Abstract: A method for multi-layer electrodeposition in a single bath is also provided. A substrate is immersed in a bath. An electrodeposition operation is initiated for depositing a first layer of material on the substrate. The electrodeposition operation includes agitating the bath and applying current pulses. The electrodeposition operation is later altered for depositing a second layer of material on the first layer, where the second layer is of a different composition than the first layer. In the altered mode, the current density is changed for altering a composition of material deposited on the substrate, the duration and/or frequency of the current pulses are altered, and the bath is agitated at a different rate of agitation.

Abstract: A brake booster having a housing is separated into a first chamber and a second chamber by a wall connected to a hub. The hub has a cylindrical body with an axial bore that retains a control valve for sequentially connecting the first chamber with the second chamber to provide for the equalization of fluid pressure therein to define a first mode of operation and interrupting communication between the first and second chambers while connecting the second chamber to a surrounding environment to allow air to enter into the second chamber and create a pressure differential across the wall to defining a second mode of operation. The pressure differential acts on the wall to develop an output force that pressurize fluid to effect a brake application. The brake booster is characterized by a first input member responsive to a manual input and a second input member responsive to an ECU for moving the control valve from the first mode to the second mode to respectively develop first and second brake applications.

Abstract: A method for multi-layer electrodeposition in a single bath is also provided. A substrate is immersed in a bath. An electrodeposition operation is initiated for depositing a first layer of material on the substrate. The electrodeposition operation includes agitating the bath and applying current pulses. The electrodeposition operation is later altered for depositing a second layer of material on the first layer, where the second layer is of a different composition than the first layer. In the altered mode, the current density is changed for altering a composition of material deposited on the substrate, the duration and/or frequency of the current pulses are altered, and the bath is agitated at a different rate of agitation.

Abstract: An impact hammer having a non-mechanical connection between the driving piston rod and the impact ram. The non-mechanical connection includes an annular body portion connected to the lower end of the piston rod which is received in a cavity in the top surface of the impact ram, and an elastomeric ring is held in facing grooves in the cavity and the annular body member to constitute the sole connecting element between the piston rod and the impact ram.

Abstract: A pile driver operated by a pressure supply of compressible fluid has a cushioning fluid chamber for transmitting the driving pulses to a pile. Both the cushioning chamber and the working chambers for generating the driving pulses are connected to an enclosed space from which the exhaust flow of fluid is able to escape by way of muffler means. The cushioning chamber draws in air at or near atmospheric pressure by way of said space which is in permanent communication with the exterior through the muffler means.