Method of making carpet underlay

Details Method of making carpet underlay Method of making carpet underlay

1975-06-26

1976-09-07

Kucia, Richard R.

Plastic and nonmetallic article shaping or treating: processes

Pore forming in situ

By gas forming or expanding

264166, 264219, 264293, 264322, B29D 2700

Patent

active

039794890

ABSTRACT:
A method of making a carpet underlay is provided wherein the underlay is comprised of a sponge rubber body having a load-carrying surface defined by a plurality of cooperating closed-area coplanar portions which define the major part of the area of a plan view of such body.

REFERENCES:
patent: 2180304 (1939-11-01), Minor
patent: 3455772 (1969-07-01), Mason

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