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| Number | Title | Issue Date |
| 5871645 | Filter arrangement including a non-perforated housing and an axially pleated filter pack The filter arrangement includes first end cap, second end cap, a cylindrical filter pack that has first and second ends and axially extending pleats disposed between the first and second ends, and a cylindrical non-perforated housing body that is disposed... | 02/16/1999 |
| 5868433 | Connector assembly A connector assembly includes a first fitting defining a first aperture, and a second fitting couplable to the first fitting and defining a second aperture. In some embodiments, each of the first and second fittings includes a sealing layer sealing its ap... | 02/09/1999 |
| 5863436 | Venting system Biological fluid processing assemblies having a gas inlet and/or a gas outlet are disclosed.... | 01/26/1999 |
| 5863432 | Cylindrical filters A cylindrical filter is formed from a sheet of filter material which includes two connected layers of filter media. Opposed edges of the sheet are joined to form the cylinder by separating the media adjacent the edges and then sealing together the first o... | 01/26/1999 |
| 5429742 | Plastic frame filter unit for a stack assembly A filter unit comprises a plastics frame into which a sheet of filter medium is insert moulded. Portions of the frame form apertures and other portions allow fluid access to and from the opposed surfaces of the filter medium when the frame is covered by a... | 07/04/1995 |
| 5429663 | Removal in aircraft of components from fluid mixtures The removal of components from fluid mixtures in aircraft utilizes an adsorbent bed which is regenerated by passing dry ambient air through the adsorbent bed when the aircraft reaches a height at which such dry ambient air is available. An example of mixt... | 07/04/1995 |
| 5417101 | Method and apparatus for testing the integrity of filter elements A method and apparatus for testing the integrity of filter elements is provided. The filter assembly comprises a plurality of filter elements which are subdivided into a plurality of sections. By measuring the gas flow rate under known pressure conditions... | 05/23/1995 |
| 5407571 | Filter unit and modular filter assembly A filter unit for a modular filter assembly comprises a head (1), said head having a feed chamber (2) and a discharge chamber (3), and a casing (6) surrounding a filter element (4). Fluid flow from the feed chamber to the discharge chamber of said filter ... | 04/18/1995 |
| 5399268 | Method for processing blood for human transfusion A method of preparing platelets for long term storage comprises the steps of (a) obtaining whole blood from a human, (b) preparing platelet rich plasma from the whole blood and (c) then passing the platelet rich plasma through a filter under conditions su... | 03/21/1995 |
| 5366631 | Composite, supported fluorocarbon media A composite, supported microporous medium is provided which includes a fluoropolymeric microporous membrane having secured directly to at least one surface thereof a fluoropolymeric web of microfibers. A method of forming a composite, supported microporou... | 11/22/1994 |
| 5364526 | System for processing separate containers of biological fluid Processes and systems for combining multiple units of a biological fluid in independent containers into a single container are disclosed.... | 11/15/1994 |
| 5360545 | Filter for obtaining platelets The invention provides processing donated blood, particularly a platelet-containing solution such as platelet-containing plasma, involving separating blood into a red cell containing sediment layer and a supernatant layer, and passing the supernatant laye... | 11/01/1994 |
| 5344561 | Device for depletion of the leucocyte content of blood and blood components A high efficiency leucocyte-depletion filter for use with packed red cell concentrate derived from freshly drawn blood comprises a fibrous filter medium with a pore size of from about 0.5 to less than 3.6 μm and a CWST of from 53 to about 80. The filter ... | 09/06/1994 |
| 5334315 | Priming system Processes and systems and methods for priming a fluid processing apparatus and for treating a fluid are disclosed.... | 08/02/1994 |
| 5334309 | Filter units A filter unit comprises a housing containing a filter element. The housing includes an inlet for fluid and an inlet passage which passes fluid to the filter element. An outlet passage conveys filtered fluid from the element to an outlet to the housing. Th... | 08/02/1994 |
| 5331856 | Pressure devices A pressure indication device comprises a housing including a bore in which is received a slidable piston. The piston has two end faces, one of which is for connection to a source of fluid at higher pressure and the other of which is for connection to a so... | 07/26/1994 |
| 5316674 | Device for processing blood for human transfusion A device for processing donated blood comprises a porous medium interposed between the collection bag and a satellite bag into which a component separated by centrifugation can be expressed, the filter element preferably having a CWST of about 70 to about... | 05/31/1994 |
| 5302354 | Filtration device A filtration device has a particulate filter element and a sorbent filter element having different flow properties. When viewed in cross section, the particulate filter element has inner and outer legs that form generally the shape of a W and define a spa... | 04/12/1994 |
| 5302301 | Multistage liquid and gas separator A separator which can be used for separating water from an air/water mixture in an aircraft where the air is to be supplied to electronics equipment comprises a chamber containing a generally tangential inlet tube through which a mixture is supplied to a ... | 04/12/1994 |
| 5302299 | Biological semi-fluid processing assembly The invention involves a method and apparatus for treating and administering biological fluids, particularly hyperconcentrated biological fluids.... | 04/12/1994 |
| 5299526 | Indicators A differential pressure indicator is of the type which uses a magentically attracted spring loaded pop-up button to indicate when the pressure difference between two fluids reaches a predetermined difference. In order to reduce or eliminate false readings... | 04/05/1994 |
