Pneumatic operating unit for compressed-air brakes

Details Pneumatic operating unit for compressed-air brakes Pneumatic operating unit for compressed-air brakes

2005-01-25

2005-01-25

Williams, Thomas (Department: 3683)

Fluid-pressure and analogous brake systems

Speed-controlled

Having a valve system responsive to a wheel lock signal

C303S127000

Reexamination Certificate

active

06846048

ABSTRACT:
The invention relates to a pneumatic operating unit for compressed air brakes including a housing having at least one exterior compressed air connection device and at least one air-carrying connection. The operating unit further includes at least one piston, at least one piston rod, at least one valve body, at least one valve seat and at least one cylinder body fitted into the housing. The at least one cylinder body has at least one transverse connection and includes one or more of the at least one piston, valve seat and body. The at least one cylinder body also includes a seal in an axial direction between two transverse connections with respect to the housing so that the transverse connections are sealed off with respect to one another.

REFERENCES:
patent: 4017125 (1977-04-01), Durling
patent: 4724859 (1988-02-01), Nakao et al.
patent: 5146952 (1992-09-01), Tamamori
patent: DT 23 39 397 (1977-12-01), None
patent: 1442389 (1965-04-01), None
patent: 1540693 (1967-10-01), None
patent: 1 453 715 (1973-07-01), None

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