second pairs of pleat panels being closed proximate the outlet flow face;
- a first sealant bead applied to the first side proximate the first edge to sealingly close the first pairs of pleat panels proximate the inlet flow face;
- and
- a second sealant bead applied to the second side proximate the second edge to sealingly close the second pairs of pleat panels proximate the outlet flow face.
3 more elements
Dependencies are inferred from the claim text.