D.I.G. Foam spacer

Stock material or miscellaneous articles – Hollow or container type article – Glass – ceramic – or sintered – fused – fired – or calcined metal...


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52399, 428213, 428313, 428315, 428425, 156109, 52790, E06B 324, B32B 518




A composite foam spacer for precision separation of the plates in double insulated glass comprises a thin extruded core and a relatively thick foam layer cast to the core so that the resulting coefficient of expansion of the composite is equal to that of the foam layer and approximately equal to that of glass. The cast foam spacer has good thermal insulating properties, reducing heat transfer between the glass panes, and reducing the differential dimensional change between the glass and the spacer, resulting in a structurally stronger sealed unit.

patent: 2992939 (1961-07-01), Larson
patent: 3439075 (1969-04-01), Bauer
patent: 3443984 (1969-05-01), Stewart
patent: 3528458 (1970-09-01), Gaekel
patent: 3730660 (1973-05-01), Raffenberg
patent: 3775914 (1973-12-01), Patil
patent: 3840626 (1974-10-01), Laskawy
patent: 3855028 (1974-12-01), Larson
patent: 3872198 (1975-03-01), Britton
patent: 3991146 (1976-11-01), Barrie


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