Abstract: This invention describes the methodology to produce solid heterogeneous chiral organocatalysts that can be used in condensation reactions. The catalysts can be recovered in a simple manner by filtration and can also be reused.

Abstract: This invention describes the methodology to produce solid heterogeneous chiral organocatalysts that can be used in condensation reactions. The catalysts can be recovered in a simple manner by filtration and can also be reused.

Abstract: This invention describes the methodology to produce solid heterogeneous chiral organocatalysts that can be used in condensation reactions. The catalysts can be recovered in a simple manner by filtration and can also be reused.

Abstract: This invention describes the methodology to produce solid heterogeneous chiral organocatalysts that can be used in condensation reactions. The catalysts can be recovered in a simple manner by filtration and can also be reused.

Abstract: The invention relates to a device for drying a gas, in particular air, that comprises at least one chamber (5) with an inlet (5a) for the flow of gas to be treated and an outlet (5b) for the flow of treated gas, said chamber being limited by at least one membrane (6) having a water vapor perviousness that is significantly higher than the perviousness to other gases or vapors, a humidity absorbing material being provided or flowing against the membrane (6) on the side opposite the chamber. The device includes a stack of plates (P1, P2) provided with central openings (A, B); each chamber (5) is formed by a central opening (A) located between two parallel membranes (6) while the humidity absorbing material is provided against each membrane (6); each plate (P1) is sandwiched between two plates (P2, P3) including a housing (B, B1) for the humidity absorbing material; and a plurality of chambers (5) are stacked and connected in series.

Abstract: The invention relates to a device for drying a gas, in particular air, that comprises at least one chamber (5) with an inlet (a) for the flow of gas to be treated and an outlet (5b) for the flow of treated gas, said chamber being limited by at least one membrane (6) having a water vapour perviousness that is significantly higher than the perviousness to other gases or vapours, a humidity absorbing material being provided or flowing against the membrane (6) on the side opposite the chamber. The device includes a stack of plates (P1, P2) provided with central openings (A, B); each chamber (5) is formed by a central opening (A) located between two parallel membranes (6) while the humidity absorbing material is provided against each membrane (6); each plate (P1) is sandwiched between two plates (P2, P3) including a housing (B, B1) for the humidity absorbing material; and a plurality of chambers (5) are stacked and connected in series.

Abstract: A device for mending a broken cord in a sports net. The device includes a pair of ferrules having deformable flaps that can be crimped onto the broken cord ends. The ferrules can be connected with each other by a flexible cord element gripped by sleeves on the ferrules, by a rigid connecting strip, or by a flexible cord element threaded through openings and gripped by the flaps crimped onto the broken cord ends. In the latter case, the broken cord ends are threaded through the openings and knotted to enhance the security of the connection.

Abstract: An electronic game in which the game participant fires a hand held target weapon at targets and must evade simulated return fire directed at the person of the participant from hazard weapons. The targets include lamps which are momentarily energized one at a time by timing circuitry. The target weapon includes a trigger switch and a photosensor for detecting when the target weapon is accurately aimed at an energized target. Digital displays indicate the number of shots remaining and the number of target hits that have been recorded by the participant. The hazard weapons emit infrared beams at the body of the game participant and are activated one at a time by timing circuitry. The game is terminated when the participant has expended all of the allotted shots at the targets or when the beam from an activated hazard weapon is intercepted by the person of the game participant.