Abstract: A cable system including device connectors connected to electropneumatic valves and electrical sensors at predetermined positions along a path on a common manifold and a wiring harness having a length sufficient to transverse the path. The wiring harness includes a plurality of insulated wires in a common sheath and selectively connected to harness connectors which are mounted at predetermined positions to the harness and mate with a corresponding device connector. The path is a closed loop and the wiring harness forms a corresponding closed loop. The majority of the wires in the wiring harness form the corresponding close loop.

Abstract: A modular locomotive brake control unit having a manifold with electropneumatic modules each including electropneumatic and pneumatic elements removably mounted thereon each as a unit from the manifold. An electropneumatic equalization reservoir module controls the pressure at the equalization port. A brake pipe module controls brake pipe port pressure in response to the equalization reservoir port. An electropneumatic independent brake module controls pressure at the independent brake port as a locomotive brake signal. An electropneumatic brake signal module provides a pneumatic train brake signal. A controller controls the electropneumatic modules. Each electropneumatic unit includes an electropneumatic supply valve and an electropneumatic exhaust valve and preferably an electropneumatic valve having a first input connected to the supply and exhaust valves.

Abstract: A modular locomotive brake control unit according to the present invention includes a manifold having mounted thereon at least two of a brake pipe module, a brake cylinder module, a brake signal module, equalization reservoir module, independent brake module, and an actuating module. Each of the modules includes a module controller in a network with a unit controller and an electric brake valve. The modules and brake valve controllers include an identification and software identification which is monitored by the unit controller. The module controllers also include an event log. The unit controller provides commands and software to an receives data from the module controllers.

Abstract: A modular locomotive brake control unit having a manifold with electropneumatic modules each including electropneumatic and pneumatic elements removably mounted thereon each as a unit from the manifold. An electropneumatic equalization reservoir module controls the pressure at the equalization port. A brake pipe module controls brake pipe port pressure in response to the equalization reservoir port. An electropneumatic independent brake module controls pressure at the independent brake port as a locomotive brake signal. An electropneumatic brake signal module provides a pneumatic train brake signal. A controller controls the electropneumatic modules. Each electropneumatic unit includes an electropneumatic supply valve and an electropneumatic exhaust valve and preferably an electropneumatic valve having a first input connected to the supply and exhaust valves.

Abstract: A microprocessor based self-cleaning oven temperature control system and method includes a plurality of preprogrammed look-up temperature tables stored in a read only memory (ROM) portion of the memory of the microprocessor. One of the tables is selected for use as a reference table; and the values therefrom are transferred to a random access memory (RAM) portion of the memory of the microprocessor. Upon each application of power to the oven, the microprocessor, during an initiation subroutine, determines from a digital input signal the type of oven that is present. The oven type input signal to the microprocessor may designate a nominal or factory calibrated oven or an oven that has been recalibrated during a field service call to operate at bake temperatures offset from nominal bake temperatures.

Abstract: A self-cleaning oven includes an oven temperature control system that adjusts a nominal clean temperature by a fixed amount in response to any recalibration of the oven's bake temperature. The bake temperatures are recalibrated by selecting one of a plurality of offset values and the polarity of the offset value. The control system in the clean mode is responsive to any recalibration of the bake temperatures to increase the nominal clean temperature by a fixed amount if the polarity of the bake temperature offset is positive and to decrease the nominal clean temperature by a fixed amount if the polarity of the bake temperature offset is negative.

Abstract: A keyboard switch assembly includes a thin, flexible, glass top layer forming a membrane. Disposed on an inner surface of the glass membrane is a first conductive layer forming an electrode. Disposed beneath the first conductive layer is an insulating layer or spacer having an aperture therein that defines a switch contact area. Beneath the spacer a rigid portion of the keyboard switch assembly is provided. The rigid portion of the keyboard switch assembly includes a rigid substrate with a conductive coating formed thereon to provide a second conductive layer or electrode disposed beneath the spacer. A flexible polymer layer may further be disposed between the rigid substrate and the second conductive layer to reduce point contact degradation in the keyboard switch assembly. Decorative paint layers may be formed on the inner surface of the glass membrane between the glass membrane and the first conductive layer.

Abstract: A nominal closed-loop temperature control system and method for a self-cleaning oven is adapted, upon recalibration of the bake temperature of the oven, to operate in an open-loop manner during the CLEAN mode of operation of the oven, Specifically, prior to recalibration of the oven, an average value of the duty cycle of the oven heating elements used during a self-cleaning operation is measured and stored. Subsequently, upon a positive recalibration or increase in the nominal values of the bake temperatures of the oven, the duty cycle of the heating elements during a self-cleaning operation is slightly increased to increase the average value of the self-cleaning temperature of the oven. Correspondingly, upon a negative recalibration or decrease in the nominal values of the bake temperatures, the duty cycle of the heating elements during a self-cleaning operation is slightly decreased to decrease the average value of the self-cleaning temperature of the oven.