Structural beam for concrete form systems

- Wilian Holding Company
Description

FIG. 1 is a front perspective view of a structural beam for concrete form systems showing my new design;

FIG. 2 is a side elevational view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a top plan view thereof; and,

FIG. 5 is a cross-sectional view taken along line 5--5 of FIG. 3.

Referenced Cited
U.S. Patent Documents
861924 July 1907 Weatherly, Sr.
1242892 October 1917 Wagner
2067403 January 1937 Lea
3094197 June 1963 Attwood
3141531 July 1964 Montgomery
Patent History
Patent number: D325261
Type: Grant
Filed: Jan 5, 1990
Date of Patent: Apr 7, 1992
Assignee: Wilian Holding Company (Des Moines, IA)
Inventor: Robert G. McCracken (Des Moines, IA)
Primary Examiner: A. Hugo Word
Assistant Examiner: Doris Clark
Attorneys: Kent A. Herink, Brian J. Laurenzo
Application Number: 7/461,353
Classifications