Wabco Gmbh

Wabco Westinghouse Gmbh

Wabco Fahrzeugbremsen Gmbh

Friedrich Gross

Herbert Unger

Dieter Brehmer

Peter M Binder

Peter Homann

Wilfried Matthias

Guenther Meise

Horst Breidel

A screw and nut assembly comprises a screw having a hollow cavity extending longitudinally throughout, a nut configured to screw onto the screw, and an extension attached to the nut. The extension traverses the hollow cavity of the screw when the nut is placed on an end of the screw without being screwed on. The extension is displaced from the hollow cavity of the screw as the nut is screwed onto the screw. The status of the screw and nut connection may thus be determined from the screw side of the assembly, without observing the nut, by observing the extent to which the extension has emerged from the hollow cavity in the screw.

Screw and nut assembly

In a mixed medium brake system for a motor vehicle, there is provided a hydro-pneumatic brake cylinder device in a common housing having a compact configuration that is realized by designing the hydraulic piston in the form of a cylindrical plunger having a hollow cavity in the end adjacent the pneumatic piston, whereby engagement of the pneumatic piston push rod with the plunger is at a location thereof forward of the end adjacent the pneumatic piston, thus minimizing the distance required between the pneumatic piston and the hydraulic piston formed by the plunger. Such an arrangement also reduces the binding action of the cylindrical plunger in its guide bore for improved operation, while accommodating pivotal motion of said pneumatic piston.

Hydro-pneumatic brake cylinder device for motor vehicle brake systems

A bellows type sealing member for sealing off a piston rod opening formed at one end of an operating cylinder for accommodating reciprocal movement of a piston rod therein, in particular a diaphragm type cylinder for vehicle air-brake systems, wherein the piston rod has one end connected to a diaphragm disk and is provided at the other end with a forkhead, and the bellows can be sealingly fitted on a sleeve-like support member mounted coaxially in the piston rod opening of the diaphragm cylinder.

Bellows for sealing off the piston rod passage in an operating cylinder

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Seelze, Germany

Friedrich Gross