Injection spray system with adjustable metering valve
US6182911A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 1, 1999 |
| Grant date | Feb 6, 2001 |
| Priority date | — |
| Expiry date | Jul 1, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05B7/2443
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An injection spraying system includes a container having a compartment configured to hold a first fluid. A valve body is removably coupled with the container and includes a mixing chamber, an inlet passageway configured to deliver a second fluid to the mixing chamber, a discharge passageway extending from the mixing chamber, a stem compartment communicating with the mixing chamber through a control orifice, and a transition passageway in fluid communication with the stem compartment. Movably disposed within the stem compartment is a metering stem having a tapered nose configured to selectively engage the control orifice. An adjustment knob is mounted to the metering stem such that rotation of the adjustment knob selectively advances and retracts the metering stem within the chamber of the meter tube. A siphoning tube has one end disposed within the compartment of the container and an opposing end in fluid communication with the transition passageway.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.