Push-pull coupling for power scrapers
US4266798A · kind A · utility
7Cited by
6References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 14, 1979 |
| Grant date | May 12, 1981 |
| Priority date | — |
| Expiry date | Feb 14, 1999 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB62D53/02
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A push-pull coupling (18) for wheel supported power scrapers (10 and 14) has a coupling means (26) supported for cushioned fore-and-aft movement in a mounting frame (21) at the rear of a first power scraper (10) and a power operated bail (39) at the front of a second power scraper (14). The coupling means (26) has a rearwardly facing hook (37) against which a bight (39a) of the bail (39) may push, and a forwardly facing hook (38) against which the bight (39a) of the bail (39) may pull.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.