Plastic and nonmetallic article shaping or treating: processes – Mechanical shaping or molding to form or reform shaped article – To produce composite – plural part or multilayered article
Patent
1986-01-06
1986-12-30
Silbaugh, Jan H.
Plastic and nonmetallic article shaping or treating: processes
Mechanical shaping or molding to form or reform shaped article
To produce composite, plural part or multilayered article
52426, 52565, 264251, 264256, B28B 116
Patent
active
046327967
ABSTRACT:
A method for manufacturing a sandwich wall panel by molding, formed from an inner bearing wall portion, an outer freely expandable wall and an insulating insert sheet, the wall portions being joined together by means of one of more elongate connecting elements and being held at a distance from each other by means of one or more rigid spacers interposed between the walls. Rigid spacers (11) are positioned at the bottom of a horizontal mold which have two opposite faces (12, 13) parallel to the bottom of the mold, as well as a slanting face (17) joining said opposite faces (12, 13) together and turned outwardly of the mold, each spacer (11) being held away from the bottom of the mold at a distance substantially equal to the thickness of the inner wall portion (15) by means of a support (27), the slanting faces (17) of the spacers (11) being all oriented in the same direction. Each connecting element (20) is disposed so that it rests on the slanting face (17) of a spacer, relative positioning elements between the connecting elements (20) and the spacer (11) being provided. The inner wall portion is cast at the bottom of the mold. On this wall portion is placed the insulating sheet in which localized recesses have been formed which are filled by the spacers (11). The outer wall portion is then cast on the insulating sheet.
REFERENCES:
patent: 2457982 (1949-01-01), Deichmann
patent: 4206163 (1980-06-01), Decoster
Groupement pour l'Industrialisation du Batiment "G.I.B.A.T."
Silbaugh Jan H.
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