Collapsible radon monitor

- Rad Elec Inc.
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Description

FIG. 1 is a top and front perspective view of a collapsible radon monitor showing my new design, shown in an expanded position;

FIG. 2 is a top and front perspective view, shown in a collapsed position;

FIG. 3 is a front elevational view, shown in an expanded position;

FIG. 4 is a front elevational view, shown in a collapsed position;

FIG. 5 is a bottom plan view;

FIG. 6 is a top plan view; and

FIG. 7 is a left side elevational view thereof, the right side elevational view being identical.

The front and rear are identical in appearance and the left and right sides are identical in appearance for both the expanded and collapsed canister positions.

Referenced Cited
U.S. Patent Documents
D259865 July 14, 1981 Struby
D269858 July 26, 1983 Alter
D307850 May 15, 1990 Aoki et al.
3474844 October 1969 Lindstrom et al.
4518860 May 21, 1985 Alter et al.
4814608 March 21, 1989 Dempsey et al.
4853536 August 1, 1989 Dempsey et al.
4948970 August 14, 1990 Port et al.
4980550 December 25, 1990 Port et al.
Other references
  • Starcrest of California, Bellow Bottles, 2/22/89.
Patent History
Patent number: D318023
Type: Grant
Filed: Mar 2, 1989
Date of Patent: Jul 9, 1991
Assignee: Rad Elec Inc. (Frederick, MD)
Inventor: Robert W. Ramsey, Jr. (Damascus, MD)
Primary Examiner: Nelson C. Holtje
Assistant Examiner: Antoine D. Davis
Law Firm: Cushman, Darby & Cushman
Application Number: 7/317,792
Classifications
Current U.S. Class: Radiation, E.g., Geiger Counter (D10/47)