Abstract: A device for detecting the position of a human finger or other object on a touch-sensitive scrolling pad. Dual independent oscillators may be used to generate two pulse trains at frequencies dependent upon the capacitance of two conductors resulting from the position of the finger on the conductors. The pulses from each oscillator may be counted over a time interval. A ratio-metric measurement may be taken by calculating the ratio of the two counts, and a sum may also be calculated. The ratio of the two counts relates to finger position on the device, and their sum relates to finger pressure upon the device.

Abstract: Disclosed is a universal connector for connecting component devices of an implantable medical treatment system. The universal connector includes a male and a female interface adapted to connectively mate two devices of the implantable medical treatment system. A locking flange and recess are provided, as well as a locking shoulder and ridge combination, to securely connect the mated male and female interfaces. When mated and securely joined, the universal connector of the present invention allows a device of the implantable medical treatment system to interface with any other device of the implantable medical treatment system for simplified handling and bi-directional communications.

Abstract: A multi-stroke air cylinder providing a precisely directed and controlled stroke in the face of lateral, torsional and tilting loads on a tooling plate. The multi-stroke cylinder utilizes a plurality of mechanically linked pneumatic or hydraulic pistons having different stroke lengths that can be added together in any combination, allowing the user to select any stroke length up to a predetermined, total combined stroke length, in increments equal to the stroke length of the smallest cylinder. The multi-stroke cylinder includes a head assembly having a fluid inlet for introducing fluid to the cylinder at a first pressure. The cylinder also includes a first positioning system having a plurality of pistons capable of moving a piston rod away from the first positioning system, and a second positioning system located between the head assembly and the first positioning system.