Abstract: A base for an umbrella and the like includes four legs set at substantially ninety degree angles with respect to one another and a tiltable umbrella pole receptacle. The four legs are restable upon a planar surface such as the ground or pavement. The legs are interconnected by tension rods whereby a first pair of adjacent legs are adjoined by a first tension rod, a second pair of adjacent legs are adjoined by a second tension rod, a third pair of adjacent legs are adjoined by a third tension rod, and a fourth pair of adjacent legs are adjoined by a fourth tension rod. The receptacle is pivotably mounted to the legs whereby the angle of the umbrella pole may be altered relative to the surface upon which the base is set at rest. The receptacle may be locked into a selected angle by a pair of adjustment rods fixed to two of the legs.

Abstract: A floor panel used in raised flooring systems is constructed to support an impinging load. The panel is supported at its corners and has a substantially flat upper surface and a lower surface comprised of hemispherical domes. The poles of the domes directly contact and support the upper panel. The domes are preferably flattened in the general vicinity of the poles to provide superior support to the upper panel. An arcuate trim members surrounds the panel and facilitates the assembly of the panel. The trim member creates a separating gap between panels, thereby facilitating their removal and replacement and creates a seal to prevent debris from entering between adjacent panels.

Abstract: A support pedestal assembly for a raised floor system can be used with metal panels or wood core panels, can be used with or without grid members, and can be used with brace members for resistance to vibration and seismic shock. The support pedestal assembly includes a pedestal base, a vertical, adjustable height support column coupled to the base, and a pedestal head coupled to the top of the support column. The pedestal head includes a center region for coupling to the support column and four arms, each having an aperture therethrough, extending outwardly from the center region. In one configuration, the arms form a 45 degree angle with the edges of the floor panel and a downwardly extending projection near the corner of the floor panel mates with the aperture in the arm to locate the panel on the pedestal assembly and to prevent horizontal movement. A floor panel corner locator can be mounted in the center region of the pedestal head for use in conjunction with the wood core floor panels.

Abstract: An insert assembly adapted to be imbedded within a concrete beam structure with portions exposed at a surface of the beam structure so as to allow equipment such as piping, conduit, cable supports and the like to be attached to the insert assembly and, thus, supported by the beam structure. The insert assembly includes a generally U-shaped channel section to which the aforementioned equipment may be secured, a plurality of pairs of anchor members attached to and extending upwardly from the channel section, and a plurality of spring members attached to and between the pairs of anchor members. In the construction of a concrete beam structure, the insert assembly is placed within and against the formwork for the concrete beam structure and an elongated reinforcing member such as a cable or rod is placed across the spring members. The reinforcing member is then placed under tension, causing the spring members to deflect downwardly whereby forces are directed downwardly toward the channel section and the formwork.

Abstract: A construction for a space frame system of the type wherein an upper chord frame and a lower chord frame structure are formed of a plurality of strut members connected to each other and held together by a plurality of connecting fixtures and web struts. The cord struts are of an improved form which adds to the structural strength of the space frame assembly. The struts are bent or otherwise formed into elongated channels which include a pair of outwardly and sidewardly projecting lip portions which are oriented in a plane substantially parallel to the channel bottom portion. The lip portions provide attachment surface portions which allow a great variety of mounting and support connections.

Abstract: A connector fixture for joining a first structural member to a second structural member. The second structural member includes a central bore and a pair of lug receiving apertures disposed at a predetermined distance on opposite sides of the central bore. The first structural member includes a central bore adapted to register with the central bore of the second structural member and in addition has a pair of outwardly extending lugs which register with and are received in the lug receiving apertures in the second structural member, thereby properly positioning the first and second structural members relative to each other. A connector, such as a bolt and nut, is then inserted through the central bore of the first and second structural members to clamp the members together.