Cushioning material for mattresses

Details Cushioning material for mattresses Cushioning material for mattresses

1989-05-16

1991-04-16

Robinson, Ellis P.

Stock material or miscellaneous articles

Structurally defined web or sheet

Nonplanar uniform thickness material

428 74, 428 76, 428131, 428179, 428296, 428300, 428301, 112402, 112422, 112438, 5420, 5448, 5500, 2267, B32B 328, B32B 506, A47C 2700

Patent

active

050081411

ABSTRACT:
A cushioning material for mattresses is formed by needling a pile of crimped fibers to form a flat board, and then continuously and alternately bending the flat board to form a corrugated web. The corrugated web thus formed has a number of side-by-side contact portions and a number of bent portions connecting the side-by-side contact portions. The bent portions thus form a relatively soft surface portion of the cushioning material, and the side-by-side contact portions provide a moderately rigid portion of the cushioning material. The corrugated web may be held together by sewing, bonding or welding.

REFERENCES:
patent: 992354 (1911-05-01), Heermans
patent: 1644600 (1927-10-01), Morgan
patent: 1992603 (1935-02-01), Burgess
patent: 2029370 (1936-02-01), Heldenbrand
patent: 2339326 (1944-01-01), Fourness et al.
patent: 2627644 (1953-02-01), Fosters
patent: 2678686 (1954-05-01), Schulz
patent: 2689811 (1954-09-01), Frederick et al.
patent: 4761321 (1988-08-01), McCall et al.

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