Patent ID: 6012212
Filing Date: 2000-01-11
Classification: B29C,B29K,B29L,Y10T

Abstract:
A method of manufacturing a rotationally molded tank with a tank opening and an internal agitation portion, the method comprising the steps of:a) placing an assembled agitation portion comprising a shaft into an open tank mold;b) adding plastic resin into the open mold;c) closing the mold;d) heating and rotating the mold whereby the plastic resin is melted and is distributed along an inside surface of the closed mold;e) allowing the mold and melted plastic resin to cool thereby solidifying plastic on the inside surface of the closed mold in a configuration of the tank;f) removing the solidified plastic from the mold; andg) mechanically connecting the agitation portion to a drive component whereby the agitation portion may be moved to agitate liquid in the tank.