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US 6,059,003 AGranted
Web heating and pressing apparatus
AssigneeIntegrated Design Limited
InventorEugene W. Wittkopf
Life of this patent
Estimating the term…
Abstract
Hot stamping apparatus and embossing apparatus for the production of holographic images on a substrate web, each apparatus comprising a heated roll and an anvil each having trunnions at its ends journalled for rotation in bearings in a frame with a cooling system for cooling the bearings for all the trunnions and for cooling the trunnions of the heated roll.
Claims19
Web heating and pressing apparatus comprising:
- a frame;
- a heated roll and an anvil roll each having trunnions at its ends journalled for rotation in bearings in the frame with the axes of the rolls at least substantially parallel and with the rolls so mounted as to provide a web pass plane between the rolls;
- a cooling system for cooling the bearings for the trunnions of the heated roll, for cooling the bearings for the trunnions of the anvil roll, and for cooling the trunnions of the heated roll, said system comprising:
- passaging for flow of coolant in heat-transfer relation with each of the bearings for the trunnions of the heated roll,
- passaging for flow of coolant in heat-transfer relation with each of the bearings for the trunnions of the anvil roll, and
- cooling chambers for flow of coolant therethrough in heat-transfer relation to the trunnions of the heated roll,
- said passaging and cooling chambers being connected in a circuit for circulation of coolant therethrough for cooling the bearings of each roll and the trunnions of the heated roll.
4 more elements
Dependencies are inferred from the claim text.