Abstract: A pivoting air chamber for a vehicle braking system includes a mounting bracket adapted to be attached to the vehicle. The air chamber includes an air chamber housing that is pivotally mounted to the mounting bracket. An actuator rod that is adapted to be attached to the vehicle braking system may be actuated so as to extend from and retract into the air chamber housing. The air chamber pivots with respect to the bracket, and thus the vehicle, when the actuator rod extends from or is retracted into the air chamber housing.

Abstract: A rotationally adjustable brake actuator includes a pressure housing with a circumferential rim, a non-pressure housing having a second circumferential rim, and a diaphragm disposed therebetween, where a retaining ring holds the respective housings against each other such that the first rim abuts the second rim, but where the respective housings are able to be rotated with respect to the other. Further, the retaining ring includes a radially-oriented hole and a stop pin that is inserted into the hole and engages the pressure housing to prevent further rotation.

Abstract: A brake chamber stroke indicator system for a brake system including a brake air chamber includes an indicator rod or a string pot gauge including a housing with an indicator rotatably positioned within the housing. A string has a first end attached to the indicator of the string pot gauge. A spring urges the indicator to rotate in a first direction whereby the string is retracted into the housing. The second end of the string is attached to a brake push rod or a pressure plate. The indicator rod is mounted by a base onto a pressure plate.

Abstract: A pneumatic actuator includes a housing defining a chamber. A diaphragm is positioned within the chamber. A rod member is attached to the diaphragm and is movable between a first position and a second position. A cam member is attached to the diaphragm and to the rod member. The cam member has a cam surface. A deflection rod has a first end portion and a second end portion, where the first end portion of the deflection rod is attached to the housing A follower is attached to the second end portion of the deflection rod. The follower engages the cam surface of the cam member so as to time the rod member towards the second position.

Abstract: A rotationally adjustable brake actuator includes a pressure housing with a circumferential rim, a non-pressure housing having a second circumferential rim, and a diaphragm disposed therebetween, where a retaining ring holds the respective housings against each other such that the first rim abuts the second rim, but where the respective housings are able to be rotated with respect to the other. Further, the retaining ring includes a radially-oriented hole and a stop pin that is inserted into the hole and engages the pressure housing to prevent further rotation.