Tomco

Michael J Wolfe

Robert F Killion

In an oxygen sensing unit, an oxygen sensing cell with a closed outer end is encircled by a side wall of a protective shell or shield, and recessed from an open mouth of the shell. The cell and shell are mounted in a plug made up of a closure cap with an externally threaded section and a plug body with an internally threaded section complementary to the externally threaded section of the closure cap, the two parts of the plug cooperating to hold and compress the shell and cell, mediately or immediately, and permit the removal and replacement of the cell.

Oxygen sensing unit

An exhaust gas recirculation (EGR) valve for controlling the amount of exhaust entering the intake manifold of an internal combustion engine. The EGR valve comprises a universal base so that a single base may fit many makes and models of vehicles, a diaphragm valve having two ports facing opposite directions protruding from the top of said valve, making connection of a vacuum hose to the EGR valve easier, and a back pressure transducer wherein the transducer has means to alter the vacuum required to close the valve.

Exhaust gas recirculation valve

A preassembled carburetor valve of the general type shown and described in U.S. Pat. No. 3,454,036 has a floating disc-type valve without an encircling metal rim. The hollow body is provided with oppositely disposed 'cathedral window' openings. The valve body, including the valve seat and the cathedral windows, is die cast.

Growing community of inventors

Villa Ridge, MO, United States of America

Michael J Wolfe