Abstract: Tonneau cover for placement on a pick-up truck bed, said tonneau cover being made of an energy recoverable foam capable of withstanding the torsional and rotational torque subjected to the truck bed during strenuous off-road conditions without the cover popping off or coming undone at any corner. Further in order to achieve this withstanding of torque and other forces, the cover is attached to the front of the truck bed by at least one hinge which is holding the cover onto the truck by its own independent suspension. This causes a “floating” effect of the cover on top of the truck bed while the truck is; being put to the test on off-road conditions, and allowing the cover to twist and turn during off-road operation. The top surface of the tonneau cover may have a smooth surface, while the underside may be textured like a snakeskin for crumbling upon a rear end collision. Use of the tonneau cover of the present invention results in a significant gas mileage increase.

Abstract: A method and apparatus for preventing the discharge of gasoline dispensing station hydrocarbon vapors into the atmosphere comprising an incinerator which is utilized to burn a mixture of the hydrocarbon vapors and air supplied by an air compressor. Control means are provided to insure that the velocity of the hydrocarbon vapors supplied to the incinerator is at least 10 feet per second and the pressure of the air entering the incinerator is at least 3 inches of water above atmospheric pressure.

Abstract: A method and apparatus for recovering vapors from at least one receiving tank into which a volatile liquid is introduced consisting of conduit means for conveying vapors from the tank, refrigeration means, pumping means connected to the conduit means for conveying vapors from the tank and having an outlet connected to the refrigeration means, a vapor recirculation conduit from the refrigeration means outlet to the pumping means inlet, a liquid drain conduit from the refrigeration means, at least one canister containing filtering media and having an inlet and outlet, the canister inlet being connected to the recirculation conduit, the canister outlet being in communication with the atmosphere, the canister being further provided with inlet valving and outlet valving allowing for the isolation of the canister inlet from the recirculation conduit and the outlet to the atmosphere, and a vacuum means having an inlet in communication with the canister and having an outlet in communication with the refrigeration mea