Stock material or miscellaneous articles – Web or sheet containing structurally defined element or... – Composite having voids in a component
Patent
1994-01-25
1995-06-13
Lesmes, George F.
Stock material or miscellaneous articles
Web or sheet containing structurally defined element or...
Composite having voids in a component
4283186, 428613, 428623, 428636, 525881, 525891, 525921, E04C 110, B32B 320
Patent
active
054241189
ABSTRACT:
Refrigeration units such as walk-in coolers and freezers, particularly interlocking insulative panels used in construction of such units. The individual insulative panels are characterized by a densified urethane perimeter and a core of low density insulating urethane abutting the perimeter and held in place by a thin outer skin. The densified urethane perimeters of the panels have a tongue-in-groove configuration, as well as a cam locking means, securing abutting panels together.
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Copenheaver Blaine R.
Lesmes George F.
Mid-South Industries, Inc.
Semmes David H.
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