Abstract: A density/solute monitor having at least one ultrasound probe, a signal processing unit, and a computing mechanism, and process for using the same, to measure phase shift between emitting and receiving ultrasound, sound velocity, compressibility, density, and solute concentration of fluid flowing through a fluid processing system. The ultrasound probe emits and receives ultrasound waves through the fluid and the signal-processing unit and computing mechanism process the ultrasound waves to determine phase and time shift. The computing mechanism converts phase shift to density, compressibility, and solute concentration measurements of the fluid. Calibrating fluids calibrate the detected phase shift in terms of sound velocity in the factory. Measurements provide information about passage of solutes and flow to achieve better solute collection efficiency, solution purity, and control of fluid processing systems.

Abstract: The present invention provides a method for sending faxes over the Internet, in which the sender gets a confirmation immediately after sending the facsimile message over a regular, uncontrolled Internet connection, and using standard modems or a Local Area Network (LAN) connection to the Internet.

Abstract: The present invention is an expansion of the IFB device that provides a means to enable multiple devices to access a global computer network (such as the “Internet”) from a single network connection. The present invention comprises an input modem for communicating directly with a personal computer. This device can have a second input modem that communicates directly with a second device such as a facsimile machine. The invention has an output modem that communicates with the Internet or computing network. The present invention also contains a Central Processing Unit (“CPU”) to run various application software programs, a ROM that will store the software and a RAM that can store information sent or received over the computer network. The invention also contains software utility programs that will establish a dial-up connection with the computer network that will enable a personal computer to access the network.