Abstract: Systems and methods of the present disclosure provide for dynamic delay equalization of related media signals in a media transport system. Methods include receiving a plurality of related media signals, transporting the related media signals along different media paths, calculating uncorrected propagation delays for the media paths, and delaying each of the related media signals by an amount related to the difference between the longest propagation delay (of the uncorrected propagation delays) and the uncorrected propagation delay of the related media signal/media path. Calculating the uncorrected propagation delays and delaying the related media signals may be performed in response to a change to the propagation delay of at least one of the related media signals/media paths. Additionally or alternatively, calculating the uncorrected propagation delays and delaying the related media signals may be performed while transporting the related media signals.

Abstract: A concrete screed device, having: a base bar extending between first and second ends and having a bottom member and an upright member; a handle structure connected to the base bar, between the first and second ends, and extending away from the base bar to a grip portion; a screed bar disposed against the upright member of the base bar; guide members connected to the screed bar and extending through the upright member of the base bar; a battery powered motor supported along the base bar and operationally connected to one of the guide members to oscillate the screed bar against the base bar; and a wheel supported under the bottom member of the base bar near the first end of the base bar.

Abstract: Disclosed is a concrete screed device, having: a handle structure defining a lower end and an upper end spaced apart from each other to define a screed handle structure height; a base bar connected to the lower end of the handle structure; an screed bar disposed against the base bar and configured to oscillate against the base bar; and a motor supported by the screed and operationally connected to the screed bar to oscillate within an oscillatory range of movement against the base bar.

Abstract: A method for rapidly preparing a frozen fluorocarbon emulsion for administration without degradation and having an extended shelf life is disclosed.

Abstract: Perfluorocarbon emulsion formulations are oxygenated prior to use by means of a portable oxygenation system. The blood substitute is in a closed container or bag. An oxygen-containing gas is introduced into the bag from a separate container. The bag is continuously agitated for a sufficient time to increase the pO.sub.2 of the perfluorocarbon emulsion formulations to a desired pressure, e.g., to at least 600 mmHg. In one embodiment, the system used for oxygenation of the perfluorocarbon emulsion formulations comprises a small tank for gas having an inlet port and an outlet port fitted with shut-off valves. The outlet port is adapted to be connected to a filter which, in turn, is adapted to be connected to the inlet port of a three-way valve. The primary outlet of the three-way valve is adapted to mount a hypodermic needle which is adapted to be pushed through a rubber septum in a port of the bag to communicate with the interior of the bag.

Abstract: Perfluorocarbon emulsion formulations are oxygenated prior to use by means of a portable oxygenation system. The blood substitute is in a closed container or bag. An oxygen-containing gas is introduced into the bag from a separate container. The bag is continuously agitated for a sufficient time to increase the pO.sub.2 of the perfluorocarbon emulsion formulations to a desired pressure, e.g., to at least 600 mmHg. In one embodiment, the system used for oxygenation of the perfluorocarbon emulsion formulations comprises a small tank for gas having an inlet port and an outlet port fitted with shut-off valves. The outlet port is adapted to be connected to a filter which, in turn, is adapted to be connected to the inlet port of a three-way valve. The primary outlet of the three-way valve is adapted to mount a hypodermic needle which is adapted to be pushed through a rubber septum in a port of the bag to communicate with the interior of the bag.

Abstract: A vineyard air sprayer includes an axial fan type of blower assembly which is vertically mounted upon a trailer rearwardly of a spray tank. The blower assembly has a cylindrical outer shell having an annular discharge ring mounted to the bottom end thereof. An inner shell is coaxially mounted within the outer shell, and a truncated annular diffuser is secured to the bottom end of the inner shell in a coaxial relationship therewith. The outer edge of the diffuser is spaced from the outer edge of the discharge ring to form two arcuate discharge openings at opposite sides of the blower assembly. The diffuser includes an upwardly projecting annular lip portion which is truncated by a vertical wall at its front end.

Abstract: A device capable of being mounted on a horizontal surface of a motor vehicle for exhibiting emergency signs includes three plate sections hinged together along two side edges thereof to form a triangular-shaped sign support. The remaining side edge of the sections are detachably interconnected by means of fasteners, and means are provided on one of the plate sections for detachably mounting the support on the horizontal surface. Channel means are provided on another of the plate sections for the reception of interchangeable emergency signs.