Philip Herrold Emmert, Age 7836845 Briarcliff Rd, Sterling Heights, MI 48312

4265208, May 5, 1981

May 16, 1979

6/039330

Philip H. Emmert - Sterling Heights MI
Richard A. Stevens - Union Lake MI
Glenn A. Walkush - Flint MI

General Motors Corporation - Detroit MI

F02M 700

123440

A closed loop air-fuel ratio controller adjusts the air and fuel ratio of the mixture supplied by a carburetor to an internal combustion engine to a predetermined ratio in response to sensed exhaust gas oxidizing-reducing conditions. An air valve is energized to bleed air into the air-fuel mixture upstream of the exhaust gas sensor and independent of the mixture supplied by the carburetor when the carburetor idle fuel system is functioning and the magnitude of the adjustment in the mixture leaning direction reaches a predetermined value in response to a sensed rich air-fuel ratio to effect a decrease in the amount of the adjustment in the lean direction. The air bleed effectively increases the lean adjustment authority of the air-fuel ratio controller and avoids a lean air-fuel ratio excursion as the carburetor operation shifts from its idle fuel circuit to its main fuel metering circuit during cold engine operation.

2020029, Sep 17, 2020

Mar 12, 2019

16/299638

Philip Herrold Emmert - Sterling Heights MI, US

B25H 1/14
B25H 1/04

An adjustable wood work bench device (the device) includes a top portion presenting a pair of track parts connected by a connecting element. A pair of jaws wherein the jaw is stationary, and the other jaw is movable from the jaw to the connecting element along the tracks defined in the track parts. Each jaw presents a generally rectangular plate like configuration and define a plurality of holes each of which slidingly accepts a swivelable clamping peg (not shown) to increase the versatility of the device. The connecting member includes elements to secure the device to the tailgate of the truck, or to the standing bench.