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
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