| 5286381 | Filter assemblies A filter assembly particularly useful for the nuclear industry is provided with a number of cylindrical cartridge filters attached to a plenum chamber which is formed by a rotational moulding process. A rod is provided on the assembly which can be attache... | 02/15/1994 |
| 5279731 | Depth filter media A porous filter medium is formed by a pleated cylinder of a depth filter medium. An absolute rated inner filtration layer is arranged between upstream and downstream drainage layers. The depth filter medium is formed from a continuous sleeve. Additionally... | 01/18/1994 |
| 5277819 | Cold draft beer filter membrane cleaning process A method for cleaning a microporous, water-wettable, alcohol-insoluble, polyamide membrane used for cold beer filtration using a dilute, alkaline solution which is non-destructive to the membrane and the filtration equipment and which removes and/or de-ab... | 01/11/1994 |
| 5277943 | Thermal bleaching process for non-contaminating fluorocarbon fiber media A process for reducing the level of extractables, whitening, and rendering a porous material non-contaminating where the porous material is comprised of bonded fluorocarbon fibers and a fluorocarbon chemical binder. The thermal bleaching process includes ... | 01/11/1994 |
| 5275743 | Filter and filtration method A filter for filtering a highly viscous material comprises a filter element including a glass fiber filter medium, preferably resin-bonded, having upstream and downstream sides and a polymeric mesh situated on at least one of the upstream and downstream s... | 01/04/1994 |
| 5275738 | Filter device for acids and process for filtering inorganic acids A PVDF membrane exposed to a quarternary ammonium hydroxide solution retains it hydrophobicity and resistance to corrosive environments, yet spontaneously and completely wets with concentrated sulfuric and nitric acids. The modified membrane is incorporat... | 01/04/1994 |
| 5271842 | Contaminant removal system and process A system and method for removing contaminants in a fluid, particularly water from lubricating oil, is provided which may comprise a particulate zeolitic adsorbent in conjunction with a non-porous PTFE barrier that has been modified to be permeable to wate... | 12/21/1993 |
| 5271838 | Filter assembly with filter elements separated by spacers A filter assembly includes a housing having an inlet and an outlet, at least two filter elements stacked inside the housing, and a spacer positioned between the filter elements. The spacer includes a body having an opening which is larger than the inner d... | 12/21/1993 |
| 5266219 | Device and method for separating plasma from blood A device for separating plasma from blood is provided comprising a synthetic polymeric fibrous structure having a CWST in excess of 65 dynes/cm, the structure having a first region for receiving a blood sample and a second region for accumulating plasma.... | 11/30/1993 |
| 5265770 | Contamination-resistant dispensing and metering device A cap for dispensing liquids from a container comprising a base portion; structure to attach the base portion to a container; and an off-center dispenser tip projecting from the base portion and having a passageway extending between an orifice at the dist... | 11/30/1993 |
| 5258127 | Leucocyte depleting filter device and method of use Leucocyte depletion filter assemblies decrease the leucocyte content of a biological fluid in an extracorporeal circuit. These filter assemblies are suitable for use in an extracorporeal circuit. Methods for removing leucocytes and other deleterious matte... | 11/02/1993 |
| 5258126 | Method for obtaining platelets A method is provided for processing donated blood, particularly a platelet-containing solution such as platelet-containing plasma, involving separating blood into a red cell containing sediment layer and a supernatant layer, and passing the supernatant la... | 11/02/1993 |
| 5257835 | Arrangement for connecting two sections of a fluid system An arrangement for connecting two parts of a fluid system, preferably an aseptic system, by which the pressure gradient acts from the outside to the inside. The one system part carries an O-ring in a groove open to the other system part and open radially ... | 11/02/1993 |
| 5252222 | Filter for parenteral systems and method of using thereof A filter device and method are provided for treating parenteral nutrient fluids, particularly TNA systems containing lipids, glucose, and amino acids. The filter device comprises a housing and a microporous medium in the form of a synthetic polymeric micr... | 10/12/1993 |
| 5252207 | Wrap member having openings A filter includes a pleated filter element having longitudinally extending pleats and a wrap member wrapped around the filter element. The wrap member is joined to the peaks of the pleats and has openings for increasing the dirt capacity of the filter. Th... | 10/12/1993 |
| 5238717 | End caps for filter elements An end cap for a filter element comprises first and second concentric components of a thermoplastic material. The first of the components forms a side wall and a base of a peripheral groove of the end cap while the second of the components forms a second ... | 08/24/1993 |
| 5232600 | Hydrophobic membranes A process for the preparation of a microporous polymeric membrane is provided which includes polymerizing a polymerizable fluorine-containing monomer in the presence of a microporous polymeric membrane substrate such that the fluorine-containing monomer f... | 08/03/1993 |
| 5229012 | Method for depletion of the leucocyte content of blood and blood components A high efficiency leucocyte-depletion filter for use with packed red cell concentrate derived from freshly drawn blood comprises a fibrous filter medium with a pore size of from about 0.5 to less than 3.6 μm and a CWST of from 53 to about 80. The filter ... | 07/20/1993 |
| 5228992 | Process for preparing hollow fiber separatory devices A hollow fiber separatory device or module is produced by injection molding a thermoplastic potting material around thermoplastic hollow fibers. The thermoplastic hollow fibers are enhanced in order to increase the fibers' ability to withstand the high te... | 07/20/1993 |
