Method of making cushion material

Details Method of making cushion material Method of making cushion material

2007-05-03

2009-12-01

Crispino, Richard (Department: 1791)

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

C156S253000, C156S267000, C156S292000

Reexamination Certificate

active

07625458

ABSTRACT:
A method of making a cushion material includes the steps of pressing a pad onto a die with a plurality of protrusions to form a plurality of protrusion portions on the pad, and then attaching an upper layer on transversely cutting the protrusion portions of the pad to separate the upper layer and the die and form the pad with a plurality of pad members thereon, and then attaching a lower layer on the other side of the pad members to form a three-layer cushion material.

REFERENCES:
patent: 2915785 (1959-12-01), Valentini
patent: 4731139 (1988-03-01), Feyerabend et al.
patent: 5242519 (1993-09-01), Wu

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