Sartorius Stedim Biotech Gmbh

Sartorius Stedim Lab Limited

Martin Purshouse

Adam Gilbert

Karl Pflanz

Sebastian Pruehl

Andreas Pickl

Roland Leetsch

Michael Bates

Chris Biddell

Adam Green

Thomas Davidson

Sebastian PRÜHL

A filtering system () includes a filtering apparatus having a filter unit for receiving liquid to be filtered, a receptacle for receiving filtered liquid, and an adapter () for coupling the filter unit to the receptacle, and also includes a base () having a cradle () for receiving the filtering apparatus and a base vacuum delivery port (). The adapter includes an adapter vacuum receiving port () coupled to the vacuum delivery port for driving the liquid through the filter and—as filtered liquid—into the receptacle. The cradle and the adapter have an interlocking mechanism () that locks the filtering apparatus to the cradle in a locking position in which the vacuum receiving port is sealingly coupled to the base vacuum delivery port. The base vacuum delivery port has a vacuum valve () constituted as a normally-closed valve automatically forced open when the filtering apparatus locks to the cradle.

Liquid filtering method and system

A crossflow filter device for filtering a pressurised feed liquid is provided. The crossflow filter device comprises: a filter membrane; a flow channel for the pressurised feed liquid which extends in a path over a retentate surface of the membrane such that the direction of flow in the channel is tangential to the retentate surface, and a filtrate derived from the feed liquid passes through the membrane leaving retentate liquid in the flow channel; and a collection chamber for the filtrate formed on an opposite, filtrate surface of the membrane. The crossflow filter device further comprises a sealed housing having a retentate side and a filtrate side which enclose therebetween the flow channel, the filter membrane and the collection chamber. The crossflow filter device further comprises, flow channel guide walls provided at an inner surface of the retentate side of the housing. The guide walls are configured to form a fluid tight seal with the filter membrane, and thereby define the path of the flow channel over the retentate surface of the membrane.

Crossflow filter device

A filtering system () includes a filtering apparatus having a filter unit for receiving liquid to be filtered, a receptacle for receiving filtered liquid, and an adapter () for coupling the filter unit to the receptacle, and also includes a base () having a cradle () for receiving the filtering apparatus and a base vacuum delivery port (). The adapter includes an adapter vacuum receiving port () coupled to the vacuum delivery port for driving the liquid through the filter and&#x2014;as filtered liquid&#x2014;into the receptacle. The cradle and the adapter have an interlocking mechanism () that locks the filtering apparatus to the cradle in a locking position in which the vacuum receiving port is sealingly coupled to the base vacuum delivery port. The base vacuum delivery port has a vacuum valve () constituted as a normally-closed valve automatically forced open when the filtering apparatus locks to the cradle.

Liquid filtering system

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Clevedon, United Kingdom

Martin Purshouse