US 4,299,639 AGranted

Method for the production of laminates with spaced-apart glass panes

AssigneeFranz Xaver Bayer Isolierglasfabrik KG

InventorFranz Bayer

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Abstract

A shatter-, bullet- and/or soundproof laminate is assembled of two or more parallel glass panes and one or more layers of transparent synthetic plastic material, one layer between each pair of neighboring panes. The laminate is assembled while the lowermost pane is supported from below in a horizontal or nearly horizontal plane, and the plastic material is admitted in a liquid state by way of one or more rigid or deformable tubes which extend from the outside into the spaces between neighboring panes. At the same time, one or more additional tubes establish one or more paths for expulsion of air from such spaces. The panes can be pivoted, tilted and/or turned in the course of admission of plastic material. The tubes extend through removable or permanently installed strip- or bead-shaped seals which are disposed between or surround the marginal portions of the panes and seal the spaces between the panes from the surrounding atmosphere. The plastic material can be admitted in metered quantities, especially for the production of a long series of identical laminates.

Claims34

Dependent claims

A method of producing a laminate wherein a layer of light-transmitting synthetic plastic material is sandwiched between two glass panes, particularly a plastic material which enhances the soundproofing qualities of laminate, comprising the steps of locating a first glass pane in a substantially horizontal plane;

moving a second pane to a position of substantial parallelism with and above the first pane;
maintaining a second pane at a predetermined distance from the first pane so that the panes define a flat space of substantially constant height and sealingly securing the panes to each other all the way around said space, including inserting a seal between the marginal portions of the panes;
establishing in the seal a first path for admission into said space, at least at one first location between the panes, of liquefied plastic material which shrinks in response to setting;
admitting into said space such quantity of liquefied plastic material that, after setting, the plastic material completely fills said space and prevents inward bulging of the panes;
raising the pressure against the upper side of the second pane during and after admission of plastic material to prevent outward bulging of the second pane as a result of admission of plastic material, including drawing air from said space by suction at at least one second location which is disposed between said panes and is remote from said first location;
and causing the plastic material in said space to set.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application: 05/822,901Filed 8 Aug 1977
Priority: DE 26356417 Aug 1976
Granted: 10 Nov 1981
Term ends: Not estimatedThe source records don’t support an estimate.

Classification16 codes

B29C 66/45
Joining substantially flat articles ; Making flat seams in tubular or hollow articles: joining of substantially the whole surface of the articles
B29C 45/14467
Incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles: joining articles or parts of a single article
B29C 65/544
Between pre-assembled parts: by suction
B29C 66/1122
Single lapped joints: single lap to lap joints, i.e. overlap joints