Abstract: A wet sand loading system includes a material conveyor configured for carrying wet sand from a hopper to an elevated position over a loading platform. A funnel assembly is coupled to the material conveyor. The funnel assembly has a lower end movable relative to the material conveyor to direct wet sand into the hopper in a selectable direction.

Abstract: A V-bank filter apparatus and method for air filtration. The V-bank filter may include varying the downstream regions between adjacent V shaped filter elements. The V-bank filter may include a housing with one or more structural supports. The structural supports of the filter housing may include one or more through openings. The filter media elements may include one or more hinges and/or flaps.

Abstract: An apparatus and method for an air filter media and frame having structural support members, including a tensile support member.

Abstract: An apparatus and method for an air filter media and frame having structural support members, including a tensile support member.

Abstract: A multilayer printed circuit board can be used in high-frequency applications, is not easily affected by environmental changes, and has stable dielectric characteristics. A multilayer printed circuit board suitable for use in the high-frequency range includes at least two printed wiring sheets laminated with an interlayer bonding member therebetween. At least one of the at least two printed wiring sheets includes an insulating film, an adhesive layer containing a thermoplastic polyimide disposed on at least one surface of the insulating film, and a metal wiring layer disposed on the adhesive layer. The interlayer bonding member contains a thermoplastic polyimide.