Airless spray nozzle and method of making it
US4346849A · kind A · utility
91Cited by
8References
42Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 19, 1976 |
| Grant date | Aug 31, 1982 |
| Priority date | — |
| Expiry date | Jul 19, 1996 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49433
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An airless spray coating nozzle is made by cutting interpenetrating grooves into opposite sides of a nozzle tip blank. The groove on the pressurized or entrance side of the tip has a bottom portion which is wedge-shaped in cross section. The groove on the unpressurized or exit side of the tip has a bottom portion which is trapezoidal in cross section. Both grooves are cut into the nozzle tip with a grinding wheel after the tip has been hardened.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.