Patent ID: 6582205
Filing Date: 2003-06-24
Classification: F04B

Abstract:
A system for use in the food preparation or waste water management industry to handle grease/water mixtures, the system comprising:(a) a source of a grease/water mixture; (b) a separator unit for separating the grease/water mixture into a grease and a gray water, the separator unit comprising a vessel including an inlet, an outlet, an access port, and a section within the vessel for inducing the grease of the grease/water mixture to the access port of the separator unit while diverting the gray water of grease/water mixture to the outlet; (c) a retainer for storing the grease part; (d) an inlet line for transmitting the grease/water mixture from the source to the separator; (e) an outlet line for directing the gray water from the separator unit to a drain or a sewer line; (f) an access line for directing the grease part from the separator unit to the retainer; and (g) a pump for conveying the grease through the access line by supplying and expelling a motivating-fluid, the pump comprising: (i) a body having a cavity, a movable biasing boundary dividing the cavity to define a grease-cell and a motivating-fluid cell, each cell volume variable by the movement of the movable biasing boundary within the cavity, a grease-port in the body for fluid communication with the grease-cell, and a motivating-fluid port in the body for fluid communication with the motivating-fluid-cell; (ii) a grease-circuit including: at least one grease-valve in fluid communication with the grease-port in the body and the access line in fluid communication with the separator and the retainer; and (iii) a motivating-fluid circuit including: at least one motivating-fluid-valve in fluid communication with the motivating-fluid port in the body and a motivating-fluid source.