Manufacture of abrasion-resistant screening apparatus

Details Manufacture of abrasion-resistant screening apparatus Manufacture of abrasion-resistant screening apparatus

1970-09-04

1976-08-03

Hoag, Willard E.

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

To produce composite, plural part or multilayered article

264259, 264269, 264271, 264273, 264299, 264DIG70, B29D 302, B29D 900, B29G 700

Patent

active

039729745

ABSTRACT:
A perforate screening member having a substrate with an upper surface and perforation sidewalls covered with elastomer to protect against abrasion is formed by casting elastomer into place adhered to the substrate at locations to be protected.

REFERENCES:
patent: 1718385 (1929-06-01), Sherwood
patent: 2397626 (1946-04-01), Shriver
patent: 2915789 (1959-12-01), Dykstra et al.
patent: 3121660 (1964-02-01), Hall
patent: 3129269 (1964-04-01), Charvat
patent: 3285767 (1966-11-01), Farkas
patent: 3471178 (1969-10-01), Roe
patent: 3540314 (1970-11-01), Howard
"Chemical & Engineering News," vol. 27, No. 11, Mar., 1949, p. 735.

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