Boot and shoe making – Processes – Moccasins
Patent
1982-03-03
1984-10-16
Schroeder, Werner H.
Boot and shoe making
Processes
Moccasins
12142R, 36 3B, 36 87, 264244, A43B 708, A43B 706, B29F 100
Patent
active
044766009
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: 2239377 (1941-04-01), Altvater
patent: 2398623 (1946-04-01), Daniels
patent: 4032611 (1977-06-01), Fukuoka
patent: 4078321 (1978-03-01), Famolare, Jr.
patent: 4100685 (1978-07-01), Dassler
patent: 4237628 (1980-12-01), Etancelin
patent: 4408401 (1983-10-01), Seidel
Shurr Schuhrertrieb GmbH, Schwarzenbach/Saale & Anton Schur, Chem. Pharm. Fabrik, Nettetal 1, Endlich Keimfrei, Undated.
Hammerschmidt Winrich B.
Seidel Hartmut
Meyers Steven N.
NATEC Institut
Schroeder Werner H.
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