Abstract: Embodiments of a directional valve assembly that provides a single device with functionality of a two-position design for automated operation and functionality of a three-position design for manual operation. The embodiments can include a housing with a piston chamber and a spool member that transits in the housing to regulate the flow of a working fluid to a cylinder. The embodiments can also have one or more pilot operators that regulate the flow of pilot air into the piston chamber to move the spool member between two positions, i.e., two open positions. The embodiments can also have a manual operator (e.g., a lever) that can move the spool to the open positions and to a closed position. In one embodiment, the spool member is configured to remain in either a first position, a second position, or a third position in the absence of an outside stimulus on the pilot operators.

Abstract: Embodiments of a directional valve assembly that provides a single device with functionality of a two-position design for automated operation and functionality of a three-position design for manual operation. The embodiments can include a housing with a piston chamber and a spool member that transits in the housing to regulate the flow of a working fluid to a cylinder. The embodiments can also have one or more pilot operators that regulate the flow of pilot air into the piston chamber to move the spool member between two positions, i.e., two open positions. The embodiments can also have a manual operator (e.g., a lever) that can move the spool to the open positions and to a closed position. In one embodiment, the spool member is configured to remain in either a first position, a second position, or a third position in the absence of an outside stimulus on the pilot operators.

Abstract: In one embodiment, an apparatus includes a monolithically formed thermal conducting body that includes a passageway that extends from a first end to a second end of the body. At least one of the first end or the second end of the body is configured to couple the body to a tubular member. The body also defines a substantially non-circular outer perimeter, and at least a portion of the passageway of the body defines a substantially circular cross-section. The passageway of the body is configured to receive fluid there through, and the body has a substantially planar outer surface that is configured to be placed in contact with a heat generating component. In some embodiments, the body can be coupled to a plate. In some embodiments, an apparatus can include more than one such thermal conducting body.

Abstract: In one embodiment, an apparatus includes a monolithically formed thermal conducting body that includes a passageway that extends from a first end to a second end of the body. At least one of the first end or the second end of the body is configured to couple the body to a tubular member. The body also defines a substantially non-circular outer perimeter, and at least a portion of the passageway of the body defines a substantially circular cross-section. The passageway of the body is configured to receive fluid there through, and the body has a substantially planar outer surface that is configured to be placed in contact with a heat generating component. In some embodiments, the body can be coupled to a plate. In some embodiments, an apparatus can include more than one such thermal conducting body.

Abstract: The present invention relates to improved coatings for electrical or electronic connectors such as contacts or terminals used in automotive applications. Coatings in accordance with the present invention preferably comprise binary tin-silver coatings consisting of more than 1.0 wt % to about 20 wt %, preferably from 2.0 wt % to 15 wt %, and most preferably from 3.0 wt % to 10 wt %, silver and the balance essentially tin. The coating is preferably applied by immersing the substrate material in a molten tin-silver bath.

Abstract: Method for support control in machine tools where it is controlled whether an object is arranged correctly on a support surface in the machine tool, where a duct system is used which ends in the support surface, and conducts a medium, and can be pressurized, the final opening of the duct system is covered by the object, and in the duct system the pressure of the medium is reduced at a choke point, the differential pressure is determined before and after the choke point, and is evaluated for support control.

Abstract: Method and device for support control in machine tools where it is controlled whether an object is arranged correctly on a support surface in the machine tool, where a duct system is used which ends in the support surface, and conducts a medium, and can be pressurised, the final opening of the duct system is covered by the object, and in the duct system the pressure of the medium is reduced at a choke point, the differential pressure is determined before and after the choke point, and is evaluated for support control.

Abstract: The present invention relates to improved coatings for electrical or electronic connectors such as contacts or terminals used in automotive applications. Coatings in accordance with the present invention preferably comprise binary tin-silver coatings consisting of more than 1.0 wt % to about 20 wt %, preferably from 2.0 wt % to 15 wt %, and most preferably from 3.0 wt % to 10 wt %, silver and the balance essentially tin. The coating is preferably applied by immersing the substrate material in a molten tin-silver bath.

Abstract: A control system for regulating exhaust gas pressure in a furnace smokestack by means of three power cylinder actuated butterfly valves in the smokestack opening. An electronic control circuit provides digital output signals, which operate spool valve devices via which a hydraulic fluid circuit is established to control the power cylinders. In a trim mode control circuit, a first comparator senses a difference between the actual stack pressure and a desired pressure. The comparator output is converted by an analog to digital section to provide the digital output signals for control of a single butterfly valve. A rangefinder mode control circuit includes a second comparator that senses an output from the first comparator in excess of a predetermined value.

Abstract: An electronic balance control circuit includes an OP-AMP comparator circuit for receiving a command signal and a feedback signal. A positive OP-AMP detector circuit for causing a first buffer trigger circuit to fire a first triac to energize a first output when the command signal is less than the feedback signal, and a negative OP-AMP detector for causing a second buffer trigger circuit to fire a second triac to energize a second output when the command signal is greater than the feedback signal.