Clutch arm centering device
US6443424B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 19, 2000 |
| Grant date | Sep 3, 2002 |
| Priority date | — |
| Expiry date | May 19, 2020 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF15B13/0444
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A clutch arm centering device is disclosed. The device is mounted on a clutch using to operate piston valves on a crane or other heavy machine. The piston valves may be operated using a valve arm which has two operative positions and a neutral position between the two operative positions. A clutch arm of the clutch is linked to valve arm to allow the valve arm to be manipulated by a remote control coupled to the clutch. As parts of the linkage between the clutch arm and the valve arm wear, the centering device biases the clutch arm to a central position which corresponds to the neutral position of the valve arm, thereby avoiding problems of understroking and overstroking which arise in the prior art.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.