摘要:
An improvement in the fabrication and bonding of dead-end and cross-flow thermoplastic filtration modules is disclosed whereby two housing parts are bonded to each other and to a filtration membrane by an L-shaped plastic melt.
摘要:
There is disclosed a vacuum filtration device for aqueous media that includes a hydrophilic tubular filter element in a cylindrical housing and at least one hydrophobic gas-permeable membrane, coupled with a gas bleed-off valve to allow the escape of air entrained in the filtration medium.
摘要:
The invention relates to a transfer unit for receiving in particular a porous disc-shaped medium from a first treatment device, having an upper part, wherein the upper part comprises a fixing edge that can be connected to an edge of the medium for removing the medium from the first treatment device, wherein the upper part comprises an opening closed by a removable cover, by means of which successive treatments in a further treatment device can be performed. The invention further relates to a method wherein an upper part of a transfer unit is placed on a disc-shaped medium disposed in a first lower part of a first treatment device and exposed to the liquid sample and is connected to an edge of the medium, wherein the upper part is lifted off from the first lower part with the disc-shaped medium connected thereto, and is placed on a further lower part of a corresponding treatment device, and is further processed through an opening in the upper part.
摘要:
There is disclosed a filtration unit for separating a substance from a fluid, the unit made up of at least one pleated filter element in a cylindrical housing, the housing in turn made up of two mating housing components and at least two fluid connectors, the filter element separating the housing into inlet and outlet plenums with the periphery of the filter element adjoining the wall of the cylindrical housing; the periphery of the filter element and the periphery of the two mating components are all bonded to each other by a single integral sealant bond.
摘要:
The invention relates to a transfer unit for receiving in particular a porous disc-shaped medium from a first treatment device, having an upper part, wherein the upper part comprises a fixing edge that can be connected to an edge of the medium for removing the medium from the first treatment device, wherein the upper part comprises an opening closed by a removable cover, by means of which successive treatments in a further treatment device can be performed. The invention further relates to a method wherein an upper part of a transfer unit is placed on a disc-shaped medium disposed in a first lower part of a first treatment device and exposed to the liquid sample and is connected to an edge of the medium, wherein the upper part is lifted off from the first lower part with the disc-shaped medium connected thereto, and is placed on a further lower part of a corresponding treatment device, and is further processed through an opening in the upper part.
摘要:
A fluid filtration unit having pleated filter media with at least one ply, and two housing parts with inlet and outlet fluid passageways and inwardly projecting ribs that accommodate the pleated filter media.
摘要:
A dispenser is disclosed that is particularly suitable for dispensing packaged items such as bandages or membrane filters. The dispenser is provided with a magazine for holding the items, with a distribution assembly for exposure and distribution of the items, an ejector operable in advance/feed and disposal modes, and with a separating assembly for separation of the item from its packaging.
摘要:
The invention relates to closure, in particular for a nutrient medium container, wherein a lower part can be covered by an upper part, wherein the lower part and the upper part can be locked against each other by means of at least one locking receptacle and at least one locking part by rotating the lower part and the upper part about a longitudinal axis, and wherein the locking receptacle has a receptacle groove that is covered by a shoulder and that extends perpendicularly to the longitudinal axis, in which receptacle groove the locking part engages, wherein the shoulder has at least one ramp surface extending at an angle from the longitudinal axis on the outer face of the shoulder facing away from the receptacle groove.
摘要:
The invention relates to closure, in particular for a nutrient medium container, wherein a lower part can be covered by an upper part, wherein the lower part and the upper part can be locked against each other by means of at least one locking receptacle and at least one locking part by rotating the lower part and the upper part about a longitudinal axis, and wherein the locking receptacle has a receptacle groove that is covered by a shoulder and that extends perpendicularly to the longitudinal axis, in which receptacle groove the locking part engages, wherein the shoulder has at least one ramp surface extending at an angle from the longitudinal axis on the outer face of the shoulder facing away from the receptacle groove.
摘要:
There is disclosed a filter package comprising a housing and a cover that is adapted to enclose a sterile disposable filter wherein the package cover is penetrable at a point axially aligned with the filter and has at least one pre-formed break line along which the package cover, when subjected to appropriate force, ruptures so as to permit withdrawal of the filter by a syringe coupled thereto.