Back to results
US 4,536,256 AGranted
Solvent recovery apparatus
AssigneeRecyclene Products, Inc.
InventorManuel G. Pastor
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
AssigneeRecyclene Products, Inc.
InventorManuel G. Pastor
Estimating the term…
A solvent recovery apparatus including a housing having an open top tank therewithin for receiving a flexible bag. A bag holder member is removably mounted within the bag, and the holder member shapes the bag to hold it in an open condition for receiving dirty solvent directed into the tank. The holder member urges the upper edge of the bag against the inner surface of the tank so that substantially no solvent can migrate into the space between the bag and the tank. The tank has a space for receiving heating oil below a bottom thereof so that heat can be imparted to the contents of the bag to evaporate the solvent therewithin. Baffle structure in the oil causes the oil to circulate as the oil is heated by a resistance heater in the space. A quench coil below the bottom of the tank and above the oil receives a coolant for heating the liquid and solid contaminants left in the bag after evaporation of the solvent to minimize the delay in waiting for the contaminants to cool before removing the bag from the tank. A reservoir adjacent to the tank receives clean solvent in liquid form and has a cooling coil therewithin to inhibit any tendency for the solvent to evaporate in the reservoir.
In a solvent recovery apparatus having means for providing a distilling mode and means for providing an emptying mode, including a tank, means for heating the interior of said tank, a plastic bag for placement within said tank interior such that the bag is designed, positioned and dimensioned for forming a substantially liquid tight barrier between contaminated solvent within said bag and said means for heating during said distilling mode and for enabling easy removal and disposal of said plastic bag with quantities of residue remaining in the bag from evaporation of said contaminated solvent during said emptying mode, the combination with said tank of:
In a solvent recovery apparatus having means providing a distillation mode and means for providing an emptying mode including a tank, means for heating the interior of the tank, a plastic bag for mounting within the interior of the tank such that the bag is designed, positioned and dimensioned for forming a substantially liquid-tight barrier between contaminated solvent within the bag and said heating means during the distillation mode and for enabling easy disposal of residue in the plastic bag during the emptying mode, the combination with said tank of:
In apparatus as set forth in claim 35, wherein said sheet is of a heat resistant material selected from the group including Teflon and nylon.
Dependencies are inferred from the claim text.