Notched needle bounce eliminator
US5636827A · kind A · utility
7Cited by
2References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 20, 1994 |
| Grant date | Jun 10, 1997 |
| Priority date | — |
| Expiry date | Sep 20, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S251/903
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A device comprises an armature movable in a first direction and a second direction for causing a needle to contact and separate from a seat assembly. Stop means provide a motion stop in at least the first direction. Damping means are applied to the needle for reducing bounce of the needle when the needle contacts the stop means, by altering spring rates and vibration modes of the needle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.