Color valve multiplexer
US5318065A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 20, 1992 |
| Grant date | Jun 7, 1994 |
| Priority date | — |
| Expiry date | Nov 20, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/86461
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A coating material dispensing system comprises a hazardous area and a non-hazardous area. Multiple coating material type controls have coating material input ports, coating material output ports, and control ports for controlling the passage of a type of coating material controlled by each respective coating material type control from its input port to its output port. A controller generates control signals for controlling the multiple coating material type controls. The control signals are multiplexed in the non-hazardous area, and transmitted into the hazardous area where they are demultiplexed and provided to the coating material type controls. The demultiplexer and coating material type controls are intrinsically safe.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.