Abstract: An electrically dual motor powered window cover assembly operational on a single shaft supporting an extendable and retractable window covering, control motor, a slave motor, two cord spools, two cords, a stop assembly and a power cable wired with reverse polarity between the control and slave motors. An offset gearbox may be included to offset the reverse rotation of the slave motor to allow the control and slave motors to be wired with the same polarity. A pair of lifting gear boxes may be mounted to the shaft proximal opposite ends of the shaft to assist in the lifting of a heavier window covering. The assembly may include a wireless remote control transmitter for operating the two DC motors and electrical and mechanical circuitry adapted to store positional information.

Abstract: A thermophoretic sampler includes a sample assembly into which a removable sample cartridge can be inserted. The sample cartridge holds a substrate that, upon insertion, is exposed to a sample chamber. Thermophoresis is induced in the sample chamber, causing nanoparticles to be deposited on the substrate.

Abstract: A thermophoretic sampler includes a sample assembly into which a removable sample cartridge can be inserted. The sample cartridge holds a substrate that, upon insertion, is exposed to a sample chamber. Thermophoresis is induced in the sample chamber, causing nanoparticles to be deposited on the substrate.

Abstract: A combustion chamber, having an upper part and a lower part, may include an annular constriction, in combination with the combustion chamber, to aid in directing partially combusted gases such as carbon monoxide away from the periphery of the combustion chamber back toward its center, and into the flame front. The annular constriction may also impede the flow of partially combusted gases located at the periphery, thus increasing the time these gases spend within the combustion chamber and increasing the likelihood that any products of incomplete combustion will undergo combustion. The combustion chamber may further comprise a dual burner cooktop for directing combustion gases and exhaust to multiple cooking vessels. In further embodiments, the combustion chamber may be made of, lined, or clad with a metal alloy comprising iron, chromium, and aluminum.

Abstract: A thermophoretic sampler includes a sample assembly into which a removable sample cartridge can be inserted. The sample cartridge holds a substrate that, upon insertion, is exposed to a sample chamber. Thermophoresis is induced in the sample chamber, causing nanoparticles to be deposited on the substrate.

Abstract: A combustion chamber, having an upper part and a lower part, may include an annular constriction, in combination with the combustion chamber, to aid in directing partially combusted gases such as carbon monoxide away from the periphery of the combustion chamber back toward its center, and into the flame front. The annular constriction may also impede the flow of partially combusted gases located at the periphery, thus increasing the time these gases spend within the combustion chamber and increasing the likelihood that any products of incomplete combustion will undergo combustion. The combustion chamber may further comprise a dual burner cooktop for directing combustion gases and exhaust to multiple cooking vessels. In further embodiments, the combustion chamber may be made of, lined, or clad with a metal alloy comprising iron, chromium, and aluminum.

Abstract: A thermophoretic sampler includes a sample assembly into which a removable sample cartridge can be inserted. The sample cartridge holds a substrate that, upon insertion, is exposed to a sample chamber. Thermophoresis is induced in the sample chamber, causing nanoparticles to be deposited on the substrate.

Abstract: A combustion chamber, having an upper part and a lower part, may include an annular constriction, in combination with the combustion chamber, to aid in directing partially combusted gases such as carbon monoxide away from the periphery of the combustion chamber back toward its center, and into the flame front. The annular constriction may also impede the flow of partially combusted gases located at the periphery, thus increasing the time these gases spend within the combustion chamber and increasing the likelihood that any products of incomplete combustion will undergo combustion. The combustion chamber may further comprise a dual burner cooktop for directing combustion gases and exhaust to multiple cooking vessels. In further embodiments, the combustion chamber may be made of, lined, or clad with a metal alloy comprising iron, chromium, and aluminum.

Abstract: The present invention provides a process for the preparation of an enantiomerically enriched non-racemic chiral diol and an enantiomerically enriched non-racemic chiral epoxy compound by a hydrolytic kinetic resolution reaction. The process includes the step of contacting oxygen and mixture including a racemic chiral epoxy compound, a non-racemic Co(II) complex catalyst, an aromatic carboxylic acid and water, at a temperature and length of time sufficient to produce a mixture of said non-racemic chiral diol and said non-racemic chiral epoxy compound. The present invention also provides a process for the preparation of an enantiomerically enriched non-racemic chiral diol and an enantiomerically enriched non-racemic chiral epoxy compound by a hydrolytic kinetic resolution reaction.

Abstract: The present invention provides a process for the preparation of an enantiomerically enriched non-racemic chiral diol and an enantiomerically enriched non-racemic chiral epoxy compound by a hydrolytic kinetic resolution reaction. The process includes the step of contacting oxygen and mixture including a racemic chiral epoxy compound, a non-racemic Co(II) complex catalyst, an aromatic carboxylic acid and water, at a temperature and length of time sufficient to produce a mixture of said non-racemic chiral diol and said non-racemic chiral epoxy compound. The present invention also provides a process for the preparation of an enantiomerically enriched non-racemic chiral diol and an enantiomerically enriched non-racemic chiral epoxy compound by a hydrolytic kinetic resolution reaction.

Abstract: A method for making an indole compound includes transition metal-catalyzed arylation of a hydrazone to form an aryl hydrazone, hydrolysis of the aryl hydrazone to form an aryl hydrazine, and acid catalyzed cyclization of the aryl hydrazine to form the indole compound.

Abstract: A game including a game box, the bottom of which forms the playing field which is of checkerboard configuration having five rows and five columns of checkerboard squares. Two similar sets of playing pieces are provided with each set being distinguishingly identified from the other. Each set includes five playing pieces; two cubes, two tetrahedrons and one sphere with a flattened bottom to permit it to be positioned on the playing field. Storage sections are provided in the box adjacent to one opposing pair of ends of the box. The storage sections include a top wall having geometrically configured openings which correspond to the shapes of the playing pieces so that each opening can receive its respective playing piece. The game combines features of both chess and checkers.

Abstract: An electronic synthesizer instrument incorporates bass pedals for the notes of the musical scale, together with foot control apparatus adapted to select and modify the tone quality of sounds produced by operation of the bass pedals. The foot control apparatus includes push button switches which are operated by the toe of an operator's foot, and slide controls which are positioned by the operator's foot. At least some of the switches are preset switches for selecting and controlling multiple combinations of the functional units of the synthesizer. The control state of the instrument is at all times indicated by readily observable indicating lights.

Abstract: A keyboard of an electronic musical instrument incorporates a plurality of variable capacitors, one for each key, with one conductor of each capacitor being connected for movement with an individual key of the keyboard toward and away from the other conductor, so as to vary the capacitance of the capacitor in accordance with the force with which the key is depressed.