Method of fitting a butterfly valve on a slotted shaft
US4996769A · kind A · utility
4Cited by
10References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 23, 1990 |
| Grant date | Mar 5, 1991 |
| Priority date | — |
| Expiry date | Jan 23, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/4984
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A method is provided for fitting a butterfly valve on the slotted shaft of a carburetor body. The slot is first of all oriented parallel to the axis of the duct. Then one edge of the butterfly valve is gripped by a gripping member and is inserted as far as its final position by moving the member along the axis of the duct. The unit formed by the butterfly valve and the shaft is rotated as far as the position in which the butterfly valve closes the duct by exerting a force with the gripping member and a retaining torque with a motor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.