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Charles E Miller, Gerald L Schlatter, Louis T Yoshida: Method and apparatus for measuring steam quality. Engineering Measurements Co, James R Young, July 14, 1987: US04679947 (32 worldwide citation)

A method and apparatus for measuring steam quality of wet or two-phase flowing steam includes a flow-through densitometer comprised of two parallel tubes connected to two common nodes, a vibrator for causing the tubes to vibrate, and a transducer for detecting the frequency and amplitude of the vibr ...


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Hyok S Lew, Louis T Yoshida: Vortex shedding flow meter with stress concentration signal enhancement. Engineering Measurements Company, James R Young, October 13, 1987: US04699012 (21 worldwide citation)

This invention discloses a vortex shedding flowmeter comprising a vortex generating member disposed across one cross section of the flow passage and a vortex sensing member including a wing disposed across another cross section of the flow passage parallel to the vortex generating member, wherein on ...


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Hyok S Lew, Louis T Yoshida: Vortex shedding flow meter with noise suppressing and signal enhancing means. Engineering Measurements Company, James R Young, November 3, 1987: US04703659 (20 worldwide citation)

This invention discloses a vortex shedding flowmeter comprising a vortex generating member disposed across one cross section of the flow passage and a pair of vortex sensing wings respectively disposed across two cross section of the flow passage straddling the vortex generating member in a parallel ...


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Louis T Yoshida, Robert L Poland: Method and apparatus for managing alternator loads on engines. January 14, 1992: US05080059 (19 worldwide citation)

An improved engine load management system that will de-excite the field coils of an alternator that is driven by an internal combustion engine when the battery that the alternator charges is above a required minimum voltage and when the engine is operating under high load conditions such as accelera ...


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Louis T Yoshida, James M Forbis, Robert L Poland: Method & apparatus for managing alternator loads on engines. Nutronics Corporation, James R Young, August 13, 1991: US05038728 (18 worldwide citation)

The improved engine load management system of the present invention includes an apparatus that will de-excite the field coils of an alternator that is driven by an internal combustion engine when the battery that the alternator charges is above a required minimum voltage and when the engine is opera ...


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Charles E Miller, Robert L Poland, Louis T Yoshida: Method and apparatus for managing steam systems. Engineering Measurements Co, James R Young, November 10, 1987: US04705212 (18 worldwide citation)

A steam system management method and apparatus includes a condensate collection reservoir with a pilot operated, pressure actuated dump valve that has a quick, snap action fully open/fully closed mode of operation. The pilot operation of the dump valve is actuated by a very low voltage solenoid actu ...


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Charles E Miller, Louis T Yoshida, Michael Steinbach: Clad piezoelectric valve actuator and application of same in controlling highly reactive and corrosive gases. Engineering Measurements Company, James R Young, Chrisman Bynum & Johnson, August 1, 2000: US06095175 (16 worldwide citation)

A micro-mass flow controller (10) has a sonic choked flow restriction (28) with an oscillatable valve (26) for repetitiously opening and closing the sonic choked flow restriction (28) in a time-modulated sequence to set or vary mass flow rate of gas through the sonic choked flow restriction (28) ove ...


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Charles E Miller, Louis T Yoshida, Michael Steinbach, John F Waers: Vortex detector and flow meter. Engineering Measurements Company, James R Young, Scott B Allison, Chrisman Bynum & Johnson P C, April 24, 2001: US06220103 (10 worldwide citation)

A vortex detector comprises a generally cylindrical housing or body that defines a flow passage extending from an upstream end to a downstream end. A vortex generator disposed diametrically across the cylindrical housing near the upstream end of the cylindrical housing and oriented substantially per ...


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