Abstract: A drill pipe/casing protector is mounted on a length of drill pipe adjacent to the tool joint of a length of rotary drill pipe that rotates within a well bore or a casing cemented in a well bore in which drilling operations are conducted. The drill pipe/casing protector comprises a protective sleeve preferably made from a compressible material secured to the exterior of the drill pipe to rotate with the drill pipe during normal drilling operations and to contact the casing and thereby prevent damaging contact between the rotary drill pipe and the casing. The sleeve rotates with the drill pipe during normal drilling operations in which there is an absence of contact between the sleeve and the casing, but the sleeve stops rotating or rotates very slowly while allowing the drill pipe to continue rotating within the sleeve upon frictional contact between the sleeve and the casing.

Abstract: A system for mounting storage cabinets and the like to a vertical frame comprises a mounting clip that has a plurality of notched angled connectors. The angled connectors are designed to engage cooperating slots in the vertical frame. The angled nature of the connectors requires that the cabinet be moved in three steps to engage the plates and notches with the vertical frame, thereby reducing the risk of the cabinet becoming accidentally dislodged from the frame.

Abstract: A cord manager is used in conjunction with a vertical wall panel in an office or other work place. The cord manager comprises an elongated channel adapted to removably interfit with a cooperating slot in the wall panel. The wall panel slot has an interior chamber and a restricted passageway leading to the chamber. The channel has a generally S-shaped section with a first reverse bend that fits within the slot passageway and a second reverse bend that is captured within the slot chamber. The channel S-shaped section connects to a U-shaped section that has a free end that abuts the structure, thereby forming an enclosed raceway outside the panel for enclosing electrical wires.

Abstract: A heavy duty folding table has a pair of pedestal legs, the upper ends of each leg being pivotally joined to a pair of links. The links in turn are pivotally mounted to the table frame. To each leg is attached a T-shaped brace. The leg portion of the brace is pivotally connected to a pedestal leg. The cross pieces of the braces extend between the table frame and are pivotally attached thereto. The two pedestal legs are independently foldable and unfoldable by one person. When in the folded condition, the T-shaped braces lie parallel to and between the table top and pedestal legs.

Abstract: A folding table assembly includes enclosed gaseous power cylinders for assisting the folding and unfolding operations. The cylinders are mounted to the supporting legs so that their weights are not added to that of the table members to be lifted. The cylinders exert constant forces tending to fold the table, and they provide cushions to resist the table weight during the unfolding operation.