Abstract: A dummy instrument for use in a simulator, the instrument comprising a control body (101) with user manipulatable angulation control (105), an insertion tube (102) and an umbilical (103) extending from the control body. In a real instrument corresponding to the one being simulated, at least one angulation cable would extend from the user manipulatable controls to the tip of the insertion tube such that movement of the angulation control changes the angulation of the tip. In the dummy medical instrument the angulation cable extends from the user manipulatable angulation control, and down the umbilical. The umbilical is releasably attached to a main unit (105). A motor (20,21) within the instrument at the distal end of the umbilical to applies a variable force to the cable. A position detector (30,31) within the instrument detects the angular position of the angulation control.

Abstract: A method of operating an internal combustion engine. With reference to FIG. 1, fuel is supplied to charge air using an injector (116) which in each operation delivers a set amount of fuel. The amount of fuel supplied to the charge air in each engine cycle is controlled by how many times the injector (116) operates in each cycle. A desired fuel demand is calculated as a number of operations of the injector per cycle, calculated to at least one decimal place. The desired fuel demand is rounded to a near integer to provide an output fuel demand for the injector as a number of operations of the injector for the next operating cycle in varying operating conditions of the engine. The controller calculates an aggregate number of operations for a plurality of engine cycles which is closer to an aggregated desired fuel demand for the plurality of cycles than if for each cycle of the plurality of output cycles the output fuel demand is calculated independently.

Abstract: An improved gas tube system for a firearm having a gas tube with a distal end that is selectively openable to permit access to the distal end of the gas tube for cleaning thereof.

Abstract: A gas operated firearm having a gas venting system which configures the carrier key and the gas tube so that a substantial portion of the recoil gas is vented from the gas tube into the cavity defined by a hand guard to reduce fouling and high temperatures associated with conventional venting systems which route gases into the receiver.

Abstract: A foot support having straps which receive the calcaneous and wrap around the midfoot in a tensioned state for stabilizing the rearfoot and the midfoot to avoid excessive inversion and eversion of the foot.

Abstract: A target system having a base, a stationary member inclined from the base and having a cap, a rotating tube having a cap and positioned over the stationary tube, a bearing between the caps of the stationary member and the rotating tube to permit substantially free rotation of the rotating tube, and a plurality of target sides secured to the rotating tube, with impact of a fired round onto one of the target sides initiating movement of the rotating tube relative to the stationary member.

Abstract: A knife and sheath for housing the knife, the sheath including a light, an actuator for activating the light, and finger openings, with the knife being withdrawn from the sheath to permit the fingers of the user to be inserted through the finger receiving openings and enable a thumb of the user to be positioned on the actuator for selective activation and de-activation of the light emitting device.

Abstract: A cutting tool including a housing provided with a compartment having an opening, a carrier disposed in the compartment and displaceable between extended and retracted positions, a spring for biasing the carrier in the retracted position, a mechanism for displacing the carrier in the extended position, a mechanism for releasably retaining the carrier in the extended position, and the carrier having a nesting surface for a blade whereby a blade nested thereon will project through the compartment opening when the carrier is in the extended position and will be disposed within such compartment when the carrier is in the retracted position.

Abstract: A computer assisted system and related method for interacting with an audience by combining questions from a group of questioners, analyzing the questions, and presenting the questions in summary form for answering by a speaker or interviewee. The answers are then delivered to the questioners. The entire interview may be delivered to the questioners, or portions may be selectively delivered to separate questioners based on questions asked by the respective questioner. In one embodiment, questions may be grouped by similar subject matter; groups may be arranged by the number of associated questions or by other priority criteria. In a further embodiment, a representative question may be generated for each group. The representative question may be selected from the group or may be generated from analysis results. In one embodiment, a subscriber based service is provided. Profiles may be developed for the questioners, and targeted advertising may be delivered based on the profiles.

Abstract: A centrifugal bowl separator, including a bowl, a source of pressurized gas in selective flow communication with the bowl and operable to selectively supply pressurized gas to an interior portion of the bowl, and first and second pressure seals selectively established to provide a zone within a portion of the bowl such that when the pressurized gas is introduced, pressure within the portion of the bowl increases for enhanced removal of moisture and drying of solids within the portion of the bowl.

Abstract: A dynamic spinal stabilization system that enables spinal movements throughout a range of motions from a neutral condition of the spine, to a flexion condition, and an extension condition. The system includes metal pedicle screws and at least one metal support rod, wherein the system includes elastomeric members operatively located to substantially eliminate metal-to-metal contact of metal components of the system that are movable relative to one another.