Terry W Liaboe

US Patent:

49489704, Aug 14, 1990

Filed:

Jan 23, 1989

Appl. No.:

7/299036

Inventors:

Eli A. Port - Evanston IL
John M. Bitner - Naperville IL
Irwin P. Lazarus - Skokie IL
Terry W. Liaboe - Highland Park IL
Richard E. Toohey - Downers Grove IL

Assignee:

Radiation Safety Services, Inc. - Morton Grove IL

International Classification:

G01T 1169
G01T 500

US Classification:

250253

Abstract:

A radon measuring device having a housing formed by at least two mating portions. The housing includes a plurality of apertures along at least one of its surfaces to permit entry of ambient atmosphere into said housing, a membrane or filter positioned proximate an interior surface of the housing covering the apertures for filtering the ambient atmosphere which enters the housing, and a radon detector within the housing positioned in a plane substantially normal to the surface of the housing containing the apertures. The housing can also include a filter holder within its interior for positioning both the filter and the detector in their respective positions as well as alignment tracks for alignment of the filter holder with respect to the housing.

US Patent:

49805509, Dec 25, 1990

Filed:

Oct 20, 1989

Appl. No.:

7/424873

Inventors:

Eli A. Port - Evanston IL
Terry W. Liaboe - Highland Park IL
Edward E. Sebesta - Lake Bluff IL

Assignee:

Radiation Safety Services, Inc. - Morton Grove IL

International Classification:

G01T 510

US Classification:

250255

Abstract:

A radon measuring device having a housing formed of at least two mating portions and coupled together by a fastener. At least one aperture extends through the housing to permit ambient atmosphere to enter the housing and includes a filter or membrane positioned to cover the aperture for filtering radon from other particles from the ambient atmosphere as it enters the housing. A radon detector is positioned within the housing for measuring the concentration of radon in the ambient atmosphere which passes through the aperture and the filter into the housing. A filter support member also is inclined for positioning the filter proximate the aperture and pressing the filter against the housing.

Address:

1850 Saddle Hl Rd, Libertyville, IL 60048

Phone:

(847)5731395

VIN:

5J6TF2H58AL002404

Make:

HONDA

Model:

ACCORD CROSSTOUR

Year:

2010