Abstract: The trap (42, 82) is based around a spring mechanism (24, 60) comprising a substantially rectangular sheet of spring material folded to be substantially C-shaped in cross-section. In one embodiment (FIG. 6), portions (64, 65) of the spring mechanism (60) are adapted to be killing surfaces. In another embodiment (FIG. 2), the spring mechanism (24) is provided with arms (28, 29) that support jaws (36, 37). A setting mechanism (53/54, 77) holds the spring mechanism (24, 60) in an armed position and the trap (42, 82) is triggered when a trigger mechanism (49, 75) is moved by an animal which in turn disengages the setting mechanism (53/54, 77) and allows the killing surfaces (portions 64, 65) or jaws (36, 37) to come together on the animal therebetween.

Abstract: The stratified two cycle engine comprises: a cylinder having an upper end and a lower end, a head at the upper end and fuel and air intake ports at the lower end; at least one spark plug mounted in the head; a sleeve in the cylinder having an upper end and a lower end and the cylinder having exhaust ports at the upper end which are covered and uncovered by the upper end of the sleeve; a piston in the sleeve and connected to a crank shaft; a first exhaust manifold at one side of the cylinder at the upper end thereof adjacent one exhaust port in the cylinder and having first exhaust gas throttle valve means associated therewith; at least a first and a second fuel and air intake manifolds at one side of the cylinder and at the other side of the cylinder in communication with first and second fuel and air intake ports in the cylinder; throttle valve means in each intake manifold; a reed cage assembly in each intake manifold adjacent the associated intake port for injecting a fuel and air mixture into the cylinder

Abstract: The method and system for managing power supplied from a charging circuit to a power source in an implantable medical device comprises the steps of and circuitry for: measuring the current drain of the medical device; measuring the elapsed time since the last full charge of a power source of the device; calculating the actual capacity of the power source (corrected for fade) based on the variable of current drain and the variable of elapsed time; calculating the operating time based on the variable of current drain and the variable of the actual capacity of the power source; measuring the voltage of the power source; signaling the medical device when the power source voltage has reached a certain low value which requires disconnection from the power source; disconnecting, during discharging, the power source from the medical device upon the power source reaching a certain low voltage in order to prevent deep discharging of the power source and subsequent damage; precisely limiting the charging voltage to the

Abstract: The chuck assembly comprises: a chuck body having an outer end portion, an outer periphery and a central axial bore extending at least part way therethrough; a nose collar mounted on the outer end portion of the chuck body; structure for mounting the chuck body onto the outer end of a shaft of a powered drive mechanism; the outer end portion of the chuck body having at least one radially extending bore therein which extends from the outer periphery of the chuck body inwardly to an opening which opens to the central bore and which has a diameter less than the diameter of the radial bore; at least one ball or detent in the at least one radial bore; urging mechanism for urging the ball or detent into the radial bore and part way through the opening; releasing mechanism for allowing the ball or detent to move radially outwardly in the radial bore and away from the opening; and structure in the central bore for engaging a tool shank and preventing rotation of the tool shank relative to the chuck body.

Abstract: Method and circuit for deciding whether or not a pulse in a data stream is or is not a valid pulse of the data stream, wherein a free-running local clock at N-times the data rate is generated and clock pulses thereof are counted once the data stream signal reaches and remains above a slicing threshold. Once a predetermined minimum number of counted clock pulses is attained a valid data pulse signal is issued.

Abstract: A guiding catheter introducer assembly that includes a catheter introducer sheath, with a hemostasis valve, attached or molded to a reinforced guiding catheter tubular body into a single assembly. The reinforced guiding catheter tubular body is made of braided wire construction. The catheter introducer sheath assembly includes a side port at which point a multiport stop cock is attached or molded, to facilitate the insertion and withdrawal of fluids.

Abstract: The drug delivery stent assembly includes a hollow tubular wire stent which extends in a path defining a generally cylindrical envelope and which has side walls facing outwardly of the cylindrical envelope with holes therein for delivery of liquid to a site in a vessel where the stent is placed and the stent being constructed in a manner which permits the stent to be placed in one of two states, one state being where the stent assumes the shape of an enlarged generally cylindrical envelope and the other state being where the stent assumes the shape of a contracted smaller cylindrical envelope.

Abstract: A cabinet for a loudspeaker with a preferably circular cross-section, in which the loudspeaker is closed on the front side substantially flush with one side of the cabinet and wherein means are provided for positioning the cabinet, wherein, starting from the periphery of the loudspeaker, the cabinet expands all round obliquely towards the rear for a specific distance, and in which the oblique surface consists of a plurality of oblique partial surfaces arranged at differing shallow angles side by side and/or one behind the other, and the cabinet tapers rearwardly of the specific distance towards the rear so as to be closed.

Abstract: The catheter comprises a tube-like basic body having a proximal end, a distal end section, a distal end and a central lumen; two active elements, at least one of which is a balloon, mounted on the distal end section of the basic body; the basic body further having a wall hole located at a position in between the distal end and the proximal end and close to a proximal end of the most proximal of the two active elements; a separate tube-like member received in the central lumen of the basic body and extending from an end hole at the distal end of the basic body to the wall hole and fixed close to the wall hole for receiving a guide wire.

Abstract: The corrosion proof kill switch includes: a box-shaped container having an open side; a switch mounted in a sealed manner in the container and having an operating portion extending outside the container; a wire harness comprising at least two wires, extending into the container in a sealed manner; a cover for the open side of the container, the cover being fixed to the container in a sealed manner over the open side of the container; and, a fuse holder mounted in the container and having a fuse receiving portion extending out of the container.

