Abstract: A wall system for clean rooms employs an elongated framing member having four channels each with a thread slot in the bottom of the channel. This four channel arrangement facilitates the concealment of the fasteners and brackets used to join framing members to one another.

Abstract: A load support system includes a support beam. The support beam extends along a longitudinal axis and has two outwardly facing generally U-shaped framing channels separated by a web. The ratio of the depth of at least one framing channel to the height of said web is approximately 2. A support beam with at least one of the framing channels having this ratio has several advantages. It is stronger and provides for a larger variety of attachment devices to be inserted. Further, when used with respect to various channel support systems, additional support is provided under certain loading conditions.

Abstract: A load supporting structure includes a support beam and a lateral brace. The support beam extends along a longitudinal axis and has two outwardly facing side channels. Each side channel is defined by two flanks and a web. Apertures in the web permit the braces to be secured to the support beam. The structure of the support beam and side channels provide a versatile and secure system that may be supported from a vertical upper location.

Abstract: A non-progressive modular partition wall assembly has particular advantages for use in a clean room. The assembly includes several basic elongated framing members which may be modified for a variety of uses. The modular partition wall assembly may be constructed into different orientations and with different types of wall systems. Modifications are possible without major wall reconstruction. The framing members include an open channel with receptor arms for receiving mounting means such as nut and bolt combinations. A disclosed framing member has both an open and a closed face, and a fence extending outwardly from an outer surface of the closed face. The fence and outer surface define a sill to receive an edge of a panel. The fence may be removed if full facial contact between the inner surface of the panel and outer surface of the closed face of the framing member is desired. Various retainers may be used to secure a panel to a framing member.

Abstract: A versatile framing system incorporates open channel members and closed tubular members. The closed tubular members provide strength, while the open channel member allows various members to be attached at an infinite number of positions along its length. The inventive system thus successfully incorporates the advantages of both open channel members and closed tubular members.

Abstract: An elevated flooring system including a plurality of panels supported above a base floor is disclosed. Each panel is constructed of a substantially flat upper member and a lower member which includes a plurality of interconnected hemispherical domes. A dome pole directly contacts and supports the upper member. Each dome is interconnected to at least two other domes by a connecting rib. The plurality of ribs creates an internal rigid structure which provides additional support and stability within the floor panel.

Abstract: A versatile framing system incorporates open channel members and closed tubular members. The closed tubular members provide strength, while the open channel member allows various members to be attached at an infinite number of positions along its length. The inventive system thus successfully incorporates the advantages of both open channel members and closed tubular members.

Abstract: A breakaway coupling to be interposed between a ground mounting post and a support post carrying a highway sign, barricade or similar highway appurtenance. The coupling has a horizontal plate on a pedestal which attaches to the mounting post and a horizontal plate on a support post mounting member which attaches to the support post. Bolts normally holding the plates together release upon vehicular impact. Use of a novel plate configuration, a gasket and roller cams enhance the structure.

Abstract: A cantilevered shelf support for installation on a vertically extending channel having a face containing a longitudinally extending slot bordered by inwardly projecting flanges. The shelf support has a mounting bracket which is aligned and bolted to the vertical channel. A support bracket having a horizontally shelf engaging surface is aligned and assembled to the mounting plate without further hardware.

Abstract: A fastener for use in attaching structural channel members having slots extending along one side of the channel to other channel members or other structural elements. The fastener includes retaining means for holding the fastener in a selected position along the channel slot ready to receive a fastening bolt or the like for connecting the channel member to an additional structural member. The retaining means is designed so that during connection of the structural members the retaining means will be displaced and direct contact between the structural members being attached will be achieved.

Abstract: A unitary connection assembly for connecting channel structures is described. The assembly has a special channel fastener coacting with a fixture, a biasing member and a threaded member. A method is described for attaching the unitary connection assembly to a channel.

Abstract: A modular frame structure having a cooperating strut coupling and a connection node coupling which permits quick assembly and release. A method is presented for preassembly of the node couplings to the connection nodes to hasten field assembly. A method is also provided for connecting a strut to connection nodes which are fixed in space by the portion of the frame structure already assembled.

Abstract: A special nut is used for affixing parts to a channeled structural member. The nut has an improved positioning means protruding from the top surface of the nut for properly positioning the nut in the channel member.

Abstract: A roof rack for a motor vehicle, the roof rack has a roof bar to extend transverse of the vehicle and a mounting assembly to secure the roof bar to the roof gutter of the vehicle, a mounting assembly secures the roof rack to the gutter by means of a gutter clamp which is moved both transverse of the vehicle and vertically relative to the gutter.