Upstream inlet injector
US5775592A · kind A · utility
4Cited by
18References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 16, 1996 |
| Grant date | Jul 7, 1998 |
| Priority date | — |
| Expiry date | May 16, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/87619
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An apparatus and method for injecting a chemical upstream of a pressure washer includes an injector valve comprising a housing having a passageway through which the wash stream flows. The injector is installed upstream of the pressure washer pump. A chemical inlet is formed downstream from an adjustable orifice which causes the chemical to be drawn into the passageway through the chemical inlet. The injector also includes a plunger in which the adjustable orifice is formed. By moving the plunger, the passageway can be opened or blocked allowing the chemical to be selectively injected into the wash stream.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.