An isolated signal conditioning circuit is provided whereby control or measurement circuitry is isolated from a load, such as a control instrument, through the use of optical isolation and a switching relay. Optical isolation is utilized to isolate the input signal produced by the control or measurement circuitry, from the load. The switching relay isolates a feedback circuit utilized to insure that the signal supplied to the load is an accurate representation of the input signal produced by the...

An improvement in dynamo electric machines is disclosed in which the brush holder is electrically isolated from the brush pigtail terminal junction. The member which supports the junction connecting the brush pigtail and the lead from the stator includes an insulator which electrically isolates the junction from the brush holder. The insulator eliminates the relatively low impedance electrical path between the brush terminal and the commutator through the brush holder, preventing damaging arcing...

An isolated step on a tractor with means isolating the step from the vehicle chassis and for dampening vibrations of the step which is mounted on an isolated cab of the tractor.

A frame in which the body of a string instrument is supported, the frame having a main bar extending longitudinally in spaced relation to the back of the instrument body. The frame extends with end-pieces adapting to the ends of the said body, such end-pieces having clips applicable to the said ends by way of semi-hard inserts to dispose the body floatingly. One end-piece also extends with the neck and fret or string board of the instrument, while the other end-piece returns with a tail piece re...

An edible isolated soy protein composition characterized by free flowing characteristics, easy dispersibility in liquids and absence of objectionable taste. The composition is prepared by coating particles of the soy protein with particles of silicon dioxide and mixing the coated particles with ammoniated glycyrrhiza.

A dielectrically isolated semiconductor device can be manufactured. The structure is useable for integrated circuits, including field effect and/or bipolar transistors, wherein a significant savings in surface area and reduction in capacitances can be obtained over prior techniques. The method involves forming a layer of dielectric material upon a semiconductor body, having a diffused region where a bipolar device is to be formed, and then forming an opening in the layer to expose a part of the ...

An apparatus is provided for feeding components by vibration, halting the feed of the components at an unload station, and picking-up the components by an unloader at the unload station in which the pick-up head and the means for stopping the feed of components is isolated from the vibrations of the feeder so that a uniform, accurate pick-up of components by the unloader is facilitated.

A moisture sensing system for sensing the presence of moisture, with a molded yoke and opening which assures positive separation of electronic connections, with non-metalic conductors composed of electrically conductive plastic. Isolating resistors are provided so that the sensor strip may be safely used without fear of electrical shock from inadvertant feedback.

An isolated controller circuit responsive to an input signal voltage from the output of a low-pass filter referenced to an isolated reference potential; the controller circuit being characterized to provide a control signal at a signal output terminal referenced to a non-isolated reference potential. The isolated controller circuit comprises: a reference signal source referenced to the isolated reference potential for providing a reference signal and an amplifier and compensation means for ampli...

A circuit board or sheet of homogeneous material having one or more circuit elements adhering to a surface thereof, said sheet providing a low through resistance path between each circuit element and opposed and aligned contacts positioned in surface contact with the opposite side of the sheet while providing a high isolation resistance between out of alignment contacts positioned on the opposite side of the sheet and between contacts positioned on the same side of the sheet positioned an isolat...