Neway Corp.

Lear Siegler Truck Products Corporation

Anchorlok Corp.

John P Bowyer

A brake actuating mechanism comprises a housing formed of facing shells with an elastomeric diaphragm suspended between them. A centrally disposed opening in the housing permits an actuating rod disposed within the housing to reciprocate through the opening. The diaphragm also has a centrally disposed opening. A pressure plate having a tubular section engages one side of the diaphragm. A spring is disposed between the pressure plate and the housing. The actuating rod extends through the opening in the diaphragm and is press-fit into the tubular section thereby simultaneously compressing the edge of the opening against the tubular section to form an airtight seal.

Spring brake actuator with an annular edge of a diaphragm sealed between

An air-operated diaphragm spring brake (10) is provided with a mounting means (16) which permits adjustment of the position of the pneumatic ports (30, 32) on the brake with respect to the vehicle. The mounting means (16) comprises a plate (84) mounted to an end section (88) of a housing (82) overlying a central aperture (90). A pair of threaded mounting studs (96) are fixedly secured to the plate (84) for mounting the plate to the vehicle.

Adjustable mounting apparatus for air-operated diaphragm brakes

An improvement in a conventional air-operated diaphragm spring brake is provided by a guide (100) being disposed in registry with an aperture (26) in a service brake housing (16). A push-rod (10) extends from a diaphragm (58) within the housing (12) through the bushing (102) to pivotably connect to a slack adjuster (6). The bushing (102) serves to maintain the push-rod (10) at a preselected angle relative to the slack adjuster (6) when the push-rod is in the inoperative position.

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Muskegon, MI, United States of America

John P Bowyer