Booster using a seal that also serves to set the position

Details Booster using a seal that also serves to set the position Booster using a seal that also serves to set the position

2005-01-18

2005-01-18

Look, Edward K. (Department: 3745)

Expansible chamber devices

With guide or seal on cylinder end portion for piston or...

Non-metallic seal means between piston or member and end...

C091S37600A

Reexamination Certificate

active

06843163

ABSTRACT:
A pneumatic brake booster comprising a rigid casing (10) locally shaped into a hollow shaft (3), a hub (5) slideably mounted in an opening (30) of the hollow shaft (3), an annular seal (6) inserted between the hub (5) and the hollow shaft (3), and members designed to set the hub (5) in a rest position with respect to the hollow shaft (3). The seal (6) comprises an elastomeric material (61) shaped into an annulus and an annular metal insert (62), the position-setting members (71, 72) being partially formed by the insert (62).

REFERENCES:
patent: 4793242 (1988-12-01), Kobayashi
patent: 4934249 (1990-06-01), Gautier et al.
patent: 5711202 (1998-01-01), Tsubouchi
patent: 6397724 (2002-06-01), Tsubouchi et al.

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