Apparatus for making a one-piece, washable and sterilizable plas

Details Apparatus for making a one-piece, washable and sterilizable plas Apparatus for making a one-piece, washable and sterilizable plas

1982-03-03

1985-03-19

Jaudon, Henry S.

Plastic article or earthenware shaping or treating: apparatus

Distinct means to feed, support or manipulate preform stock...

Female mold type means

36 3B, 12142V, B29F 0100, B29C 0604, A43B 0706

Patent

active

045056609

ABSTRACT:
A one-piece, washable and sterilizable plastic shoe comprising a lower part with a top on which the foot bears and a bottom enveloping an outsole and a heel, and an upper part having ventilating openings in a substantially vertical lateral area, these openings having upper and lower outer boundary edges that are lower, respectively, than the corresponding upper and lower inner boundary edges thereof. The method for producing such a plastic shoe includes the steps of introducing mouldable plastic into a mould comprising top and bottom halves with a shoe last therebetween and simultaneously forming the lateral ventilating openings by means of spaced pins extending between the bottom-half mould and the last. The apparatus for producing the shoe comprises a mould having top and bottom halves with a shoe last therebetween and a plurality of pins extending from the bottom-half mould into removeable engagement with the shoe last. The pins are shaped and oriented to provide the desired configuration to the ventilating openings.

REFERENCES:
patent: 4032611 (1977-06-01), Fukuoka
patent: 4100685 (1978-07-01), Dassler
patent: 4322892 (1982-04-01), Inohara
Shurr Schuhvertrieb GmbH, Schwarzenbach/Saale & Anton Schur, Chem. pharm. Fabrik, Nettetal 1, Endlich Keimfrei, undated.

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