Universal safety blocks for dump trucks

Description

FIG. 1 is a side elevational view of universal safety blocks for dump trucks showing our new design.

FIG. 2 is an elevational view of the opposite side thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a side elevational view thereof partially in section taken along the line 7--7 of FIG. 3; and,

FIG. 8 is a side elevational view thereof partially in section taken along the line 8--8 of FIG. 3.

The transverse rod has been broken away in the middle in FIGS. 3, 4, 5, and 6 to indicate indeterminate length.

Referenced Cited
U.S. Patent Documents
2082139 June 1937 Bassetti
Foreign Patent Documents
101834 June 1983 JPX
101833 June 1983 JPX
136527 August 1983 JPX
141942 August 1983 JPX
Patent History
Patent number: D300309
Type: Grant
Filed: Jun 16, 1986
Date of Patent: Mar 21, 1989
Inventors: Ralph E. Miller (Moore, OK), Randall J. Miller (Moore, OK)
Primary Examiner: James M. Gandy
Attorney: Glen M. Burdick
Application Number: 6/875,758