The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 03, 1991
Filed:
Apr. 10, 1990
Claude M Wiblin, Summersville, WV (US);
Radon Testing Corporation of America, Irvington, NY (US);
Abstract
The device is a collapsible alpha track registration detector which will cost less to use and which can be used for measuring radon concentration over short and long term exposure times. The device includes a collapsible housing, defining an interior volume, in which is a strip of track registration material which forms damage tracks along paths traversed by alpha particles emitted during radioactive decay. The strip is retained within the housing on a cardboard holder to locate the strip at a predetermined location within the housing. The housing is a combination of a gusseted plastic bag and cardboard such that when collapsed it is a flat container but when in use it appears as a prism. The selected cardboard and plastic bag block particles and radon daughter products while admitting air and radon to the interior of the housing. The plastic bag has a hole to allow air to enter when being placed in use but the hole is sealed to one of the cardboard faces which prevents unwanted leakage. The detector includes a data form for entry of exposure information. The device with instructions will fit into a standard business envelope. Following use, the apparatus can become the return mailer.