Abstract: The disclosed bearing mount includes a bearing with inner and outer raceways and rollers operating between the raceways, the raceways being fixedly held fast relative to separated structures and the rollers rotatably supporting them and the structures relative to one another. The rollers of the bearing are formed of electrically and magnetically nonconductive material, specifically comprised of silicon nitride material. This bearing mount is effective for operation within a pulsed high energy electrical circuit or within the magnetic fields generated thereby, as in an inner roller electrode or an hour glass roll used in an electric-resistance can welder, inasmush as it isolates the structures electrically from one another via the bearing mount independently of other insulator devices, while operating without magnetic roller polarization and increased roller collisions.

Abstract: A roller electrode combination for use in electric-resistance welders, the electrode having relatively rotatable components separated by very small gaps, and an electrically and thermally conductive liquid is contained by the components across the gaps; the conductive liquid being a gallium dominant composite eutectic mixture where its phase change from liquid to solid begins at possibly 5-8 degrees C. Special controls are provided for the coolant for the roller electrodes, including a sensor to determining its temperature and a heater to preclude its flow through the roller electrode at temperatures below where such phase change might take place. The roller electrodes may be formed of alloys of copper (Cu) and/or a sintered mixture of copper (Cu) and tungsten (W). A protective coating between 0.0025 and 0.025 millimeters thick may be plated on surfaces of the composite copper (Cu) and tungsten (W) roller electrode that come in contact with the conductive liquid.

Abstract: An improved roller electrode combination for use in electric-resistance welders, the electrode having relatively rotatable components separated by very small gaps, and a liquid contained by the components across the gaps; where said liquid is nontoxic, and is highly conductive, both electrically and thermally. The conductive liquid is of a composite eutectic mixture of galliun (Ga), indium (In), tin (Sn) and zinc (Zn), by weight, being approximately 61% Ga, 25% In, 13% Sn, and 1% Zn. A protective coating of the order between 0.0025 and 0.025 millimeters thick is plated on said surfaces of at least one of the components, being of material from gold and/or the platinum family, such as rhodium (Rh). Coolant is circulated through one of the components, and special controls regulate the coolant flow and/or warn of unsafe coolant temperatures; and the conductive liquid thermally cools the other component. The rotor component may be formed of a sintered mixture of copper (Cu) and tungsten (W).

Abstract: A roller electrode combination for use in electric-resistance welder, the electrode having relatively rotatable components separated by very small gaps, and a liquid contained by the components across the gaps; where said liquid is nontoxic, and is highly conductive, both electrically and thermally. The conductive liquid is of a composite eutectic mixture of gallium (Ga), indium (In), tin (Sn) and zinc (Zn), by weight, being approximately 61% Ga, 25% In, 13% Sn, and 1% Zn. A protective coating of the order between 0.0025 and 0.025 millimeters thick is plated on said surfaces of at least one of the components, being of material from the platinum family, such as rhodium (Rh). Coolant is circulated through one of the components; and part of the component is formed of a composite mixture of copper (Cu) and tungsten (W).

Abstract: This invention relates to an electro mechanical-electronic device designed to prevent nosocomical contagions spread by the hands of health care personnel and others due to improper and incomplete hand washing. The device establishes a time reference for the personnel to insure the proper time standards of washing and rinsing hands are attained. Further, the automatic dispensing of a proper quantity of non-contaminated skin degermer and the replacement of natural emolients removed during the washing process is accomplished.