US PATENT SUBCLASS 52 / 900
HAZARDOUS MATERIAL PERMEATION PREVENTION (E.G., RADON)


Current as of: June, 1999
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52 /   HD   STATIC STRUCTURES (E.G., BUILDINGS)

900HAZARDOUS MATERIAL PERMEATION PREVENTION (E.G., RADON)


DEFINITION

Classification: 52/900

Hazardous material permeation prevention (e.g., radon):

A collection of documents relating to shielding, ducting, venting, or otherwise controlling the flow or migration of dangerous substances, emanating from the surrounding earth, into an enclosed habitat such as the basement of a building.

(1) Note. This collection is intended to provide a locus for formation regarding the control of the several varied gases which have been identified as being health hazards; an example which is considered to be illustrative, but not limiting, is radioactive radon gas; also included are any organic toxic waste fumes which have been linked to ill health.

SEE OR SEARCH THIS CLASS, SUBCLASS:

169+, for vapor barriers, drains, and other structures designed to insulate and prevent the flow of water into a basement.