Abstract: A method of processing contaminated soil whereby the soil in the form of feed stock is heated in a combustion chamber of a processor with the hydrocarbons being evacuated to a condensing system resulting in a petroleum product while the soil feed stock is detoxified in an afterburner to form clean soil for general use.

Abstract: A dowel fastening support device for insertion into a bored hole of a structural element having a support member outside the bored opening and an elongated shank having pivotable triangular-shaped gripping members for insertion in said bored hole, said gripping members being so configured that the forward edge of each member is spaced from the adjacent interior surface of said bored hole, and the device is provided with a pointed element at the end of the shank remote from the support end portion for automatically centering the dowel device, when the latter is inserted in said bored opening.

Abstract: An indirect heating apparatus placement under floor or wall surfaces in which the heat is generated in one direction into the room to be heated and includes simplified insulation elements having clamping type connections which are removably attached to the heating coils, and can be adapted for unlimited varieties of room shapes and sizes. The heating coil is surrounded by high insulating material except for the surface facing the room to be heated. Consequently, indirect radiant heat can be projected in essentially one direction.