Grain bin with side walls having integral vertical stiffeners and air conduits

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Description

FIG. 1 is a front side elevational view of a grain bin with side walls having integral vertical stiffeners and air conduits according to the present invention;

FIG. 2 is a top plan view thereof;

FIG. 3 is a right side elevational view thereof;

FIG. 4 is a rear side elevational view thereof;

FIG. 5 is a sectional view taken along lines 5--5 of FIG. 1; and,

FIG. 6 is a sectional view taken along lines 6--6 of FIG. 5.

Referenced Cited
U.S. Patent Documents
D68729 November 1925 Paige
D141498 June 1945 Norquist et al.
D195761 July 1963 McVicar et al.
D220615 May 1971 Thompson
D234132 January 1975 Varian
957381 May 1910 Rowland
1191863 January 1916 Williams
1605513 November 1926 Connery
1977391 October 1934 Kramer
1996004 March 1935 Fraser
3196774 July 1965 Kripal
3299598 January 1967 Alleaume
3531874 October 1970 Sukup
3608204 September 1971 Ashby
4009520 March 1, 1977 Sukup
4319411 March 16, 1982 Steffen
4380573 April 19, 1983 Naslund
4729198 March 8, 1988 Nethery
4885985 December 12, 1989 Pollock
Other references
  • Butler Grain Bins "Armco-Ignot Long Life Line".
Patent History
Patent number: D378136
Type: Grant
Filed: Nov 20, 1995
Date of Patent: Feb 18, 1997
Assignee: Butler Manufacturing Company (Kansas City, MO)
Inventor: George E. Miller, Jr. (Raytown, MO)
Primary Examiner: Louis S. Zarfas
Assistant Examiner: Gregory Andoll
Law Firm: Kokjer, Kircher, Bowman & Johnson
Application Number: 0/46,540