Visual aid unit for trailer hitch alignment
FIG. 1 is a perspective view of a visual aid unit for trailer hitch alignment showing my new design, it being understood that the broken lines are for illustrative purposes only;
FIG. 2 is a side elevational view of the trailer hitch ball attachment of the visual aid unit of FIG. 1;
FIG. 3 is a front elevational view of FIG. 2;
FIG. 4 is a top plan view of FIG. 2;
FIG. 5 is a bottom plan view of FIG. 2;
FIG. 6 is a side elevational view of the trailer hitch socket attachment of the visual aid unit of FIG. 1;
FIG. 7 is a front elevational view of FIG. 6;
FIG. 8 is a top plan view of FIG. 6;
FIG. 9 is a bottom plan view of FIG. 6;
FIG. 10 is a perspective view of a visual aid unit for trailer hitch alignment showing a second embodiment of my new design, it being understood that the broken lines are for illustrative purposes only;
FIG. 11 is a side elevational view of the trailer hitch ball attachment of the visual aid unit of FIG. 10;
FIG. 12 is a front elevational view of FIG. 11;
FIG. 13 is a top plan view of FIG. 11;
FIG. 14 is a bottom plan view of FIG. 11;
FIG. 15 is a side elevational view of the trailer hitch socket attachment of the visual aid unit of FIG. 10;
FIG. 16 is a front elevational view of FIG. 15;
FIG. 17 is a top plan view of FIG. 15; and
FIG. 18 is a bottom plan view of FIG. 15.
| 3702029 | November 1972 | Anderson, Jr. |
| 3866328 | February 1975 | Alexander et al. |
| 3867898 | February 1975 | Lakamp |
| 3889384 | June 1975 | White |
Type: Grant
Filed: Jan 5, 1981
Date of Patent: Oct 11, 1983
Inventor: Jack Orr (Denton, TX)
Primary Examiner: James M. Gandy
Attorneys: Stanley R. Moore, Thomas L. Crisman, Thomas L. Cantrell
Application Number: 6/222,606
International Classification: D1216;
