Abstract: A bollard assembly is formed from a bollard that resides in a tubular socket. The socket has an internal core that is separated from the tube walls by annular recess. The lower end of the bollard is received within the recess. Lifting elements inside the bollard engage the upper surface of the core, and are internally biased in favor of extension. A locking system prevents extension of the lifting elements. When the locking system is unlocked, the pressure of the lifting elements against the core causes the bollard to rise out of and slightly above the socket, without external assistance. Once raised, the bollard may easily be removed from the site of the socket.

Abstract: A connector is formed from a hollow barrel, an elongate pin and a hook. A pair of parallel channels are formed in one end of the barrel. The pin has an enlarged head and an attached shaft that extends through both the barrel and the base of the hook. The pin and the hook rotate as a unit. Such rotation causes the head of the pin to either block or open the channels. Two parallel strands of a sheet of infill material are received in the channels while open, and the pin rotated until the head blocks the channels, thereby capturing the strands. This rotation concurrently brings a concave portion of the hook into a position aligned with and facing a nearby post. A nut is tightened on the end of the shaft in order to firmly join the connector, sheet and post.

Abstract: A barrier is formed from a framework of posts and rails. Infill sections cover openings in the framework. Post brackets connect posts to rails. Each post bracket includes a collar and an attached holder. The collar is positioned over a post and lowered to a level where a rail is to be attached. The rail is secured within the holder. The holder and the collar are relatively rotatable. Adjacent rails in the barrier are interconnected end-to-end by adapters plugged into the hollow end of each rail. The adapters overlap, and are pinned together, permitting relative rotation between rails. Relative rotation of components permits barrier slope adjustment. Exposed vertical lateral edges of infill sections are covered by an elongate edge protection band having a central ridge and a pair of side recesses. An exposed edge portion of an infill section is received within the recess and clamped against the framework.

Abstract: A barrier is formed from one or more intermediate posts situated between a pair of end posts. Long flexible cables interconnect the end posts and extend adjacent each intermediate post. Each cable is wrapped one or more times around each post. End posts may include dual columns that permit cable windings around both columns. A spike embedded within the end of each cable enhances the purchase that can be gained by a clamp that presses the cable against the end post. The clamp has contact elements with converging side walls that grip the cable near the spike. To maintain the spike in place, a wire rope clip grips the cable over a constriction in its contained spike. Each cable is enclosed by a cable cover extending between adjacent posts. The cable cover is suspended at each post by a pair of tiltable hangers.

Abstract: A barrier, such as fence panel, is formed from a plurality of channel-shaped rails and plurality of upright members. Each upright member traverses the rail channels of the rails forming the barrier and is mechanically connected to the rail, such that the upright member is selectively tiltable with respect to the rail within an angular adjustment range. The mechanical connection between rail and upright member may be formed by a weld, such as a resistance weld, by a permanent adhesive, or with a fastener such as bolt or screw. A tab that extends from the rail web may be used to connect a rail to an upright member. The tab may depend from a bracket installed within the rail channel, or may be cut out and bent into the channel from the web. The tab is rotatable about an axis situated at or adjacent the web.

Abstract: A barrier, such as fence panel, is formed from a plurality of channel-shaped rails and plurality of upright members. Each upright member traverses the rail channels of the rails forming the barrier and is mechanically connected to the rail, such that the upright member is selectively tiltable with respect to the rail within an angular adjustment range. The mechanical connection between rail and upright member may be formed by a weld, such as a resistance weld, by a permanent adhesive, or with a fastener such as bolt or screw. A tab that extends from the rail web may be used to connect a rail to an upright member. The tab may depend from a bracket installed within the rail channel, or may be cut out and bent into the channel from the web. The tab is rotatable about an axis situated at or adjacent the web.

Abstract: A gate assembly is formed from a gate attached by hinges to a frame. A pair of L-shaped brackets are attached to the outer sides of the frame. The brackets are in turn attached to a pair of gate posts in a barrier. Bolt holes formed in the header section of the frame receive removable eye bolts that may be used as hoisting points as the frame is being positioned within a barrier. To maintain the shape of the frame during such positioning, a removable sill section is included in the base of the frame. The first upright section of the frame defines an unobstructed internal channel bounded by input and output portals. A cable may pass though the channel and into the gate by way of the output portal. Window openings in the gate may be fitted with removable window panels containing pickets and infill material. Dual gates may be positioned within an enlarged frame, and a removable mullion post positioned between the gates and supported by the frame.

