Abstract: A surge brake is described for application to a fuel pump for an internal combustion engine in which an elongated throttle rod is moved axially to control flow of fuel from the pump to the engine. The brake is mounted adjacent an end of the throttle rod and includes a plunger that is adapted to axially engage the throttle rod end. The plunger is spring loaded and positioned by adjustment provisions to produce a selected yieldable resistance to movement of the throttle or rod toward an open condition. Free axial motion of the throttle rod that produces "surging" of the engine is thereby effectively eliminated.

Abstract: For use in a solar heating system in which is employed a source of a heatable fluid, a solar heating panel made of spaced corrugated metal sheets which form an envelope which is fed by tubes attached to the top and which is drained by tubes at the base. The envelope may alternatively be made up of flattened tubes which would compartmentalize the envelope. The envelope is coated with Teflon to improve heat retention and reduce heat loss.

Abstract: A solar heating system is provided in which is employed a source of a heatable fluid and an arrangement of solar heating panels to receive heat from the sun and heat the fluid therewith. A heat sink is provided to receive the fluid from the solar panels and to store heat received with the fluid. A heat transfer arrangement transfers heat from the heat sink to a heating system medium. The heat sink includes a tank which is connected in a closed loop with the solar heating panels to receive heatablefluid from the panels. Aggregate is provided in the tank to store heat received via the heatable fluid. The heat transfer arrangement includes a duct for the passage of air and rocks arranged in the duct for storing heat received from the tank. In one construction, the panels each comprise an array of tubes of a heat conductive material and a heatable mass in which the array is located and heated in order to heat fluid flowing through the tubes.