Abstract: A portable power system for handheld battery-powered device comprises a power source containing a universal, non OEM battery, a power cord connected to the power source forming an electrical connection, and a battery connection adaptor, connected to the power cord, configured to be electrically connected to the handheld battery powered device, permitting users to replace the original equipment battery with a universal battery that can accommodate any similar voltage DC powered handheld device from any manufacturer.

Abstract: A portable power system for handheld battery-powered device comprises a power source containing a universal, non OEM battery, a power cord connected to the power source forming an electrical connection, and a battery connection adaptor, connected to the power cord, configured to be electrically connected to the handheld battery powered device, permitting users to replace the original equipment battery with a universal battery that can accommodate any similar voltage DC powered handheld device from any manufacturer.

Abstract: Method and apparatus for simulating operating conditions on a motor operated valve. The present invention provides a means for simulating actual operating load conditions, such as a simulated accident condition, for valves. An axial force is placed on the valve stem by a hydraulically operating loading system to simulate loading conditions associated with a postulated accident, and the valve operator is actuated. The response of the valve during the simulated loading condition is monitored to ensure that the valve is capable of operating, such as to close or open, in the event of an unusual condition.

Abstract: A sensitive to a change in the physical dimension(s) of the exterior surface of a pressure vessel transducer and attached to the exterior surface thereof the pressure vessel may be a vacuum chamber. The transducer measures exterior dimension change, representing interior pressure change information, without intrusion. The measurements are displayed using distinctive lights or audible alarms which signal if the pressure inside the vessel is within a predetermined range. If the pressure within the vessel varies outside of the predetermined range, a more precise display device such as a meter, is provided to aid facility personnel in deciding when repairs are necessary.

Abstract: The axial force on the valve stem of a large valve can be related to the output of a strain sensor mounted on the yoke of the valve, but accuracy can be achieved only if the strain sensor is first calibrated by applying a known axial force to the valve stem. This can be done conveniently by using the invention, which includes two loading beams juxtaposed on opposite sides of the valve stem, elongated in a direction perpendicular to the valve stem, and including a split nut or a collet for gripping the valve stem. Legs extend from the ends of the loading beam assembly parallel to the valve stem, and one or both of these legs includes a hydraulic ram for applying force to one or both ends of the loading beam assembly. This applied force can be measured independently of the yoke-mounted strain sensor.

Abstract: The axial force on the valve stem of a large valve can be related to the output of a strain sensor mounted on the yoke of the valve, but accuracy can be achieved only if the strain sensor is first calibrated by applying a known axial force to the valve stem. This can be done conveniently by using the invention, which includes two loading beams juxtaposed on opposite sides fo the valve stem, elongated in a direction perpendicular to the valve stem, and including a split nut or a collet for gripping the valve stem. Legs extend from the ends of the loading beam assembly parallel to the valve stem, and one or both of these legs includes a hydraulic ram for applying force to one or both ends of the loading beam assembly. This applied force can be measured independently of the yoke-mounted strain sensor.