Multiple pane windows with improved seals

Details Multiple pane windows with improved seals Multiple pane windows with improved seals

1976-06-29

1978-10-17

Robinson, Ellis

Stock material or miscellaneous articles

Hollow or container type article

Glass, ceramic, or sintered, fused, fired, or calcined metal...

52172, 52790, 156101, 156107, 156109, 156295, 428212, 428419, 428426, 428440, 428441, 428194, B32B 104, E04C 234

Patent

active

041209990

ABSTRACT:
In the production of a multiple pane window, a multiple layer plastic filamentary seal is deposited on the face of a transparent or translucent sheet adjacent the edges thereof over a major portion of the periphery. The seal is deposited by an extrusion nozzle from a starting point to an end point at a corner, by relatively moving and rotating the sheet past the nozzle. At least one layer of the multiple layer seal contains a larger proportion of desiccant material and another layer contains a smaller proportion or no desiccant material. At the starting and/or end points only the layer or layers containing the smaller proportion or no desiccant material is extruded. In a modification, at each corner only the layer or layers containing the smaller proportion or no desiccant material is extruded. A process for applying the seal, a multiple pane window resulting therefrom, and apparatus for applying the seal are described.

REFERENCES:
patent: 3473988 (1969-10-01), Rullier
patent: 3531346 (1970-09-01), Jameson
patent: 3733237 (1973-05-01), Wolff
patent: 3791910 (1974-02-01), Bowser
patent: 3876489 (1975-04-01), Chenel

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