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US 10,889,280 B2Granted
Spring brake actuator with diaphragm retainer
AssigneeHaldex Brake Products AB
InventorsRobert L. Koelzer, Albert D. Fisher, Aaron C. Bradford, David C. Rhoads, Michael R. Jenkins
Life of this patent
Estimating the term…
Abstract
A brake actuator assembly including a pressure plate presenting an opening, a push rod that is coupled to the pressure plate, a diaphragm that is coupled to the pressure plate, and a retainer that engages the push rod. The push rod has an outer surface and at least one protrusion extending outward from the outer surface. The retainer engages the protrusion such that at least a portion of the diaphragm is positioned between the pressure plate and the retainer.
Claims16
A brake actuator assembly comprising:
- a pressure plate presenting an opening;
- a push rod comprising a first end and a second end, the push rod coupled to the pressure plate at the first end, wherein the push rod comprises an outer surface and at least one protrusion extending outward from the outer surface;
- a diaphragm that is coupled to the pressure plate;
- and
- a retainer that engages the protrusion, wherein at least a portion of the diaphragm is positioned between the pressure plate and the retainer, the retainer presenting a retainer opening that receives a portion of the push rod, wherein the outer surface of the push rod at the first end has an outer diameter that is less than an inner diameter of the retainer opening.
2 more elements
A brake actuator assembly comprising:
- a pressure plate presenting an opening;
- a push rod that is coupled to the pressure plate, wherein the push rod comprises an outer surface and at least one protrusion extending outward from the outer surface;
- a bearing that is coupled to the push rod, and wherein at least a portion of the bearing is received within the push rod, wherein an end of the push rod is swaged between the bearing and the pressure plate;
- a diaphragm that is coupled to the pressure plate;
- and
- a retainer that engages the protrusion, wherein at least a portion of the diaphragm is positioned between the pressure plate and the retainer.
3 more elements
Dependencies are inferred from the claim text.