Vapor level control for vapor processing system
US4629420A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 26, 1986 |
| Grant date | Dec 16, 1986 |
| Priority date | — |
| Expiry date | Mar 26, 2006 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2208/00008
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A vapor processing system which has a vessel for containing a processing vapor generated by heating an electronic fluid contained within the vessel. A selected saturated vapor zone level is defined for work product delivered to the vapor zone by generating a signal representative of the actual temperature at one of a plurality of spaced locations, generating a signal representative of the desired temperature at the selected vertical location for a saturated vapor zone having a level selected for the work product being conveyed to the saturated vapor zone, generating data concerning product to be processed, and operating on the data for setting the means for generating a signal representative of the actual temperature and for setting the means for generating a signal representative of the desired temperature at the selected location, and comparing the generated signals representative of the actual and desired temperatures at the selected location and varying the output of the heater to change the actual sensed temperature to the desired temperature so that the actual saturated vapor zone level will conform to the desired saturated vapor zone level.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.