Refrigeration – Processes – Treating an article
Patent
1992-12-18
1993-12-21
Bennett, Henry A.
Refrigeration
Processes
Treating an article
62 62, 62293, 241DIG37, 134 17, F25D 1702, F25D 2500, F25D 300, B08B 702
Patent
active
052712346
ABSTRACT:
A method for removing tile adhered by a substance to a floor includes the step of enclosing a volume generally above an area of the floor and tile, with the tile and floor defining the bottom of the volume enclosed. The temperature in the volume enclosed is reduced so that the substance adhering the tile to the floor becomes embrittled. The apparatus is maintained in position over the area of the floor for a predetermined time to produce the required embrittlement of the adhering substance, and then moved to expose the area of the floor previously below the volume enclosed. The tile is then removed from the floor. An apparatus for use in the method is also disclosed.
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Carter David L.
Simms James B.
Bennett Henry A.
Carter David L.
Kilner Christopher B.
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