Digital control device
US8403649B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 17, 2008 |
| Grant date | Mar 26, 2013 |
| Priority date | — |
| Expiry date | Dec 19, 2030 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04B9/117
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A digital control system for monitoring and controlling a concrete pumping system. A microcontroller provides control signals and receives feedback from associated comparator switch subsystems. Feedback from the comparator switch subsystems is used by a microcontroller to determine whether short circuit or open circuit malfunctions are occurring on solenoids valves attached to the output of the comparator switch subsystems. Said control system exhibits an electronic control means to control the admittance or interruption of current through said solenoids. Individual solenoid status is sent to a graphical display where an operator views said display to diagnose failure modes. The microcontroller further monitors the establishment of temporal initial conditions and limits operational pump activity until said temporal conditions are met.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.