Rotary expansible chamber devices – Non-metallic working member – cylinder or partition
Reexamination Certificate
2007-03-26
2010-11-09
Trieu, Theresa (Department: 3748)
Rotary expansible chamber devices
Non-metallic working member, cylinder or partition
C418S045000, C418S153000, C417S474000, C417S476000
Reexamination Certificate
active
07828534
ABSTRACT:
A displacement machine has at least two adjacent working chambers which are defined by: a) a common first wall section made of an elastic material; b) a common second wall section; and c) a movable element which is movable with respect to the first wall section, which movable element has a press-on section that presses the first wall section against the second wall section to form a common sealing region between the two adjacent working chambers, which common sealing region moves with the movement of the press-on section. At least one of the first and second wall sections is provided with a non-smooth profile on the inner side of the working chambers.
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Kenyon & Kenyon LLP
Robert & Bosch GmbH
Trieu Theresa
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