Abstract: A circuit for encoding and decoding key input data from a matrix of switches with a single transmission wire. The circuit for encoding and decoding key input data with a single transmission wire includes a control circuit, a charge storage circuit and a keyboard matrix circuit. The keyboard matrix circuit is composed of a group of resistors connected in series. Each resistor is coupled to ground via a manually actuated switch. When one of the switches is actuated or closed the switch provides an electrical path to ground through the resistors that precede the switch and shorts the resistors that follow the switch. When one of the switches is closed the charge stored on the charge storage circuit dissipates through the electrical path to ground provided by the actuated switch, at a rate related to the sum of the resistance preceding the switch.

Abstract: The capacitive proximity sensor for motor vehicles comprises a capacitance-measuring device for measuring the capacitance between at least one capacitor plate (1) which is fixed to the motor vehicle, on the one hand, and the environment, on the other hand, and an indicator for receiving the output signal of the measuring device.To provide a proximity sensor in which the disturbing and parasitary capacitances occurring in practice are particularly taken into account, the output signal S.sub.c of the capacitance-measuring device (5) is delivered to an amplifier (6), which is provided with a degenerative feedback loop (9) comprising a storage device (11) and a switch (10) so that the output signal (s.sub.A) of the amplifier (6) is held constant during normal travel, and the switch (10) is opened to interrupt the degenerative feedback loop (9) for a measurement. The switch is closed when the measurement has been completed.

Abstract: The power theft detector circuit (10, 110 and 210) detects when current is being diverted around a line conductor (20 or 220) passing through a meter housing (14 or 214). The circuit (10, 110 or 210) includes a current transformer (12, 112 or 212) coupled to the line conductor (20 or 220) within the meter and defines a primary winding (20 or 220) of the current transformer (12, 112 or 212). A secondary circuit (23, 123 or 224) includes a secondary winding (22, 122 or 226) of the transformer (12, 112 or 212) and sensing circuitry (24, R.sub.m, R.sub.1, and S; 124, R.sub.m, R.sub.1, S and 126; 232, R.sub.m, and 240) for sensing a change in the impedance reflected from the primary circuit into the secondary circuit (23, 123 or 224) when a low impedance jumper (26, 260) is connected in parallel with the line conductor (20 or 220) in the meter thereby to sense a power theft condition.

Abstract: An improved drive is provided for a syringe having a barrel and a plunger. The drive utilizes an electric motor which has an axial shaft that moves back and forth axially when the shaft is prevented from rotating. A syringe barrel holder is fixed relative to the electric motor housing and a plunger holder is rigidly fixed to the shaft. When the electric motor is energized, the plunger holder will move back and forth relative to the syringe barrel holder. A plurality of switches for controlling the electric motor are positioned in fixed locations relative to the motor housing. The plunger holder is operative to actuate and deactuate the switches during axial travel of the shaft.

Abstract: The method and apparatus are useful in forming a parison which has a varying wall thickness and an outer diameter larger than the outer diameter of the annular outlet orifice from which the parison is extruded. Such a parison is obtained by adding additional molten thermoplastic material to the parison while extruding the same to vary the thickness of portions of the parison. The additional molten material is directed radially outwardly from the axis of the parison to increase the wall thickness and to increase the swell of the parison which is defined as the ratio of the inner diameter of the parison to the outer diameter of the outlet orifice. Also the ratio of the outer diameter of the parison to the inner diameter of a mold in which the parison is blowmolded into a container is reduced permitting a larger container to be formed from the thicker portion of the parison while having a small entrance opening formed from a thin wall portion of the parison.

Abstract: The apparatus includes a peristaltic pump for withdrawing whole blood from a patient, a device for centrifuging the blood to separate plasma from the whole blood, a plasma treatment chamber for receiving the plasma, a vehicle positioned within the chamber and having an immunoadsorbent agent fixed thereon to interact and bond with an immunological reactant carried by the plasma that is passed through the chamber for removing the immunological reactant from the plasma, tubings connected to recombine the substantially immunological reactant free plasma with the remainder of the whole blood and a peristaltic pump for returning the recombined whole blood to the patient. In one plasma treatment chamber, the vehicle is defined by a spiral coiled membrane which has an immunoadsorbent agent fixed thereon. Each convolution of the spiral is spaced from an adjacent convolution and the coil is positioned within the chamber so that plasma flows through the space between the convolutions of the spiral coiled membrane.

Abstract: The method for bonding a plastic tubing to a metal needle includes the steps of coating the inner end of the needle with a cement, inserting the coated inner end of the needle within the outer end portion of a plastic tubing and applying a radiofrequency current across the plastic tubing around the inner end of the needle to heat seal the plastic tubing to the inner end of the needle.

Abstract: The nose seal assembly is utilized in a centrifugal chemical analysis apparatus wherein compressed air and wash water tubings are coupled through the assembly to the nose of an open ended hollow shaft for providing a seal between the nose and the assembly upon relative rotational movement therebetween. The assembly comprises a hollow bushing to which is clamped an annular web pad which is made of Nylatron NSB .RTM. having a high pressure x velocity (PV) factor and a low coefficient of friction. The assembly further includes a heat dissipation disc to which the wear pad is clamped and an elastomeric washer which is cemented to and between the bushing and the heat dissipation disc and which is designed to provide sufficient "give" to enable the assembly to maintain a good seal when the wear surface of the wear pad is not coplanar with the plane of the nose. Also, the nose has a hemi-toroid configuration to enhance sealing with, and to reduce wear of, the wear pad.