US 5,296,083 AGranted

Process and apparatus for removal of asbestos floor tile

OwnerOnofrio G. Petinoinventor

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Abstract

A method for removal of asbestos floor tile comprising the following steps: lowering the temperature of a selected tile section and the adhesive material between said tile(s) and the juxtaposed subflooring; maintaining the temperature reducing agent for a period of time sufficient to cause said adhesive material/layer to substantially lose its bonding properties; removing the de-bonded asbestos tile from the subflooring and disposing according to Governmental regulations. A manually transportable housing dimensioned for receiving therewithin a quantity or block of dry ice. Said housing having a bottom section defining an opening for being aligned with a selected asbestos floor tile(s). Blower means mounted to said housing for directing an air stream over said dry ice and downwardly through said opening unto said tile(s).

Claims1

Dependent claims

A relatively safe method for the removal and containerization of obsolete floor tile previously adhered to a subfloor by a bonding agent, which floor tile contains one or more hazardous materials, comprising the steps of:

applying a temperature reducing agent selected from the group consisting of dry ice and a cryogen to one or more selected floor tiles for a selected period of time for causing a reduction of the temperature of the selected floor tile and the underlying bonding agent to a level whereby the bonding agent is rendered substantially ineffective as a bonding medium;
uplifting the debonded floor tile in substantially uniform and unbroken floor tile sections;
stacking the uplifted uniform floor tile sections into container means;
sealing said container means for shipment;
whereby the debonded floor tile may be removed and containerized with virtually a zero hazardous material air contamination risk to the workers.

2 more elements

Dependencies are inferred from the claim text.