Cleaning and liquid contact with solids – Processes – Combined
Patent
1985-02-22
1986-07-29
Yeung, George
Cleaning and liquid contact with solids
Processes
Combined
134 2218, 134 23, 134 33, 141 90, 141 91, B08B 302
Patent
active
046029648
ABSTRACT:
A valve removal and cleaning system for flowable material filling devices includes a hopper for holding the material, a plurality of spaced-apart filling assemblies, each of which includes a cylinder mounted on the hopper and into which the material flows from the hopper, and a piston movable in the cylinder to force the material from the cylinder into containers. A plurality of valve housings interconnect the hopper with the cylinders, with each valve housing having an opening at the bottom thereof for receiving a valve element. A plurality of valve elements are provided for disposition in a respective valve housing, with the valve elements being mounted on a valve holder which in the form of a plate or a bracket located below the hopper. A frame support is positioned below the valve holder, and a locking mechanism operates to selectively lock the valve holder plate either to the frame support or to the hopper. The system is operated to lower the hopper and valve holder plate downwardly until the valve holder plate contacts the frame support, and the locking mechanism locks the valve holder plate to the frame support. The hopper is then raised to cause removal of the valve elements from the valve housings where spraying apparatus is then automatically operated to clean the valve housings and elements. The hopper is then automatically lowered so that the valve elements are reinserted into their housings, and then the valve holder plate is unlocked from the frame support and locked to the hopper to prepare for use in the container filling process.
REFERENCES:
patent: 1254190 (1918-01-01), Baker
patent: 2961013 (1960-11-01), Johnson
patent: 2998037 (1961-08-01), Bingham
patent: 3568734 (1971-03-01), Vadas et al.
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