Pneumatic servomotor comprising a diaphragm and/or a joint...

Details Pneumatic servomotor comprising a diaphragm and/or a joint... Pneumatic servomotor comprising a diaphragm and/or a joint...

2007-08-14

2007-08-14

Kershteyn, Igor (Department: 3745)

Motors: expansible chamber type

Working member position feedback to motive fluid control

Follower type

C092S09800R

Reexamination Certificate

active

10556755

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).

REFERENCES:
patent: 3385167 (1968-05-01), Wilson et al.
patent: 3387540 (1968-06-01), Wilson
patent: 4393749 (1983-07-01), Miyazaki
patent: 5027693 (1991-07-01), Wilkinson
patent: 5881627 (1999-03-01), Simon Bacardit
patent: 41 21 745 (1993-07-01), None
patent: 2 801 857 (2001-06-01), None

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