Trailer hitch assembly
US5890727A · kind A · utility
Inventor
Key dates
| Filing date | May 8, 1997 |
| Grant date | Apr 6, 1999 |
| Priority date | — |
| Expiry date | May 8, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60D1/07
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A trailer hitch assembly that includes a hitch mount member having a chassis mount plate, a hitch mount plate having a plate mounting aperture bored entirely therethrough and four spaced alignment bores formed therein, and an extension arm in connection between the chassis mount plate and the hitch mount plate; a multi-ball hitch unit including a cross-shaped ball support structure including four support arms extending radially outward from a center portion having a structure mounting aperture formed therethrough; three trailer mount balls, each secured to the end of one of the four support arms; and a pintel hook secured to the end of the remaining one of the four support arms; and a positioning mechanism including a bolt assembly including a bolt having a cap portion and a threaded shaft portion; a securing nut threadable onto an end of the threaded shaft portion; a biasing spring; and two alignment pins, the alignment pins extending perpendicularly with respect to two of the four support arms and being positioned in a manner such that when the plate mounting aperture and the structure mounting aperture are in alignment the alignment pins are positionable in registration with two…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.