{
  "$type": "site.standard.document",
  "description": "A spring brake actuator (10) is for braking a wheel of a vehicle. The spring brake actuator (10) has an axially elongated housing (12) having a parking brake chamber (34) and a service brake chamber (36); a main compression spring (54) in the parking brake chamber (34); a flexible diaphragm (38) in…",
  "path": "/patents/1421235",
  "publishedAt": "2022-07-27T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60T17/083",
    "TSE BRAKES INC [US]"
  ],
  "textContent": "A spring brake actuator (10) is for braking a wheel of a vehicle. The spring brake actuator (10) has an axially elongated housing (12) having a parking brake chamber (34) and a service brake chamber (36); a main compression spring (54) in the parking brake chamber (34); a flexible diaphragm (38) in the parking brake chamber (34); and a pressure plate in the parking brake chamber (34), the pressure plate (58) located axially between the main compression spring (54) and the flexible diaphragm (38). The flexible diaphragm (38) has a contoured portion (100) that inhibits radial shifting of the pressure plate (58) with respect to the flexible diaphragm (38).",
  "title": "SPRING BRAKE ACTUATOR"
}