BUOYANT PUMP ASSEMBLY

摘要

A drilling mud water recovery apparatus for water collecting on drilling mud precipitated out of the mixture includes a buoyant pump assembly free floating on a layer of water above drilling mud. The pump assembly is connected with a source of electrical energy through electrical controls for a predetermined timed operation of the pump and protecting the pump motor against high and low voltages above or below a predetermined value and a current interrupting function in the event of an electrical short.