Abstract: A method of manufacturing a push rod from a length of tube having a first end and a second end. The tube is held in a first fixture and a first tool is brought into engagement with the first end while a force is applied to deform the first end into a cone. A disc is thereafter affixed to the cone through a welding process. The tube with the disc attached is moved to a second fixture and a threaded shaft is partially inserted into the tube adjacent the second end. A radial force is applied to the tube that causes the tube to be compressed into engagement with the threaded shaft. The threaded shaft is then rotated causing its translation within the tube to establish a desired length between a face on the disc and a head on the threaded shaft to complete the manufacture of the push rod.

Abstract: A first and second tie rods locating between a front shell and a rear shell of a brake booster through which a master cylinder is connected to a support member. Each of the first and second tie rods have a head that engages the rear shell and a first shaft that extends from the head in a first direction along a first axis through the front shell and the flange and a second shaft that extends from the head in a second direction offset from the first shaft along a second axis through the rear shell and the support member. Fasteners are secured to the first, second, third and fourth shafts such that the front shell and rear shell are compressed between the flange and support member and forces are transmitted into the support member without creating a moment that would change the axial alignment of the first and third shafts.

Abstract: The present invention provides a carbon black for coloring cement excelling in dispersibility in cement slurry, exhibiting superior adhesion to a cement matrix, and excelling in coloring characteristics and strength, and a method for coloring a cement-formed product using the carbon black. The carbon black for coloring cement is a carbon black in which humic acids are adsorbed on the surface by a surface treatment using an aqueous solution in which the humic acids are dissolved. The carbon black is preferably a carbon black on which humic acids are adsorbed by wet-granulation and drying using an aqueous solution in which the humic acids are dissolved as granulation water. The coloring method includes adding and mixing a water suspension in which carbon black, on which the humic acids are adsorbed, is dispersed in water with cement slurry, or directly adding and mixing carbon black on which the humic acids are adsorbed with the cement slurry, thereby coloring a cement-formed product.

Abstract: A movable wall for separating an interior of a housing for a brake booster into a first chamber and a second chamber. The movable wall is characterized by a diaphragm, a backing plate and a hub member. The diaphragm has a peripheral bead secured to the housing and an axial bead located in a groove in a cylindrical body of the hub member. The groove has a front face that is separated from a rear face by an arcuate transition surface located between a bottom of the groove and the front face. The axial bead has a profile corresponding to the groove and an arcuate lip that extends from a rear surface. The lip is connected by a convolute to a radial section of the disc portion of the diaphragm while the backing plate has an axial opening surrounded by a radial surface that engages the front face of the groove. The axial bead engages the radial surface to urge the radial annular surface into engagement with the front face of the groove while sealing the front chamber from the rear chamber.

Abstract: A movable wall for separating an interior of a housing for a brake booster into a first chamber and a second chamber. The movable wall is characterized by a diaphragm, a backing plate and a hub member. The diaphragm has a peripheral bead secured to the housing and an axial bead located in a groove in a cylindrical body of the hub member. The groove has a front face that is separated from a rear face by an arcuate transition surface located between a bottom of the groove and the front face. The axial bead has a profile corresponding to the groove and an arcuate lip that extends from a rear surface. The lip is connected by a convolute to a radial section of the disc portion of the diaphragm while the backing plate has an axial opening surrounded by a radial surface that engages the front face of the groove. The axial bead engages the radial surface to urge the radial annular surface into engagement with the front face of the groove while sealing the front chamber from the rear chamber.

Abstract: A brake booster (10) having a housing defined by joining a substantially circular first shell (12) to a second shell (14) to compress a first bead (100,200) on a diaphragm (102,202) secured to a movable wall (76) and seal an interior thereof from the surrounding environment. The movable wall (76) includes a hub (44) with a disc (74) having an annular groove (70) located adjacent a peripheral surface (72) for receiving a second bead (104,204) on the diaphragm (102,202). The diaphragm (102,202) is characterized by a resulting cylindrical body (116,216) with a first section (215) that transitions from the first bead (100,200) and a second section (217) that transitions from the second bead (104,204). The first (100,200) and second (104,204) beads each have an initial oval shape that is stretched into a circular shape for respective retention between the first (12) and second (14) shells and annular groove (70) in sealing a front chamber (50) from a rear chamber (52).

Abstract: A brake booster (10) having a housing defined by joining a substantially circular first shell (12) to a second shell (14) to compress a first bead (100,200) on a diaphragm (102,202) secured to a movable wall (76) and seal an interior thereof from the surrounding environment. The movable wall (76) includes a hub (44) with a disc (74) having an annular groove (70) located adjacent a peripheral surface (72) for receiving a second bead (104,204) on the diaphragm (102,202). The diaphragm (102,202) is characterized by a resulting cylindrical body (116,216) with a first section (215) that transitions from the first bead (100,200) and a second section (217) that transitions from the second bead (104,204). The first (100,200) and second (104,204) beads each have an initial oval shape that is stretched into a circular shape for respective retention between the first (12) and second (14) shells and annular groove (70) in sealing a front chamber (50) from a rear chamber (52).

Abstract: A roller type clutch mechanism comprises an outer race, an inner race radially spaced apart from the outer race and concentrically disposed in the outer race for relative rotation, a plurality of rollers disposed between the outer race and the inner race for transmitting torque between the outer race and the inner race, a spring member for biasing the rollers in one rotational direction, and a cage disposed between the rollers to keep the rollers at substantially equal intervals, and engaged with the spring member to bias the rollers in a meshing direction.

Abstract: A one-way clutch having a lock-up function, comprises an outer race, an inner race radially spaced apart from the outer race and disposed within the outer race concentrically for relative rotation, a cam surface provided on an inner peripheral surface of the outer race or an outer peipheral surface of the inner race, a track surface provided on the outer peripheral surface of the inner race or the inner peripheral surface of the outer race in a confronting relationship to the cam surface, a plurality of roller members disposed between the outer race and the inner race and adapted to transmit torque between the outer race and the inner race, springs for biasing the roller members toward one circumferential direction, a side plate for holding the roller members and the springs with predetermined intervals along a circumferential direction, and a control member for acting on the roller members to effect lock-up control, and wherein the control member controls the one-way clutch to lock up the one-way clutch in b