Abstract: A disc brake has a hydraulic parking brake actuator. A parking brake piston is advanced upon actuation to close a parking brake valve, sealing hydraulic fluid in the service pressure actuating chamber. Further advancing movement of the parking brake piston generates hydraulic pressure in the actuating chamber and engages the brake. Increased pressure in the actuating chamber also increases the sealing force on the valve controlling the sealing of the pressure chamber. The parking brake mode may also be obtained while hydraulic service brake pressure exists in the actuating chamber by moving the parking brake piston sufficiently to close the parking brake valve, trapping pressurized hydraulic fluid in the actuating chamber and holding the brake in the actuated condition. This pressure may be further increased, if desirable, by further advancing movement of the parking brake piston to further increase the pressure.

Abstract: The mounting for a motor-pump housing in the bottom opening of a dishwasher chamber consisting of a one-piece elastomer sleeve formed by a large diameter radially outwardly directed top gasket portion, a frusto-conical medial portion and a smaller diameter bottom cylindrical portion. The sleeve medial portion defines with the pump housing a sump for receiving and directing water exiting the chamber and wherein the medial portion is free to flex to substantially obviate the transmission of vibrational energy to the dishwasher casing.

Abstract: A float support includes a guide sleeve extending upwardly from a dishwasher chamber sump for slidable reception of a float stem. The support includes a hollow standpipe having an upper portion, partially defined by an external wall of the guide sleeve along part of its axial height, and a lower portion extending down through the sump in an offset manner. The inverted cuplike float includes a plurality of cavities at least one of which is adapted to entrap air to provide buoyance to the float. A remaining one of the cavities defines a combined float damping and overflow cavity which conceals the upper portion of the hollow standpipe such that the standpipe establishes an air break path between the overflow cavity and atmosphere thereby damping the vertical travel of the float.

Abstract: An improved float assembly for a dishwasher liquid fill system includes cam means on the float stem. The cam includes a first portion operative, upon the liquid rising to its normal fill level, to maintain a switch in its circuit closing position allowing the fill valve to be opened at selected intervals during the operational cycle. Upon the float being buoyed upwardly by the liquid level rising above its normal-fill level to an over-fill level the cam means is operative to retain the float at an elevated position permitting the dishwasher to complete its operational cycle after which the float may be manually reset to its lower position to again permit normal operation of the dishwasher.

Abstract: A dishwasher has a unitary spray and deflector disc member in spaced relation with its wash chamber top wall of a diameter so as to extend a sufficient distance across the chamber to intercept upwardly directed sprays of water. A diametrical spray conduit is incorporated with the disc including inlet means for accepting water from a top wall feed line for flow into two radial discharge streams to maintain the conduit full of water while exiting spray port means at each end of the conduit cause rotation of the disc. The water entering the disc inlet means and exiting the spray port means imparts stability to the disc to reduce the sound level within the chamber caused by impinging sprays thereon.