Airless spray gun needle assembly
US5344120A · kind A · utility
3Cited by
11References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 3, 1993 |
| Grant date | Sep 6, 1994 |
| Priority date | — |
| Expiry date | May 3, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S239/19
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A needle assembly for an airless spray gun is provided with a needle which is centerless ground and electropolished to greatly increase life. Further life enhancements are gained by use of a plastic needle bushing in the needle clamp and provision of a specific length to diameter geometry for the needle yields enhanced life as well.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.