Neutral safety lock for hydraulic implement controls
US3942602A · kind A · utility
3Cited by
2References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 29, 1974 |
| Grant date | Mar 9, 1976 |
| Priority date | — |
| Expiry date | May 29, 1994 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/20636
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
The two actuating levers of hydraulic pumps which control the direction and proportionate volumes of fluid flow to hydraulic motors in a hydraulic steering, speed, and direction control system may be locked in neutral by components located at the pumps but operated remotely from the cab of the vehicle. The geometry of the arrangement is such that any attempted movement on the part of the actuating levers once locked only tends to seat the locking components more firmly. Engine start-up is impossible unless the levers are locked in neutral.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.