Adjustable orifice valve and calibration method for ammonia applicator system
US9468940B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 13, 2012 |
| Grant date | Oct 18, 2016 |
| Priority date | — |
| Expiry date | Dec 24, 2034 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05B1/3046
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An ammonia applicator system is provided that has adjustable orifices with openings having variable sizes that can be changed remotely, without having to disassemble exit lines from a distribution manifold. In this way, the restriction of the exit lines and, thus, line flow rate can be adjusted remotely and/or automatically, even during ammonia application use. Each adjustable orifice may include a valve and an actuator that controls the valve for changing the size of the opening of the adjustable orifice. The actuator may be a rotary actuator, such as a stepper motor, and the valve may include an adjustment knob and a screw that can rotate to allow a needle to advance or regress through an opening of a valve body of the valve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.