Abstract: An inflatable hover structure, conveyor structure, and slide structure are disclosed utilizing an inflatable envelope with a perforated top surface and tensioning reinforcements to establish a smooth hover surface.

Abstract: An inflatable hover structure, conveyor structure, and slide structure are disclosed utilizing an inflatable envelope with a perforated top surface and tensioning reinforcements to establish a smooth hover surface.

Abstract: A composition for forming a protective layer on a substrate comprises a plurality of silicas having different particle size ranges, and a curable resin. The substrate may be a building substrate such as a floor or wall concrete, blocks or bricks. The silica is typically white or colorless crystalline compound, SiO2, occurring abundantly as quartz, sand, flint, agate, and many other minerals used to manufacture a wide variety of materials, especially glass and concrete.

Abstract: A composition for forming a protective layer on a substrate comprises a plurality of silicas having different particle size ranges, and a curable resin. The substrate may be a building substrate such as a floor or wall concrete, blocks or bricks. The silica is typically white or colorless crystalline compound, SiO2, occurring abundantly as quartz, sand, flint, agate, and many other minerals used to manufacture a wide variety of materials, especially glass and concrete.

Abstract: A tree injection system operates to deliver fluid chemistry to a tree. The tree injection system includes a tree injection device. The tree injection device includes an injection gun and a motorized fluidics system. Some embodiments further include a pod system that includes a pressurizable fluid container that receives fluid and pressurized air from the injection gun.

Abstract: A multi-baler system includes at least a first baler and a second baler that are dimensioned and functionally configured for crushing and baling different respective materials such as cardboard and plastic. Movable platens forcibly extend and withdraw under the control of a programmable logic controller. Sensors detect the dispositions of doors, gates, and platens. A baler dedicated to baling plastic fully extends its platen to expel air from plastic materials in a baling compartment. Platens forcibly extend for the durations of extension time intervals as measured by the controller. Threshold sensors provide signals by which the controller discerns when a baler is full. A platen is maintained in an extended position as a bale is prepared.

Abstract: This beer-dispensing apparatus has a keg fitting with a single valve in the keg that is operated by an annular probe in a probe fitting to control the flow of the beer from the keg and the flow of gas into the keg. Both gas flow and beer flow are shut off automatically when the probe moves upward in the probe fitting. A conventional bayonet connection is used to connect the probe fitting to the keg; but a single handle, operated sequentially, connects the probe fitting to the keg and then opens the keg valve by further movement of the handle in the same direction.

Abstract: This safety device has a delivery outlet and a pressure-relief valve for venting gas from a source of gas when the gas pressure rises above a predetermined maximum. A delivery line supplies gas from the source to a place of use, and there is a delivery line shut-off valve which shuts off flow to the place of use whenever the relief valve opens by a substantial distance from its seat. This prevents piping and hoses communicating with the delivery line from being subjected to excess pressure in the event that pressure rises faster than the relief valve can vent the excess pressure.