Abstract: A calibrated engine lubricant dispenser has a lubricant reservoir, which houses the engine lubricant where the lubricant is stored for dispensing. An existing engine fuel container is aligned with the dispenser. When the user activates the dispensing, a calibrated amount of engine lubricant is dispensed from the reservoir into the engine fuel container. The engine lubricant mixes with the engine fuel in the engine fuel container so that the proper proportion of engine lubricant versus engine fuel is obtained in the engine fuel container.

Abstract: A hydraulic disc brake for a vehicle comprising a rotatable disc adapted to be coupled to a wheel for rotation therewith and a frame having a pair of cylinders in which are located pistons for moving brake shoes toward the disc for engagement therewith when fluid is admitted to the cylinders. A flexible cup is slidably located in each cylinder between its piston and its rear end for forming a movable seal between the cup and the wall of the cylinder. The cup comprises a forward wall having an annular side wall extending rearward therefrom; a central hub spaced inward from the annular side wall; and a plurality of angularly spaced webs extending radially between the central hub and the annular side wall.