Hydraulic shift mechanism for transfer case with multiple path drive system
US4149428A · kind A · utility
4Cited by
10References
7Claims
0Family size
Inventor
Key dates
| Filing date | Feb 23, 1977 |
| Grant date | Apr 17, 1979 |
| Priority date | — |
| Expiry date | Feb 23, 1997 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/19433
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
Apparatus for a transfer case that has a multiple path drive system including a neutral position, a first drive path of one speed range and a second drive path of a different speed range, the apparatus including (1) a hydraulic cylinder assembly having piston means movable to three positions and a rod connected to the piston means and to a shift mechanism of the transfer case for moving the shift mechanism of the transfer case selectively to one of the three positions of the drive system, and (2) a hydraulic control valve means for selectively controlling from a remote location operation of the hydraulic cylinder assembly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.