Abstract: A gate assembly is formed from a gate attached by hinges to a jamb. A pair of L-shaped brackets are attached to the outer sides of the jamb. The brackets are in turn attached to a pair of gate posts in a barrier. Bolt holes formed in the header section of the jamb receive removable eye bolts that may be used as hoisting points as the jamb is being positioned within a barrier. To maintain the shape of the jamb during such positioning, a removable sill section is included in the base of the jamb. The first upright section of the jamb defines an unobstructed internal channel bounded by input and output portals. A cable may pass though the channel and into the gate by way of the output portal. Window openings in the gate may be fitted with removable window panels containing pickets and infill material. Dual gates may be positioned within an enlarged jamb, and a removable mullion post positioned between the gates and supported by the jamb.

Abstract: A connector assembly is used to attach the end of a horizontal rail to the supporting vertical post of a barrier. A flat platform is secured to the side wall of the post. A channel-shaped bracket having a convex base is seated within a concavity formed in the platform. A convex retainer is seated within the concave base of the bracket channel. A bolt extends through aligned openings formed in each of the platform, bracket and retainer. The bolt also extends through aligned openings in the post. The end of a rail is installed within the bracket channel, and held in place by a bolt. An elongate opening formed in the bracket base allows the bracket to swivel horizontally to a desired angular position. The bracket permits a single post to support adjacent sections of a barrier that intersect at a non-straight angle.

Abstract: A barrier framework is formed from vertical posts and horizontal rails. Infill sections cover major openings in the barrier framework. Elongate junction elements overlay each rail and join adjacent infill sections. Edges of the infill sections fit within channels formed in the junction elements. Each junction element has an H-shaped cross-sectional profile, with the arms on one side shorter than those on the other. A cover element encloses the shorter arms of each junction element and clamps infill material against the longer arms.

Abstract: Structural components of a barrier, including posts, rails and pickets, are formed from a conductive substrate that is encased in a corrosion-resistant nonconductive coating. These structural components are assembled by aligning fastener openings in a pair of components, and joining the paired components with a conductive bolt. The shank of the bolt has an enlarged section of peripheral longitudinal ridges that forms an interference fit within each of the aligned fastener openings. Forming this interference fit abrades away the nonconductive coating within the openings, and allows the shank to form a conductive link between the joined structural components.

Abstract: A barrier, such as fence panel, is formed from a plurality of channel-shaped rails and plurality of upright members. Each upright member traverses the rail channels of the rails forming the barrier and is mechanically connected to the rail, such that the upright member is selectively tiltable with respect to the rail within an angular adjustment range. The mechanical connection between rail and upright member may be formed by a weld, such as a resistance weld, by a permanent adhesive, or with a fastener such as bolt or screw. A tab that extends from the rail web may be used to connect a rail to an upright member. The tab may depend from a bracket installed within the rail channel, or may be cut out and bent into the channel from the web. The tab is rotatable about an axis situated at or adjacent the web.

Abstract: A barrier, such as fence panel, is formed from a plurality of channel-shaped rails and plurality of upright members. Each upright member traverses the rail channels of the rails forming the barrier and is mechanically connected to the rail, such that the upright member is selectively tiltable with respect to the rail within an angular adjustment range. The mechanical connection between rail and upright member may be formed by a weld, such as a resistance weld, by a permanent adhesive, or with a fastener such as bolt or screw. A tab that extends from the rail web may be used to connect a rail to an upright member. The tab may depend from a bracket installed within the rail channel, or may be cut out and bent into the channel from the web. The tab is rotatable about an axis situated at or adjacent the web.

Abstract: A barrier is formed from a plurality of posts and a plurality of rails. Each post has an I-shaped cross section, with a pair of double-walled flanges separated by a single-walled web. Each rail is a channel-shaped member having an intermediate portion and opposed end portions. Each end portion has a rounded convex edge. The intermediate portion includes a flat section to which pickets or a fencing fabric may be attached. Each end portion also includes a flat section, which is recessed relative to the flat section of the intermediate portion. A rail is connected to a post by inserting the rail's end portion into the channel-shaped region of the post. The flat section of the rail's end portion engages the planar inner side of one of the post's flanges. Fasteners are inserted into aligned openings in the flange and the flat section to connect the rail to the post. When assembled, the post flanges and the flat section of the intermediate portion of the rail are coplanar.