Spray gun having air cap with unique spray shaping features
US8113445B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 11, 2008 |
| Grant date | Feb 14, 2012 |
| Priority date | — |
| Expiry date | Apr 23, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S239/14
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A spray coating device, in one embodiment, is provided with a liquid passage, an air passage, one or more valves configured to open and close flow of liquid through the liquid passage and air through the air passage, a trigger coupled to the one or more valves, and a spray head configured to generate a non-conical liquid spray. The spray head includes a liquid exit in fluid communication with the liquid passage, wherein the liquid exit has a longitudinal axis of liquid flow, an air exit in fluid communication with the air passage, wherein the air exit is coaxial with the liquid exit, a first plurality of air shaping orifices in fluid communication with the air passage, wherein the first plurality of air shaping orifices have first axes that generally converge toward a first point along the longitudinal axis at first acute angles relative to the longitudinal axis, and a second plurality of air shaping orifices in fluid communication with the air passage, wherein the second plurality of air shaping orifices have second axes that generally converge toward a second point along the longitudinal axis at second acute angles relative to the longitudinal axis, the first and second acute ang…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.