Abstract: An anti-rotation clip for preventing rotation of a nut-like member (nut or bolt head) of a flanged connection to facilitate tightening or loosening of the nut-like member and eliminate the need to use two wrenches for tightening or loosening a nut or bolt. The clip is a generally L-shaped member having a horizontal portion and a vertical portion at one end thereof extending generally perpendicular thereto. A polygonal opening extending vertically through the horizontal portion has a plurality of discrete angled sides configured to surround and engage the sides of the nut-like member.

Abstract: A protector for protecting the mating plug and socket of connected electrical cords from damage and contamination and which allows quick disconnection of the plug and socket in an isolated chamber. The protector has a tubular housing formed of high impact plastic, preferably transparent, which surrounds the mating plug and socket members of connected electrical cords and resilient end plugs which are slidably received on the cords rearwardly of the plug and socket. The end plugs have a longitudinal slit extending radially from a central longitudinal bore and are installed by pressing them laterally onto the cords then sliding them axially on the cords to press them into the open ends of the tubular housing. When pressed into the ends of the housing, the end plugs define a central chamber surrounding the plug and socket connection and form a seal at the opposed ends of the chamber between the housing and the exterior of the cords.