Vacuum ring for producing laminated glass

Details Vacuum ring for producing laminated glass Vacuum ring for producing laminated glass

1987-10-26

1988-11-01

Dawson, Robert A.

Adhesive bonding and miscellaneous chemical manufacture

Surface bonding means and/or assembly means therefor

Chamber enclosing work during bonding and/or assembly

156 87, 156104, 156285, 156286, B32B 3124

Patent

active

047817836

ABSTRACT:
A vacuum ring is coupled to a vacuum source and utilized to de-air a laminated glass assembly while it is positioned within a pressurized and heated autoclave unit. The vacuum ring has a channel for receiving the edge of the glass assembly and is fabricated to minimize the extrusion of the laminating material during the autoclave operation. The walls of the channel each have a single longitudinally extending groove approximately centered between the edges of the wall, and the floor of the channel includes a single longitudinally extending groove positioned to be adjacent the edge of a laceration shield layer of the glass assembly. All three grooves interconnect with the vacuum source. The channel generally conforms to the outer edge of the glass assembly with or without applied vacuum or pressure, and the provision of grooved walls greatly enhances the sealing of the ring to the glass.

REFERENCES:
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patent: 2948645 (1960-08-01), Keim
patent: 2992953 (1961-07-01), Talburtt
patent: 3074466 (1963-01-01), Little
patent: 3074838 (1963-01-01), Little
patent: 3281296 (1966-10-01), Jameson
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patent: 4242403 (1980-12-01), Mattimoe et al.
patent: 4624731 (1986-11-01), Ash et al.
patent: 4647327 (1987-03-01), Rase

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