Dispensing assembly with shut off valve, backflow preventer, and methods of operating the same
US8763862B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 11, 2013 |
| Grant date | Jul 1, 2014 |
| Priority date | — |
| Expiry date | Jun 11, 2033 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB08B2203/0282
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A dispensing assembly for dispensing a mixture of fluids is provided. In some embodiments, the dispensing assembly includes a first valve for selectively permitting fluid flow to a mixing chamber in which a second fluid is introduced, wherein the valve is actuated between open and closed positions responsive to fluid pressure downstream of the mixing chamber. In such embodiments, the fluid pressure downstream of the mixing chamber can change based upon whether fluid is dispensed from a spray gun, wand, nozzle, or other dispensing head of the dispensing assembly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.