Plastic article or earthenware shaping or treating: apparatus – Preform severing means – Severing means is perforator
Patent
1993-01-11
1995-03-14
Nguyen, Khanh
Plastic article or earthenware shaping or treating: apparatus
Preform severing means
Severing means is perforator
264156, 425308, 425398, 425414, 425422, 425436RM, 425443, 425454, 425DIG37, B28B 144, B28B 302, B28B 718
Patent
active
053972287
ABSTRACT:
Device for the fabrication of concrete blocks having thin through holes for the drainage of water (perforated blocks), the fabrication taking place in at least one mold filled with concrete, which mold is supported on a mold table, and at least one male die for the compaction of the concrete. In order to create the thin holes, core pins are arranged in the region of the male dies or of the mold table or of the mold, which core pins are introduced inside the mold before the compaction of the concrete. Afterward, the concrete is compacted, the core pins are removed from the region of the mold, the compacted concrete blocks are completely demolded, and the concrete blocks are cured.
REFERENCES:
patent: 345272 (1886-07-01), Brown
patent: 1608727 (1926-11-01), Dickey
patent: 2091973 (1937-09-01), Fessler et al.
patent: 2611434 (1952-09-01), Mugler
patent: 3077658 (1963-02-01), Wharton
patent: 3891367 (1975-06-01), Signora
patent: 3920369 (1975-11-01), Boehringer et al.
patent: 3957409 (1976-05-01), Grosch
patent: 4057383 (1977-11-01), Bettonica
patent: 4063866 (1977-12-01), Lurbiecki
patent: 4525135 (1985-06-01), Forestier et al.
patent: 4725214 (1988-02-01), Piazza et al.
Metten Produktions-und Handels-GmbH
Nguyen Khanh
Schwab Charles L.
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