Abstract: A horizontal trigger bar is centrally pivotally mounted on the top of a telescoping pole provided with conventional support bars from which an intravenous bottle is suspended. A clutch retains the pole at a length such that the bottle is at the desired height above a patient in a hospital bed. In the event the bed is raised and the trigger bar engages an overhead object, such as a light fixture, or a cubicle partition rail, the trigger bar will yield and assume either a lowered or a tilted attitude, thereby disengaging the clutch and allowing the pole to telescope downwardly to avoid damage to the equipment and possible harm to the patient.

Abstract: A star-shaped array of limbs projects radially outwardly from a central circular cylindrical hub in clamping engagement with an electrical plug. With the plug prongs inserted in the respective slots of an electrical wall outlet, the outer extremities of the radial limbs engage the surface of the underlying wall in the vicinity of the cover plate of the electrical outlet.The limbs are of sufficient length so that even though the electrical conductor connected to the plug is pulled laterally, the plug prongs are compelled to withdraw substantially axially from the outlet. The outer extremity of one or more of the limbs serves as a fulcrum about which the outlet guard tilts as plug withdrawal occurs, the radial distance from the plug axis to the fulcrum being such that only a minimal amount of lateral component is exerted on the plug prongs and outlet as the plug is withdrawn. Damage to plug and outlet is thereby eliminated despite misuse and negligent handling of the plug and conductor connected to the plug.