Abstract: Implantable medical systems enter an exposure mode of operation, either manually via a down linked programming instruction or by automatic detection by the implantable system of exposure to a magnetic disturbance. A controller then determines the appropriate exposure mode by considering various pieces of information including the device type including whether the device has defibrillation capability, pre-exposure mode of therapy including which chambers have been paced, and pre-exposure cardiac activity that is either intrinsic or paced rates. Additional considerations may include determining whether a sensed rate during the exposure mode is physiologic or artificially produced by the magnetic disturbance. When the sensed rate is physiologic, then the controller uses the sensed rate to trigger pacing and otherwise uses asynchronous pacing at a fixed rate.

Abstract: A fuel tank mountable to a machine with an engine includes a body with at least one wall and at least a first boss integrally formed with the one wall and extending outwardly therefrom, the at least a first boss having an exterior surface configured for mating, locking attachment to a ratainer; a bracket having first and second sides and being connectable to one of the machine and the engine, the bracket having a hole sized to receive a boss therethrough with the body adjacent the first side of the bracket; and, a retainer sized and configured for mating, locking attachment to the at least a first boss adjacent the second side of the bracket.

Abstract: The present invention is directed toward a method for removing copper from solutions containing arsenic and antimony and in which the copper concentration in the solution is sufficiently low whereby arsine and stibine would normally be generated if the solution was subject to electrolysis. According to the practice of the present invention, copper is recovered from such solutions by contacting said solutions with a fuel fed catalytic porous structure whereby the copper is deposited on said structure without the reduction of the arsenic and antimony in said copper-containing solution to arsine and stibine.

Abstract: A flow control valve assembly is connected to the cylinder head of a gas engine for providing an intermittent flow of gaseous fuel in timed relationship to the combustion chamber thereof. A valve cage is removably affixed to the cylinder head, and removably receives a valve cartridge in a telescoping manner therewithin. The valve cartridge cooperates with the valve cage in a manner whereby gaseous fuel flows into the cage, through ports formed in the cartridge, and from the interior of the cartridge into the combustion chamber of the gas engine. The valve cartridge includes a main outer housing which is easily separable into two members. A special seal assembly is received in captured relationship between a valve stem and the two separable members. The unique arrangement of the various components of the cartridge enables the device to be overhauled in a simple and straight forward manner.