Patents by Inventor Laurence J. Purcell

Laurence J. Purcell has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 7919307
    Abstract: A device for supplying cell culture modules with nutrients has an arrangement of channels, pumps and valves in or on a plate. The valves may be pinch valves operated by deforming an elastic section of a conduit and the pump may be a pinch valve pump. The channels may be defined, at least in part, by the plate. The pumps, channels and valves may be located within the thickness of the plate. The device may be used to supply nutrients to cell culture modules according to a perfusion operation, a re-circulation operation and/or a combination of both.
    Type: Grant
    Filed: May 8, 2006
    Date of Patent: April 5, 2011
    Assignee: ALPHA PLAN GmbH
    Inventors: Uwe Klaus, Rudolph Luning, Laurence J. Purcell, Stefan Doring
  • Publication number: 20090311778
    Abstract: A device for supplying cell culture modules with nutrients has an arrangement of channels, pumps and valves in or on a plate. The valves may be pinch valves operated by deforming an elastic cover over a solid body and the pump may be a pinch valve pump. The channels may be defined, at least in part, by the plate. The pumps, channels and valves may be located within the thickness of the plate and the cover. The device may be used to supply nutrients to cell culture modules according to a perfusion operation, a re-circulation operation and/or a combination of both. A pump may comprise a generally rigid solid body and a seal. The solid body may wholly or partially define an inlet channel, a plenum and an outlet channel. A port between the inlet channel and the plenum is covered by the seal. A surface of the plenum is deformable. Deforming the surface forces liquid in the plenum to push the seal to cover the inlet channel port and to flow through the outlet channel.
    Type: Application
    Filed: May 5, 2009
    Publication date: December 17, 2009
    Inventors: Rudolph Luning, Uwe Klaus, Laurence J. Purcell, Stefan Doering
  • Publication number: 20090159521
    Abstract: A filtration module comprises a housing having an inlet and an outlet; a plurality of hollow fiber membranes disposed in the housing, each membrane having a wall and a lumen open to the outlet; a porous shell disposed in the housing and encasing the plurality of hollow fiber membranes, the shell having an opening through which ends of the hollow fiber membranes pass; and a plug in the outlet, the ends of the hollow fiber membranes passing through the plug and the shell ending in the plug. A liquid treatment apparatus comprising the filtration module is also disclosed, as are method for making the filtration module and the liquid treatment apparatus.
    Type: Application
    Filed: December 24, 2008
    Publication date: June 25, 2009
    Inventors: Rudolph Luning, Uwe Klaus, Laurence J. Purcell