Hitch pin assembly for a tractor-scraper vehicle and the like
US3980321A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 23, 1974 |
| Grant date | Sep 14, 1976 |
| Priority date | — |
| Expiry date | Dec 23, 1994 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T403/32909
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A hitch pin assembly for a tractor-scraper vehicle and the like in which the assembly serves as an articulation element in a location encumbered with many other pieces of equipment causing difficult access. The assembly comprises a pivot pin threaded on both ends and formed for fitting completely axially through a pair of machine elements mounted on the tractor and scraper respectively, a pair of adjusting nuts internally threaded to fit the threaded ends of the pivot pin, and a pair of locking elements in the form of retainer plates adapted to fit over the pair of adjusting nuts and restrain them against rotation with respect to the machine elements.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.