Abstract: A method for determining motional branch current in an ultrasonic transducer of an ultrasonic surgical device over multiple frequencies of a transducer drive signal. The method may comprise, at each of a plurality of frequencies of the transducer drive signal, oversampling a current and voltage of the transducer drive signal, receiving, by a processor, the current and voltage samples, and determining, by the processor, the motional branch current based on the current and voltage samples, a static capacitance of the ultrasonic transducer and the frequency of the transducer drive signal.

Abstract: A one-hand engageable vacuum tool connection assembly for connection to a commercial vehicle vacuum system that includes: a vacuum tool connection assembly hose having a first end and a second end; an upper assembly and a lower assembly having a tool connector where the tool connector engages a second end of the lower assembly swivel cuff and is typically adapted to receive one or a plurality of different types of vacuum tools. The vacuum tool engagement assembly is typically free of any flapper valve, metal or spring biased elements.

Abstract: A method and apparatus for controlling the discharge of an elastomeric material from a high intensity mixing machine having a mixing chamber with two rotors and an outlet with a drop door. The drop door is open when the rotors are in a predetermined preferred position for unloading the mixing machine in response to the positions of indicators on the rotor shafts. Sensors mounted in the wall of the outlet determine when the gate is clear after unloading of the mixed elastomeric material whereby the drop door may be moved into the outlet for closing of the mixing chamber as soon as the unloading is completed.

Abstract: Steel cables are utilized for reinforcing a wide variety of rubber articles. For instance, pneumatic tires are normally reinforced with steel tire cords. It is important for such reinforcing cables to exhibit good fatigue and corrosion resistance. It has been unexpectedly found that the fatigue and corrosion resistance of such cables can be improved by incorporating syndiotactic-1,2-polybutadiene into the interstices between the steel filaments in such cables. This invention more specifically relates to a cable for reinforcing rubber articles having improved fatigue and corrosion resistance which is comprised of a plurality of steel filaments and syndiotactic-1,2-polybutadiene, wherein the syndiotactic-1,2-polybutadiene is dispersed within interstices between said steel filaments.

Abstract: Steel cables are utilized for reinforcing a wide variety of rubber articles. For instance, pneumatic tires are normally reinforced with steel tire cords. It is important for such reinforcing cables to exhibit good fatigue and corrosion resistance. It has been unexpectedly found that the fatigue and corrosion resistance of such cables can be improved by incorporating syndiotactic-1,2-polybutadiene into the interstices between the steel filaments in such cables. This invention more specifically relates to a cable for reinforcing rubber articles having improved fatigue and corrosion resistance which is comprised of a plurality of steel filaments and syndiotactic-1,2-polybutadiene, wherein the syndiotactic-1,2-polybutadiene is dispersed within interstices between said steel filaments.