Abstract: A solar energy receiver comprises a panel, having a graphite core, a substantially gas tight housing encasing the graphite core, a heat exchanger comprising heat exchanger tubing, a heat exchanger inlet and a heat exchanger outlet. The heat exchanger tubing is at least partially embedded in the graphite core, and the heat exchanger inlet and the heat exchanger outlet extend through the housing. The housing is sealed around the heat exchanger inlet and the heat exchanger outlet. A method of manufacturing a solar energy receiver comprises: a) fabricating the heat exchanger in a serpentine coil shape; b) inserting grooved planks of graphite between individual coils of the heat exchanger to form the graphite core such that the coils are encompassed in the grooves; c) inserting the graphite and heat exchanger into the housing; and d) sealing the housing and sealing openings around the inlet and outlet where they pass through the housing.

Abstract: A presentation capsule is provided for the display, transport and protection of A2 or A3 sized documents including: a rigid body including at least two body portions configured for opening and closing in locking engagement with each other; a handle portion having different material to the body and formed into and extending from the body; a base also being of different material to the body and formed into and extending from the body; wherein, in combination, the handle portion and base are configured for self-supporting the case on a surface without contact of the body with the surface.

Abstract: Included is a cord storage device. The cord storage device may include an exterior portion that is constructed of a nonconductive material. The cord storage device may also include at least one receiving surface on the exterior portion, the receiving surface configured to define a cord holding aperture. The cord holding aperture may include a cord insertion portion, the cord insertion portion constructed to receive a cord. The cord holding aperture may also include a cord storing portion constructed with at least one dimension being smaller than the cord insertion portion, the cord storing portion being configured to receive the cord from the cord insertion portion. The cord holding aperture may also include a cord locking portion that can be constructed with at least one dimension being smaller than the cord storing portion, the cord locking being configured to removably secure the cord in the cord storing portion.

Abstract: A joint suitable for construction castings having a frame and a lid or cover, such as manholes, grates, trench drains, hatches and the like, and construction castings incorporating the same. No tools are necessary to separate the joint. An enlarged head located on a cover fits into a socket located on a frame or adjacent lid. To separate the head from the socket, the lid is lifted to a substantially vertical position and turned about ninety degrees. The lid can then be lifted away from the socket. When the joint is used in manhole or hatch assemblies, a latch may be used to hold the cover open and the cover may be opened and closed with a lever.

Abstract: A joint suitable for construction castings having a frame and a lid or cover, such as manholes, grates, trench drains, hatches and the like, and construction castings incorporating the same. No tools are necessary to separate the joint. An enlarged head located on a cover fits into a socket located on a frame or adjacent lid. To separate the head from the socket, the lid is lifted to a substantially vertical position and turned about ninety degrees. The lid can then be lifted away from the socket. When the joint is used in manhole or hatch assemblies, a latch may be used to hold the cover open and the cover may be opened and closed with a lever.

Abstract: A joint suitable for construction castings having a frame and a lid or cover, such as manholes, grates, trench drains, hatches and the like, and construction castings incorporating the same. No tools are necessary to separate the joint. A ball head located on a lid fits into a socket located on a frame or adjacent lid. To separate the ball head from the socket, the lid is lifted to a substantially vertical position and turned about ninety degrees. The lid can then be lifted away from the socket. When the joint is used in manhole or hatch assemblies, a latch may be used to hold the cover open and the cover may be opened and closed with a lever.

Abstract: A shower cubicle comprises a stationary structure (1) and a movable structure (2). The movable structure (2) has a curved wall panel (10), a floor (11) and an upper member (12). A curved door (14) is pivotally hinged to the movable structure (2). The movable structure (2) is pivotally connected to the stationary structure (1) about axis Y1. The movable structure (2) can be moved from a standby or storage position in which the movable structure (2) is stowed inside the stationary structure (1) to an in-use position in which the movable structure (2) is pivoted outwardly from the stationary structure (1) to form a larger shower enclosure.

Abstract: A shower enclosure comprises a stationary structure (1) and a movable structure (2). The movable structure (2) has a curved wall panel (10), a floor (11) and an upper member (12). A curved door (14) is pivotally hinged to the movable structure (2). The movable structure (2) is pivotally connected to the stationary structure (1) about axis Y1. The movable structure (2) can be moved from a standby or storage position in which the movable structure (2) is stowed inside the stationary structure (1) to an in-use position in which the movable structure (2) is pivoted outwardly from the stationary structure (1) to form a larger shower enclosure.

Abstract: The present invention is directed to a concrete roof tile having a front edge surface, which is that surface of the tile across the width of the tile and which faces downwardly when in use on a roof. The front edge surface has a progressively greater depth as between a relatively thin profiled central portion and thicker profiled side portions. In use, the horizontal rows of the roof tiles are laid in half-bond relationship with adjacent horizontal rows to give a pleasing appearance in which the combined overlapped thicknesses of the tiles in one such row of tiles and the tiles of adjacent rows of tiles above and/or below at overlapped headlap and tail portions are the same or substantially the same.