Field marking system
US6345772B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 30, 1999 |
| Grant date | Feb 12, 2002 |
| Priority date | — |
| Expiry date | Jul 30, 2019 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01M7/0089
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A field marking system includes a marking solution storage tank, a mixing volume fluidly connected to the storage tank and configured to mix marking solution from the storage tank with pressurized air, a nozzle fluidly connected to the mixing volume and an engine including a turbocharger. The turbocharger supplies pressurized air to at least one of the solution storage tank and the mixing volume. In one exemplary embodiment, the turbocharger supplies pressurized air to both the solution storage tank and the mixing volume. The marking system additionally includes a valve connected between the solution storage tank and the mixing volume and a control circuit coupled to the valve. In one exemplary embodiment, the control circuit generates a control signal such as the valve modulates based upon the control signal to vary production of marking medium. In one exemplary embodiment, the marking system further includes a vent valve connected to the solution storage tank and a fill valve connected to the solution storage tank. The vent valve and the fill valve are configured such that the fill valve cannot be opened until the vent valve is opened. In one exemplary embodiment, the field marki…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.