Kolcor Technologies LCC, a supplier of screen changers in Agawam, Mass., has been awarded a U.S. patent for a unique sealing device is uses on its line of hydraulic and manual screen changers.
The patent was issued July 28.
Kolcor has used the sealing device since the company began selling screen changers in 2012. The seal ensures no material leakage up to 10,000 pounds per square inch and temperatures up to 650-degrees F.
“The seal is supplied standard on all our hydraulic and manual screen changers,” Kolcor President Chris Kowal said. “Unlike other designs, which need to get up to operating temperature for the seal to work, our seal features springs that provide lock-up force for immediate seal protection.”
Once the Kolcor screen changers is running at operating temperature, the polymer pressure only increases the seal force.
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