Molding apparatus for ribbed product

Details Molding apparatus for ribbed product Molding apparatus for ribbed product

1975-07-07

1977-07-05

Spicer, Jr., Robert L.

Plastic article or earthenware shaping or treating: apparatus

Means casting fluent stock operably associated with shaping...

425335, 425336, 425371, 425373, 425388, 425394, 425396, 425471, 425DIG44, 156505, 425369, 425363, B29C 1500

Patent

active

040337090

ABSTRACT:
This invention concerns apparatus for moulding ribs, ridges, studs or other upstanding projections on a mouldable material and although not so restricted it will hereafter be described with reference to its use on apparatus for moulding dry formed fibrous material.

REFERENCES:
patent: 1938444 (1933-12-01), Vedder
patent: 2337969 (1943-12-01), Bugge
patent: 2343363 (1944-03-01), Black et al.
patent: 2609314 (1952-09-01), Engel et al.
patent: 2782461 (1957-02-01), Esslinger
patent: 2837042 (1958-06-01), Laval, Jr.
patent: 3235643 (1966-02-01), Hofer
patent: 3399425 (1968-09-01), Lemelson
patent: 3932089 (1976-01-01), Ando

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