Stock material or miscellaneous articles – Circular sheet or circular blank
Patent
1999-04-06
2000-10-17
Thomas, Alexander S.
Stock material or miscellaneous articles
Circular sheet or circular blank
428138, B32B 310
Patent
active
061328332
ABSTRACT:
A wafer for use in the selective connecting and disconnecting of plastic tubes incorporates a fuse in an aperture. The fuse is made of a three layer laminate having light transmission characteristics which change after the wafer and its laminate have been heated. The three layers comprise two outer transparent layers and an intermediate layer having limited light transmission characteristics. When the wafer is heated the intermediate layer shrinks thereby changing the light transmission characteristics by providing a path for light to pass through the laminate without passing through the intermediate layer.
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Denco
Thomas Alexander S.
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