Abstract: A configurable panel display includes panel frames configurable to support respective panels, adjacent ones of the panel frames being pivotably connected along opposing edges, each panel frame having intersecting sides formed by tubular frame members, and a cap hinge assembly pivotably connecting two adjacent ones of the panel frames. Each cap hinge assembly includes two frame corner pieces, each frame corner piece interconnecting tubular frame members of two intersecting sides of a respective one of the adjacent ones of the panel frames. Each frame corner piece includes projections received within the interconnected tubular frame members, a central corner piece body from which each of the projections integrally extends, a hinge cap spanning the two frame corner pieces, and two fastening members, each fastening member connecting the hinge cap to a respective one of the frame corner pieces.

Abstract: A configurable panel display includes panel frames configurable to support respective panels, adjacent ones of the panel frames being pivotably connected along opposing edges, each panel frame having intersecting sides formed by tubular frame members, and a cap hinge assembly pivotably connecting two adjacent ones of the panel frames. Each cap hinge assembly includes two frame corner pieces, each frame corner piece interconnecting tubular frame members of two intersecting sides of a respective one of the adjacent ones of the panel frames. Each frame corner piece includes projections received within the interconnected tubular frame members, a central corner piece body from which each of the projections integrally extends, a hinge cap spanning the two frame corner pieces, and two threaded fasteners, each threaded fastener connecting the hinge cap to a respective one of the frame corner pieces.

Abstract: An in-line treble port venturi connector provides a low flow, low pressure inlet port for drawing supplemental fluid into a main flow path. The connector includes a main flow tube having a mixing channel restricting flow and lowering pressure between an upstream port and a downstream port. A baffle projects into the main flow tube from the inner surface of the mixing channel at a location upstream of an inlet port, obstructing main flow to create a separation zone in the low pressure area, causing rotational flow within the separation zone and lowering the average flow rate in the direction of main flow. A pressure differential allows supplemental fluid to be drawn into the mixing channel through the inlet port. The connector may be used to introduce hydrogen or oxygen gas from an on-board generator into a main flow of hydrocarbon fuel in the intake manifold of an internal combustion engine.