Plastic and nonmetallic article shaping or treating: processes – With step of cleaning – polishing – or preconditioning...
Patent
1989-09-19
1990-04-17
Silbaugh, Jan H.
Plastic and nonmetallic article shaping or treating: processes
With step of cleaning, polishing, or preconditioning...
2642976, 2642977, 264336, 264338, B28B 306, B28B 500, B28B 710, B28B 736
Patent
active
049178385
ABSTRACT:
A method of manufacturing bricks with smooth surfaces includes the steps of providing a mould container with a movable bottom, washing the mould container, placing a layer of releasing material in the mould container, filling the mould container with clay and trimming off the container. Only the bottom of the container is filled with a releasing material and the bottom of the container is moved so that it is virtually outside of the mould container.
REFERENCES:
patent: 750059 (1904-01-01), Oberdahn
patent: 1082231 (1913-12-01), Nale
patent: 1331323 (1920-02-01), Crouch
patent: 1435569 (1973-10-01), Glendinning
patent: 1529453 (1925-03-01), Strickland
patent: 1529692 (1925-03-01), Davis et al.
patent: 2716070 (1955-08-01), Seipt
patent: 3739050 (1973-06-01), Koncz et al.
patent: 3974247 (1976-08-01), Tardieu
patent: 4378202 (1983-03-01), Kosman
Kutach Karen
Machinefabriek De Boer B.V.
Silbaugh Jan H.
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