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US 10,590,571 B2Granted
Ultra-resilient pad
AssigneeAlbany International Corp.
InventorsRobert A. Hansen, Bjorn Rydin
Life of this patent
Estimating the term…
Abstract
A structure for use as a compressible ultra-resilient pad is disclosed. The structure includes axially and radially elastic hollow members and relatively inelastic yarns in various patterns. The structure has a high degree of both compressibility under an applied normal load and excellent recovery (resiliency or spring back) upon removal of that load.
Claims18
A compressible resilient pad, wherein the pad includes a structure having an original thickness, the structure comprising:
- a plurality of parallel longitudinal yarns;
- a plurality of parallel cross-direction yarns;
- a plurality of parallel hollow elastic members;
- wherein the structure is a laminated structure of independent layers not interwoven comprising:
- a first layer of the parallel yarns running in either the longitudinal or the cross-direction;
- a second layer of the parallel hollow elastic members on one side of the first layer, the second layer's hollow elastic members running in the longitudinal or cross-direction different from that of the first layer;
- and
- a third layer of the parallel yarns on the opposite side of the second layer as the first layer and running in the same direction as those of the first layer,
- wherein the parallel yarns of the third layer are aligned such that the parallel yarns of the third layer nest between the parallel yarns of the first layer without interfering with one another to allow the structure to compact to form a planar structure in a through thickness direction when the pad is under a pressure load;
- wherein the hollow elastic members are elastic in their thickness or radial direction and length or axial direction such that under the pressure load the hollow elastic members stretch and compress to conform to the nesting and, the structure springs back to substantially the original thickness after removal of the pressure load.
7 more elements
Dependencies are inferred from the claim text.