Abstract: An aerosol generation device includes a circuit or microcontroller for detecting and adjusting vibration frequency of an electronic transducer to a determined resonance frequency that changes during operation of the device.

Abstract: A droplet delivery device includes a housing with a mouthpiece port or outlet from a nasal device for releasing fluid droplets, a fluid reservoir, and an ejector bracket having a membrane positioned between a mesh with a plurality of openings and a vibrating member that is coupled to an electronic transducer, such as an ultrasonic transducer. The transducer vibrates the vibrating member which causes the membrane to push fluid supplied by the reservoir through the mesh to generate droplets in an ejected stream released through the outlet.

Abstract: A droplet delivery device with an ejector mechanism and fluid reservoir includes an accelerometer to determine and communicate optimized mixing of fluid in the reservoir for inhalation of droplets, such as into the lungs, from the droplet delivery device.

Abstract: A droplet delivery device includes a housing with a mouthpiece port or outlet from a nasal device for releasing fluid droplets, a fluid reservoir, and an ejector bracket having a membrane positioned between a mesh with a plurality of openings and a vibrating member that is coupled to an electronic transducer, such as an ultrasonic transducer. The transducer vibrates the vibrating member which causes the membrane to push fluid supplied by the reservoir through the mesh to generate droplets in an ejected stream released through the outlet.

Abstract: An ejector mechanism, droplet delivery device and related methods or delivering small droplets to the respiratory system of a users disclosed. The ejector mechanism comprises a piezoelectric actuator and an aperture plate, the aperture plate having and a plurality of openings formed through its thickness, wherein at least the fluid entrance side of one or more of said openings is configured to provide a surface contact angle of less than 90 degrees and the piezoelectric actuator is operable to oscillate the aperture plate at a frequency to thereby generate an ejected stream of droplets during use. The droplet delivery device is automatically breath actuated by a user when the differential pressure sensor senses a predetermined pressure change. The ejector mechanism is then actuated to generate a plume of droplets having an average ejected particle diameter within the respirable size range having a diameter of less than about 4 um so as to target the respiratory system of the user.

Abstract: An ultrasonic droplet delivery device and related methods for delivering precise and repeatable amounts of a substance to a user for respiratory use is disclosed. The ultrasonic droplet delivery device generally comprises a body housing, a mouthpiece having an ejector mechanism, and a fluid cartridge having at least one fluid reservoir. In certain embodiments, the ejector mechanism may comprise at least one ultrasonic actuator and at least one aperture plate with a plurality of openings formed through its thickness for ejecting droplets. The device may further comprise at least one differential pressure sensor configured to activate the ejector mechanism upon sensing a pre-determined pressure change within the device to thereby generate the ejected stream of droplets.

Abstract: Provided is a method for operating a gas-phase, fluidized-bed reactor. The method has the steps of (a) receiving a signal from a probe in contact with the interior of the reactor or a process component in communication with the reactor, wherein the signal is derived from a physical property or condition within the reactor or the process component; (b) modifying the signal to create a modified signal; and (c) adjusting one or more operating parameters of the reactor in response to the modified signal if the physical property or condition is different than a desired value. There is also a method for reducing fouling in a distributor plate of a gas-phase, fluidized-bed reactor with a recycle line.

Abstract: Provided is a method for operating a gas-phase, fluidized-bed reactor. The method has the steps of (a) receiving a signal from a probe in contact with the interior of the reactor or a process component in communication with the reactor, wherein the signal is derived from a physical property or condition within the reactor or the process component; (b) modifying the signal to create a modified signal; and (c) adjusting one or more operating parameters of the reactor in response to the modified signal if the physical property or condition is different than a desired value. There is also a method for reducing fouling in a distributor plate of a gas-phase, fluidized-bed reactor with a recycle line.

Abstract: The invention includes a dust mitigation device that utilizes electromagnetic waves to protect devices from dust deposition. The device includes a nonconducting (dielectric) material separating at least one electrode, and in some embodiments a plurality of electrodes, from a grounded layer. The electrodes are connected to a single phase AC signal or a transient voltage signal. In some embodiments the grounded layer is created using a continuous conductor or a conductive grid. In some embodiments, the dielectric, the electrodes, and/or the grounded layer are transparent. The electromagnetic fields produced by the electrodes lift dust particles away from the shield and repel charged particles. Deposited dust particles are removed from the dust mitigation device when the electrodes are activated, regardless of the resistivity of the dust. The invention further includes a method of mitigating dust using such components.

Abstract: In a satellite control system, a liquid is ejected by thermal ejection from holes in a substrate structure to create a reactive force on the satellite allowing the position, such as the attitude, of the satellite to be adjusted.

Abstract: In a satellite control system, a liquid is ejected by thermal ejection from holes in a substrate structure to create a reactive force on the satellite allowing the position, such as the attitude, of the satellite to be adjusted.