Sequentially pulsed spraying system
US4465714A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 11, 1982 |
| Grant date | Aug 14, 1984 |
| Priority date | — |
| Expiry date | Aug 11, 2002 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA23N15/06
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Articles such as fruit on a conveyor are spray coated with liquid wax from a transverse row of sequentially pulsed spray nozzles controlled by microcomputer signals to solenoid nozzle valves. The computer is programmed to receive inputs from operator controlled panel switches which can be set to select the number of nozzles in the row; an excursion time during which all nozzles in a row spray and a pulse time during which one nozzle sprays. The computer limits the nozzle pulse time to dwell time equal to the quotient of the number of nozzles and the pulse time. The nozzles are automatically cleaned out by compressed air if the supply of fruit to the conveyor is interrupted for a predetermined period of time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.