Patent ID: 7044340

Claim:
An apparatus for mixing and injecting or applying a two or more part epoxy comprising: two or more holding tanks each holding a an epoxy resin or an epoxy hardener component and having an exiting port and one or more cavities having a heat transferring liquid and one or more heating elements with said liquid, said heating elements capable of uniformly heating said resin or hardener to a temperature whereby viscosity is reduced yet said temperature is below a self hardening temperature; and two or more synchronously and variable ratio coupled pumps each having an intake port capable of suction feeding said resin or hardener and a discharge port and capable of positive pumping said resin or hardener through said discharge port on both an extension and a reflex stroke, each intake port connected with one of said holding tank exiting ports; and one or more hydraulic drive cylinders having a controlled hydraulic pressure connected with a first side of a hinged plate said hinged plate having a second side connected with said pumps and a hinge axis between said first and second side; and a dispensing and mixing head having two or more valves connected separately with said discharge ports whereby said components enter said dispensing and mixing head via the action of said pumps upon actuation of said dispensing and mixing head and are mixed and exit said dispensing and mixing head at an open end as a viscous blend; and one or more recirculating valves each connected with a fitting between said head and said discharge port and further connected with one or more of said holding tanks whereby when said recirculating valve is open recirculation into said holding tanks occurs and when said recirculating valve is closed, said dispensing or mixing head is pressurized and ready for use.