Deformable vacuum holder with helical coil springs for...

Details Deformable vacuum holder with helical coil springs for... Deformable vacuum holder with helical coil springs for...

C - Chemistry, Metallurgy

03

B

269/1, 294/2, 49

C03B 23/035 (2006.01) B29C 51/10 (2006.01)

Patent

CA 1199796

ABSTRACT A deformable vacuum holder used in the shaping of sheets of glass or other deformable materials is provided with a plurality of longitudinally extending helical coil springs that enhance the durability of the deformable vacuum holder. When the outer diameter of the springs approximates the thickness of a chamber comprising said holder, the springs improve the resistance of the holder to collapse in response to the application of vacuum to said holder.

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