Abstract: A structure for supporting reinforcement bars includes a base, and first legs extending upwardly from the opposite sides of the base. Attached to shoulders of the first legs are first and second cradles, each having opposing sidewalls that form channels therebetween. Reinforcement bars inserted into the first and second cradles are retained within the channels by retaining members protruding from the opposing sidewalls. A first base support member spans a central opening in the base between the first legs. Second legs extend upwardly from the first base support member and connect to the cradles. Third and fourth legs extend upwardly from opposing ends of the base and connect to the cradles. The structure includes fillets at various points on the cradles, including fillets connecting the cradles to the shoulders of the first legs.

Abstract: A structure for supporting concrete reinforcement bars in an orthogonal relationship above a surface includes a base member having a central opening and first and second pairs of leg members extending upward at an angle from the base member on opposite sides of the central opening, wherein the first leg members are longer than the second leg members. Attached to shoulders of the first and second leg members are first and second cradles having opposing upper and lower sidewalls that form channels therebetween. The first and second cradles receive reinforcement bars that are retained within the cradles by retaining members protruding from the opposing sidewalls into the channels. A ridge extending from the base member has a central portion and first and second portions sloping down from the central portion toward the base member which form a channel for receiving a reinforcement bar.

Abstract: A structure is described for supporting concrete reinforcement bars in a concrete structure, such as a footer or foundation. The structure includes a base member having a lower surface and an opposing upper surface. A plurality of pairs of opposing first leg members extend upward from the upper surface of the base member. Each of the first leg members have a lower end connected to the base member and an upper end distally disposed from the lower end. The structure includes a plurality of cradles for receiving the reinforcement bars, where each cradle is attached to the upper ends of a corresponding pair of the opposing first leg members. In a preferred embodiment, the structure includes horizontal support members disposed between and connecting the cradles. To retain the reinforcement bars within the cradles, preferred embodiments of the structure include retaining members that protrude inward from the inner surfaces of the opposing sidewalls.

Abstract: A structure is described for supporting concrete reinforcement bars in a substantially orthogonal relationship above a surface. The structure includes a base member having a central opening. At least a pair of long leg members extend upward from the base member on opposite sides of the central opening. At least a pair of short leg members also extend upward from the base member on opposite sides of the central opening, where the short leg members are positioned at about 90 degrees about the central opening relative to the long leg members. Attached to the upper extremities of the long leg members are upper bar-support members having opposing sidewalls which together form a upper channel therebetween. Similarly, attached to the upper extremities of the short leg members are lower bar-support members having opposing sidewalls which together form a lower channel therebetween.

Abstract: Various arrangements of a bicycle carrier for transport by motorized vehicle include a particular type of clamping device for securely gripping the tire of a bicycle wheel mounted therein. The clamp comprises a pair of generally parallel, spaced-apart side panels adapted to receive a bicycle wheel and frictionally engage the tire when the panels are drawn together by a suitable closure, such as a bolt and nut combination. Theft protection is afforded by a padlock extending through holes in the two panels. In one arrangement, the clamp is stamped of sheet metal with the side panels being flexible enough to accommodate being drawn together by the adjustable closure. In another arrangement, the side panels are hinged to a base plate so that they can be pivoted into frictional engagement with the bicycle tire. The carrier mounts transversely on a longitudinal support member adapted for installation in the receiver portion of a conventional vehicle-mounted trailer hitch.