Variable colorant blender
US4723712A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 16, 1986 |
| Grant date | Feb 9, 1988 |
| Priority date | — |
| Expiry date | Apr 16, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/87684
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A variable colorant blender is provided for use as adjunct to an airbrush (A) or other spray gun. It includes a plurality of metering valves or similar devices which are actuatable wholly independently of one another for enabling the user to obtain and continuously change any colorant blend and also to perform a rapid rinsing. In preferred embodiments electric metering valve actuators are provided, which are energized by electronic circuit means contained in a control box (16) remote from that portion (10) of the blender which is affixed to the airbrush or other spray gun in replacement of the usual colorant-containing vessel 1, such control box having slides (41) for presetting and changing the proportions of colorants in the discharged blend, and possibly also a push-button (42) for controlling the amount of cleaning liquid (solvent).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.