Tank mixture proportioning gauge

Description

FIG. 1 is a top and right front perspective view of a tank mixture proportioning gauge showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a top and right front perspective view of another embodiment of my new design of FIGS. 1-5;

FIG. 7 is a front elevational view thereof;

FIG. 8 is a left side elevational view thereof;

FIG. 9 is a top plan view thereof;

FIG. 10 is a bottom plan view thereof.

Referenced Cited
U.S. Patent Documents
D236885 September 1975 Wallace
D260974 September 29, 1981 Lesser
1508084 September 1924 Collis
2607122 August 1952 Overmyer
3535934 October 1970 Rapata
4445370 May 1, 1984 Whitmire
4531293 July 30, 1985 Grinde
4550602 November 5, 1985 Burke
Patent History
Patent number: D293087
Type: Grant
Filed: Mar 28, 1985
Date of Patent: Dec 8, 1987
Inventor: James E. Grinde (Anoka, MN)
Primary Examiner: Nelson C. Holtje
Attorneys: Orrin M. Haugen, Thomas J. Nikolai
Application Number: 6/717,170