Underground tornado shelter

Description

FIG. 1 is a perspective view of an underground tornado shelter embodying the present design;

FIG. 2 is an elevational view of an underground tornado shelter illustrated in FIG. 1, showing the side opposite that shown in FIG. 1;

FIG. 3 is a vertical cross sectional view of the underground tornado shelter, the section being taken on line 3--3 of FIG. 1;

FIG. 4 is a vertical cross sectional view of the underground tornado shelter, the section being taken on line 4--4 of FIG. 3;

FIG. 5 is an elevational view of the present underground tornado shelter showing the end seen in FIG. 1; and

FIG. 6 is an elevational view of the end of the underground tornado shelter shown in the preceding figures, showing the end opposite that seen in FIGS. 1 and 5.

Referenced Cited
U.S. Patent Documents
3145640 August 1964 Jaha
3212220 October 1965 Boniecki et al.
3230911 January 1966 Garlock, Jr.
Patent History
Patent number: D242924
Type: Grant
Filed: Mar 24, 1975
Date of Patent: Jan 4, 1977
Inventor: Charles E. McKnight (Salem, IN)
Primary Examiner: A. Hugo Word
Attorney: Marmaduke A. Hobbs
Application Number: 5/561,557
Classifications
Current U.S. Class: Underground Service Vault (4) (D25/36)
International Classification: D2503;