Hydraulic apparatus with return to neutral mechanism
US6968687B1 · kind B1 · utility
28Cited by
60References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 22, 2004 |
| Grant date | Nov 29, 2005 |
| Priority date | — |
| Expiry date | Jul 22, 2024 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60K17/105
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A control mechanism for a hydraulic drive apparatus such as a transaxle having a hydraulic pump and moveable swash plate mounted in a housing including a control arm for moving the swash plate between forward and reverse positions and a unidirectional return to neutral mechanism for biasing and returning the swash plate to a neutral position when the control arm is in one of the reverse or forward positions but not from the other position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.