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
Foreign Patent Documents
2082139 | June 1937 | Bassetti |
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
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
Classifications
Current U.S. Class:
Dumping Or Trash Handling (D12/15);
Jack Or Jackstand (D34/31);
Wheel Chock Or Stop (D12/217)