Pneumatic servomotor comprising a diaphragm and/or a joint which is overmoulded onto the skirt
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United States of America Patent
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-
Aug 14, 2007
Grant Date -
Sep 28, 2006
app pub date -
May 19, 2004
filing date -
May 22, 2003
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A pneumatic servomotor (12) for an assisted braking having a rigid axial casing (16) with a movable substantially truncated-cone shaped transverse skirt (18) that is integral with a piston (20) for the actuation of an associated master cylinder (14) that defines two pressure chambers (24, 26) inside the casing. A substantially annular sealing diaphragm (30) made of an elastomeric material is interposed between the casing (16) and an outer peripheral area (32) of the skirt (18) has a substantially annular seal (34) made of an elastomeric material is interposed between an inner area of the skirt (18) and the piston (20). The sealing diaphragm (30) and the seal (34) have a portion that is moulded over the skirt (18).
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