Patents by Inventor Michael W. Scharf

Michael W. Scharf 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: 7237691
    Abstract: A flexible bag having expansible and collapsible cells can be used in a liquid dispenser. A rigid manifold, and in one instance a rigid frame is provided in the bag to keep passages open in use and to isolate one of the cells from the remaining cells. The manifold is capable of altering the volume of one of the cells so that the same bag can be used in different applications.
    Type: Grant
    Filed: December 19, 2005
    Date of Patent: July 3, 2007
    Assignee: Baxter International Inc.
    Inventors: Hal C. Danby, Michael W. Scharf, Julian F. Swan, David V. Bacehowski
  • Patent number: 7007824
    Abstract: A liquid dispenser uses a flexible bag having expansible and collapsible cells. A rigid manifold, and in one instance a rigid frame is provided in the bag to keep passages open in use and to isolate one of the cells from the remaining cells. The dispenser employs an efficient and quiet air pressure operating system. In one application, a concentrated drink mix may be held in a reservoir and diluted within other cells in the bag for dispensing to a cup or the like. A valve system allows for the particulates in the liquid without compromising the function of the valve.
    Type: Grant
    Filed: August 14, 2003
    Date of Patent: March 7, 2006
    Assignee: Baxter International Inc.
    Inventors: Hal C. Danby, Michael W. Scharf, Julian Francis Ralph Swan, David V. Bacehowski
  • Patent number: 6874522
    Abstract: A connector, a container using the connector and a method for establishing fluid communication with a container. The connector may include a first coupling member and a second coupling member. The container may attach to the first coupling member. The first coupling member may have a first passageway with a spike and a membrane located therein. The second coupling member may have a second passageway. The first coupling member may engage the second coupling member and may further pierce the membrane with the spike. The first coupling member may further have a female end of a luer-lock, and the second coupling member may have a male end of a luer-lock. The first coupling member and the second coupling member may be engaged by twisting the male end and the female end of the coupling members to form the connector and establish fluid communication with the container.
    Type: Grant
    Filed: June 18, 2002
    Date of Patent: April 5, 2005
    Assignees: Baxter International Inc., Baxter Healthcare S.A.
    Inventors: Keith M. K. Anderson, Raf Castellanos, Bill Hurst, Michael T. K. Ling, Dan Marcquenski, Michael W. Scharf, Jennifer L. Masek, Gregory Thomas Marn
  • Publication number: 20040144800
    Abstract: A liquid dispenser uses a flexible bag having expansible and collapsible cells. A rigid manifold, and in one instance a rigid frame is provided in the bag to keep passages open in use and to isolate one of the cells from the remaining cells. The dispenser employs an efficient and quiet air pressure operating system. In one application, a concentrated drink mix may be held in a reservoir and diluted within other cells in the bag for dispensing to a cup or the like. A valve system allows for the particulates in the liquid without compromising the function of the valve.
    Type: Application
    Filed: August 14, 2003
    Publication date: July 29, 2004
    Applicant: Baxter International, Inc.
    Inventors: Hal C. Danby, Michael W. Scharf, Julian Francis Ralph Swan, David V. Bacehowski
  • Publication number: 20030230340
    Abstract: A connector, a container using the connector and a method for establishing fluid communication with a container. The connector may include a first coupling member and a second coupling member. The container may attach to the first coupling member. The first coupling member may have a first passageway with a spike and a membrane located therein. The second coupling member may have a second passageway. The first coupling member may engage the second coupling member and may further pierce the membrane with the spike. The first coupling member may further have a female end of a luer-lock, and the second coupling member may have a male end of a luer-lock. The first coupling member and the second coupling member may be engaged by twisting the male end and the female end of the coupling members to form the connector and establish fluid communication with the container.
    Type: Application
    Filed: June 18, 2002
    Publication date: December 18, 2003
    Inventors: Keith M.K. Anderson, Raf Castellanos, Bill Hurst, Michael T.K. Ling, Dan Marcquenski, Michael W. Scharf, Jennifer L. Masek, Gregory Thomas Marn
  • Publication number: 20020164492
    Abstract: A multiple layer structure comprising a first and a second skin layer, each skin layer composed of a polypropylene containing polymer, and a radio frequency (“RF”) susceptible layer adhered to and between the first and second skin layers. The RF layer has a first component of a propylene based polymer, a second component of a non-propylene polyolefin, a third component of a radio frequency susceptible polymer, and a fourth component of a polymeric compatibilizing agent.
    Type: Application
    Filed: March 21, 2002
    Publication date: November 7, 2002
    Inventors: Gregg Nebgen, Keith M.K. Anderson, Michael W. Scharf
  • Patent number: 6162206
    Abstract: A resealable access site (10) is provided for allowing a cannula (18) multiple accesses to an internal cavity (35) defined by a container (12). The access site (10) includes a first conduit (28) defining a passageway (29) forming a fluid path to the cavity within the container. Sealingly attached to the conduit (28) is a housing (26) with a lower portion (26a) and a lower flange (68) attached to a lower end of the lower portion and extending radially inward from the lower portion. A septum (24) is disposed and compressed within the lower portion, with the septum defining an opening (46) extending upward through at least a portion of the septum. The opening (46) is sized for insertion of the cannula (18) through the septum (24) with the septum sealing about the exterior of the cannula. The septum (24) is maintained in the housing by the support provided by the opposing flange (68) and conduit (28).
    Type: Grant
    Filed: December 23, 1997
    Date of Patent: December 19, 2000
    Assignee: Baxter International Inc.
    Inventors: Algirdas J. Bindokas, Birendra K. Lal, Ray Brausam, Thomas A. Stonis, Steven C. Jepson, Michael W. Scharf, David V. Bacehowski, Michael T. K. Ling, Hugh M. Forman, Daniel J. Rudolph
  • Patent number: 5385253
    Abstract: A closure for a tubular administration port is formed by inner and outer members having upper ends joined together in sealing relationship. The inner member has a sealed bottom end and is configured to fit within the administration port. The outer member is configured to engage about an exterior of the tubular port. The inner member includes radially outwardly extending ribs that engage against the interior of the administration port in an interference fit relationship.
    Type: Grant
    Filed: September 2, 1992
    Date of Patent: January 31, 1995
    Assignee: Baxter International Inc.
    Inventors: Michael W. Scharf, Joseph N. Veillon, Jr., Thomas Yatsko
  • Patent number: 5088995
    Abstract: A port and closure assembly for a container is provided. The port and closure assembly includes a port having a tubular portion that extends from a base and terminates at an end including an opening. The tubular portion is divided into an upper and lower section by a pierceable membrane. The upper section including an end that terminates at the opening and including a resealing injection site. A closure member for removably surrounding at least a portion of the end of the port including the opening is provided. The closure includes a sleeve that circumscribes at least a portion of an outer surface of the upper section of the tubular portion. The sleeve is so constructed and arranged as to cause portions of the upper section to contact the resealing member during a sterilization step that softens the portions and further causes the portions of the upper section to retain the resealing injection site within the tubular portion after the portions have hardened.
    Type: Grant
    Filed: June 22, 1990
    Date of Patent: February 18, 1992
    Assignee: Baxter International Inc.
    Inventors: Jeffrey Packard, William J. Schnell, Michael W. Scharf
  • Patent number: D295380
    Type: Grant
    Filed: June 25, 1985
    Date of Patent: April 26, 1988
    Assignee: Baxter Travenol Laboratories, Inc.
    Inventors: Robert A. Virag, Michael W. Scharf