Abstract: A fan blade has a three dimensional shape that resembles a leaf. The blade is made of balsa or other suitable wood with the grain of the wood running along its length. The obverse surface of the blade is contoured and has a central vein and lateral veins running from the central vein to opposite edges. The reverse side has one or more channels. Braces are set in the channels. The braces are also made of balsa or comparable wood and their grain runs transverse to the direction of the gain of the blade.

Abstract: A table assembly structured for selective positioning between a conventional table orientation and a gaming orientation which facilitates the playing of the game of billiards thereon. A plurality of side rails are connected to an under portion of a table top of the table assembly and movable between a stored position and an operative position which respectively define the conventional and gaming orientations. When in the stored position, the plurality of side rails are disposed in a primarily hidden location in order to enhance the table's appearance. A positioning assembly includes a plurality of linkage structures movably supporting the plurality of side rails along a complex path of travel as the plurality of side rails move between the stored and operative positions.

Abstract: A process is provided for the removal of trace amount of aromatic hydrocarbons from a waste feed gas stream comprising sulfur compounds and the aromatic hydrocarbons. An adsorption process employing an adsorbent such as a high silica zeolite adsorbent having a framework silica to alumina ratio greater than about 15 and having a pore size greater than about 6.2 Angstroms is used to remove from the feed gas mixture aromatic hydrocarbon contaminants and permit the recovery of a high purity sulfur product from the treated effluent stream. The adsorption zone comprises at least 2 adsorption beds wherein one of the first adsorption beds is operating in an adsorption mode and the other is being regenerated at a desorption pressure higher than the adsorption pressure. The regeneration is performed in a closed system or partially closed system, and prior to returning a regenerated adsorption zone to adsorption conditions the waste feed gas stream is used to cool and purge the regenerated zone.

Abstract: An air hockey assembly including a playing table having a playing surface defined by two panel segments each having a hollow interior region and an outer planar surface. When the panel segments are joined together they define a conventionally dimensioned air hockey structure which includes an air supply assembly comprising a blower or like air source disposed in a location which does not interfere with the playing surface and does not prevent the playing table from being removably mounted on a preexisting support platform such as, but not limited, a pool table, gaming table or like support platform.