Patent ID: 8826780

Claim:
A tool for use in combination with a filter cap having at least one of a radially extending ribbed engagement structure and a driven head engagement structure formed on an upper surface thereof, the tool comprising: a body having an upper end and a side wall extending from the upper end and terminating in a lower open end, the upper end being formed with a drive structure thereon, a plurality of engaging members each comprising an of surface defined by the side wall, a flat inner engagement surface, a pair of opposed side surfaces, and a curved segment defined by the lower end a beveled edge extending to the outer surface and a chamfered edge extending to flat inner engagement surface; the side surfaces of adjacent engaging members are parallel and define a plurality of notches extending upwardly from the lower open end, the notches extend from the flat inner engagement surface through the outer surface; the notches are configured to receive the ribbed engagement structure, and at inner surfaces of the engaging members are configured to matingly and non-rotatably receive the driven head engagement structure; and wherein the body is engagably disposed over at least one of the ribbed engagement structure and the driven head engagement structure of the filter cap, and the body together with the filter cap is rotated in a clockwise or counterclockwise direction.