Pipes and tubular conduits – With pressure compensators – Variable capacity chambers
Reexamination Certificate
2007-06-13
2009-11-24
Brinson, Patrick F (Department: 3754)
Pipes and tubular conduits
With pressure compensators
Variable capacity chambers
C138S104000, C138S026000, C220S721000
Reexamination Certificate
active
07621296
ABSTRACT:
A separation element of a multi-layer structure for pressure compensation including: at least two mutually superposed flexible, fluid-tight material layers; at least one spacer element which is arranged between the material layers and holds them at a spacing relative to each other, wherein the at least one spacer element is such that the space between the flexible, fluid-tight material layers is at least partly adapted for fluid to flow therethrough, and at an edge region of the multi-layer structure the separation element has a sensor region (S) which is in a communication with remaining space between the flexible, fluid-tight material layers through which fluid can flow, wherein within the sensor region, the flexible, fluid-tight material layers are designed so that, by virtue of an inflow of fluid between them, an increase of pressure causes an increase in the spacing between the material layers relative to each other.
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Bubb Alexander
Freissler Bernd
Brinson Patrick F
Dunn Michael L.
Prominent Dosiertechnik GmbH
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