Piston unit having a captive spring

Details Piston unit having a captive spring Piston unit having a captive spring

2006-09-05

2006-09-05

Look, Edward K. (Department: 3745)

Power plants

Pressure fluid source and motor

Pulsator

C092S131000

Reexamination Certificate

active

07100374

ABSTRACT:
The invention relates to a piston unit having a captive spring for a cylinder, particularly for a tandem master cylinder of a motor vehicle, wherein the spring, with a first end, is supported at least indirectly on a piston and, with a second end, is supported on a retaining device that can be displaced relative to the piston, and the movement of the retaining device relative to the piston is limited by securing means.The invention is characterized in that the securing means have a projection, which is mounted in a non-detachable manner on the piston and whose free end is provided with a stop that limits the movement of the retaining device relative to the piston.

REFERENCES:
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International Search Report of Application No. PCT/EP03/02723 dated Jun. 17, 2003.
German Search Report of Application No. 102 12 539.2 dated Jul. 3, 2003.

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