Abstract: A medical device includes wake circuitry and telemetry circuitry. The wake circuitry is configured to receive a first set of data from a device associated with the medical device, where the first set of data is received at a frequency band. The wake circuitry is configured to output a set of pulses based on the first set of data. The wake circuitry is configured to detect a data pattern using the set of pulses. The wake circuitry is configured to output an activation signal in response to a determination that the data pattern satisfies a data pattern requirement. The telemetry circuitry is configured to output a second set of data in response to receiving the activation signal. The second set of data is transmitted at the frequency band. The telemetry circuitry is configured to establish a communication session with the device using the second set of data.

Abstract: A sensor tester for testing multiple vehicle sensors is provided comprising: a circuit for testing a vehicle piezoelectric knock sensor; a circuit for testing a vehicle speed sensor; and a circuit for testing ignition coils. The circuit for testing piezoelectric knock sensors comprises: an integrated circuit electrically connectable to a power source, the integrated circuit having a multiple step voltage divider, a connector for connecting the integrated circuit to the knock sensor; and a plurality of light emitting diodes electrically connected to the voltage divider of the integrated circuit.

Abstract: A harness for testing a throttle position sensor having wires operatively connected therein terminating in a connector. The harness comprises a card and a first cable of multiple wires hard-wired to the card at one end and terminating in a connector at the other. The connector of the first cable is removably connectable to the throttle position sensor connector. The card further comprises a second cable of multiple wires hard-wired to the card at one end and operably attached to a connector at another end. The connector of the second cable is a mate for the connector of the first cable. At least two terminals are mounted on the card and connected between the wires of the first and second cables for connecting the card to a digital volt/ohm meter. A light is mounted on the card and connected between wires of the first and second cables to determine and visually indicate the continuity of the throttle position sensor wires. In another preferred embodiment, the first cable comprises a plurality of other ends.

Abstract: A front-discharge nitrate truck with an articulated boom is disclosed. The boom is anchored about a pivot point which allows it to travel in a horizontal arc of at least 180.degree.. A joint in the boom near the anchor point enables the boom to be elevated in a substantial vertical arc. The boom elevation and orientation can be controlled by controls within the truck cab to locate the distal end of the boom at any ground position within a horizontal arc described by the distal end of the boom. The boom may further be folded alongside the truck for easy transport. The truck has its bed upon scales so that the truck operator may discharge a predetermined amount of prilled nitrate in a bore hold.

Abstract: The invention includes an ignition control assembly including a first ignition control module adapted to be connected to the distributor and to control electrical operation of the distributor, and a redundant ignition control module including circuit means adapted to be connected to the distributor to control electrical operation of the distributor. The control modules are mounted in a location remote from the distributor. The mounting includes a heat sink for maintaining the control modules at relatively low temperatures. A switch and circuitry are also provided for alternatively providing an electrical connection between the first control module and the distributor and between the redundant control module and the distributor.

Abstract: An electrically conductive terminal adapted to be fixedly connected to the free end of a wire such as a spark plug wire. The terminal includes one end constructed to releasably clampingly engage a conductor such as a spark plug and an opposite end comprising a body adapted to house the free end of the spark plug wire. A stake member is provided for securing the other end of the terminal member to the spark plug wire and also for providing an electrical conductor between the core and the terminal. The stake member extends through a hole provided in the terminal and through the spark plug wire.

Abstract: A clutch pulley assembly primarily designed for use with electromagnetic clutches for driving air conditioning compressors on automobiles and the like wherein the component parts of the clutch pulley assembly are fabricated from stampings with a reduction in the amount of machinery required to complete the device. The method of making and assembling the structure is part of the invention and includes the press forming of a web disc for supporting pulley grooves from sheet steel having desirable magnetic properties to produce an annular flange portion thereon at the outer edge thereof and extending substantially perpendicular thereto, then punching a central hub receiving aperture in the disc and then mounting the central aperture of said disc on a central hub made from a tube section. A die forming method of manufacturing a pulley groove is also disclosed.

Abstract: A clutch pulley assembly primarily designed for use with electromagnetic clutches for driving air conditioning compressors on automobiles and the like wherein the component parts of the clutch pulley assembly are fabricated from stampings with a reduction in the amount of machinery required to complete the device. The method of making and assembling the structure is part of the invention and includes the press forming of a web disc for supporting pulley grooves from sheet steel having desirable magnetic properties to produce an annular flange portion thereon at the outer edge thereof and extending substantially perpendicular thereto, then punching a central hub receiving aperture in the disc and then mounting the central aperture of said disc on a central hub made from a tube section. A die forming method of manufacturing a pulley groove is also disclosed.

Abstract: A clutch pulley assembly primarily designed for use with electromagnetic type clutches for driving air conditioning compressors on automobiles and the like wherein the component parts of the clutch pulley assembly are fabricated from stampings with a reduction in the amount of machining required to complete the device. Another feature is the flexibility permitted by using a central hub structure with different sized pulley grooves. The method of making and assembling the structure is also part of the invention.