Patent ID: 7938959

Claim:
A system for fryer oil usage comprising: at least one fryer having a vat and a drain, the drain having a valve means for opening and closing the drain; a first oil storage container having an oil delivery line in fluid communication with the vat of the fryer, said first oil storage container having an inert gas blanket in a vapor space of said first oil storage container; a second oil storage container having an inert gas blanket in a vapor space of said second oil storage container, said second oil storage container being in fluid communication with the valve means of the drain of the fryer, an inert gas supplying means for maintaining a constant pressure in said vapor space of said first oil storage container and in said vapor space of said second oil storage container, said inert gas supplying means in valved communication with said first and second oil storage containers; a first filtering means for filtering oil from the fryer, said first filtering means in fluid communication with said valve means of the drain of the fryer; a pumping means for filtering the oil passing from the fryer, said pumping means being in fluid communication with said first filtering means and said second oil storage container, said pumping means being in valved communication with the vat of the fryer, said pumping means for vacuuming oil from the fryer through said first filtering means; a polishing means for recycling oil through said first filtering means, said polishing means being in fluid communication with said pumping means and with said first filtering means; and a selecting means for selecting the direction of a flow of oil, said selecting means movable to a first position for blocking said flow of oil, a second position for allowing said flow of oil to said second oil storage container, and a third position for allowing said flow to the vat of the fryer, said selecting means being in fluid communication with said pumping means and with said polishing means and with said second oil storage container.