Return to neutral device for a hydraulic apparatus
US6964164B1 · kind B1 · utility
26Cited by
21References
25Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 12, 2003 |
| Grant date | Nov 15, 2005 |
| Priority date | — |
| Expiry date | Jul 17, 2023 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16D31/02
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
In a hydrostatic device using an axial piston pump, a return plate is mounted so that it contacts the movable swash plate of the hydrostatic transmission. The plate is biased by a spring-type mechanism to force the swash plate to return to neutral, and the set position of the plate may be externally adjusted. A bias arm comprising a generally U-shaped member having spring mounted on either leg thereof may be engaged to the return plate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.