Patents by Inventor David W. Mitchell

David W. Mitchell 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: 8621029
    Abstract: A system and method provides a remote direct memory access over a transport medium that does not natively support remote direct memory access operations. An emulated VI module of a storage operating system emulates RDMA operations over such a medium, e.g., conventional Ethernet, thereby enabling storage. Storage appliances in a cluster configuration utilize the non-RDMA compatible transport medium as a cluster interconnect.
    Type: Grant
    Filed: April 28, 2004
    Date of Patent: December 31, 2013
    Assignee: NetApp, Inc.
    Inventors: James R. Grier, Abhijeet Gole, David W. Mitchell, Jeffrey S. Kimmel, Arthur F. Lent
  • Patent number: 7207418
    Abstract: A method and apparatus for filling a transmission at the transmission assembly plant including the steps of pumping fluid through the transmission entering at a first port and exiting through a second port, rotating the torque converter to purge trapped air, shifting the transmission, filling the transmission to a desired level and plugging the first and second ports. Through use of the method and apparatus of the present invention, the transmission is placed in a “road ready” condition and will not require additional fluid to be added in a top off operation at the vehicle assembly plant.
    Type: Grant
    Filed: October 27, 2003
    Date of Patent: April 24, 2007
    Assignee: Cinetic Automation Corporation
    Inventors: Kenneth B. Richardson, David W. Mitchell
  • Patent number: 7041085
    Abstract: An improved guard for a medical cartridge, such as a unit dose pre-filled glass syringe, comprising a body for receiving the cartridge, and a shield slidably attached to the body which are pre-assembled and ready to receive a cartridge therein. The body has a locking mechanism on a proximal end thereof which holds the cartridge therein. The body and shield have cooperating detents and detent pockets which allow the shield to be directed distally, from an unguarded position in which the needle on the cartridge is uncovered for delivery of medication, to a guarded position in which the needle is permanently covered for disposal. The body may also include a substantially rectangular-shaped finger grip on its proximal end for receiving a similarly shaped proximal flange on the cartridge, whereby the cartridge is received in a predetermined orientation.
    Type: Grant
    Filed: December 17, 2001
    Date of Patent: May 9, 2006
    Assignee: Safety Syrines, Inc.
    Inventors: Anthony R. Perez, John R. Firth, David W. Mitchell
  • Publication number: 20030186199
    Abstract: Online method, system and software for interactively training a user to use a device. One or more computers are operably programmed and configured to display instruction for using a device, display an interactive graphical simulation of the device, receive user input configuring the device, and display a result of the user configuring the device. In another embodiment, the device automatically is synchronized to a particular segment of the instruction. Instructions for configuring or using the device in a particular manner may be provided to a user, together with an indication as to whether the resulting user configuration is correct (e.g., online exercises, quizzes, examinations, etc.) Online communication may be established between user-trainees and device manufacturers for user support, product feedback, etc. A wide variety of devices and device usages or configurations may be simulated, including but not limited to vehicle diagnostic, electrical, and medical devices and related applications.
    Type: Application
    Filed: January 23, 2003
    Publication date: October 2, 2003
    Applicant: Melior-Delaware
    Inventors: Bryon E. McCool, David W. Mitchell
  • Publication number: 20020045864
    Abstract: An improved guard for a medical cartridge, such as a unit dose pre-filled glass syringe, comprising a body for receiving the cartridge, and a shield slidably attached to the body which are pre-assembled and ready to receive a cartridge therein. The body has a locking mechanism on a proximal end thereof which holds the cartridge therein. The body and shield have cooperating detents and detent pockets which allow the shield to be directed distally, from an unguarded position in which the needle on the cartridge is uncovered for delivery of medication, to a guarded position in which the needle is permanently covered for disposal. The body may also include a substantially rectangular-shaped finger grip on its proximal end for receiving a similarly shaped proximal flange on the cartridge, whereby the cartridge is received in a predetermined orientation. The body may also include one or more ribs within the cavity for accommodating a cartridge with a large needle cap, such as a 0.5 mL capacity pre-filled syringe.
    Type: Application
    Filed: December 17, 2001
    Publication date: April 18, 2002
    Applicant: Safety Syringes, Inc.
    Inventors: Anthony R. Perez, John R. Firth, David W. Mitchell
  • Patent number: 6344032
    Abstract: An improved guard for a medical cartridge, such as a unit dose pre-filled glass syringe, comprising a body for receiving the cartridge, and a shield slidably attached to the body which are pre-assembled and ready to receive a cartridge therein. The body has a locking mechanism on a proximal end thereof which holds the cartridge therein. The body and shield have cooperating detents and detent pockets which allow the shield to be directed distally, from an unguarded position in which the needle on the cartridge is uncovered for delivery of medication, to a guarded position in which the needle is permanently covered for disposal. The body may also include a substantially rectangular-shaped finger grip on its proximal end for receiving a similarly shaped proximal flange on the cartridge, whereby the cartridge is received in a predetermined orientation. The body may also include one or more ribs within the cavity for accommodating a cartridge with a large needle cap, such as a 0.5 mL capacity pre-filled syringe.
    Type: Grant
    Filed: August 8, 2000
    Date of Patent: February 5, 2002
    Assignee: Safety Syringes, Inc.
    Inventors: Anthony R. Perez, John R. Firth, David W. Mitchell
  • Patent number: 6159184
    Abstract: An improved guard for a medical cartridge, such as a unit dose pre-filled glass syringe, comprising a body for receiving the cartridge, and a shield slidably attached to the body which are pre-assembled and ready to receive a cartridge therein. The body has a locking mechanism on a proximal end thereof which holds the cartridge therein. The body and shield have cooperating detents and detent pockets which allow the shield to be directed distally, from an unguarded position in which the needle on the cartridge is uncovered for delivery of medication, to a guarded position in which the needle is permanently covered for disposal. The body may also include a substantially rectangular-shaped finger grip on its proximal end for receiving a similarly shaped proximal flange on the cartridge, whereby the cartridge is received in a predetermined orientation. The body may also include one or more ribs within the cavity for accommodating a cartridge with a large needle cap, such as a 0.5 mL capacity pre-filled syringe.
    Type: Grant
    Filed: October 2, 1997
    Date of Patent: December 12, 2000
    Assignee: Safety Syringes, Inc.
    Inventors: Anthony R. Perez, John R. Firth, David W. Mitchell
  • Patent number: 6030366
    Abstract: A guard for a medical cartridge, such as a pre-filled syringe, includes a body having an open proximal end communicating with a cavity for receiving the cartridge, and a shield slidably attached to the body. The body has a semi-rigid cantilever member on its distal end from which a stop tab, having a sloped distal edge and a blunt proximal edge, extends. The shield includes an elongate opening for receiving the stop tab, thereby allowing the shield to slide between unguarded and guarded positions for exposing and covering a needle, respectively. During assembly of the shield and body, the stop tab slidably engages an assembly tab on the shield, deflecting the cantilever member inward while the stop tab passes under the shield, the sloped distal edge of the stop tab minimizing damage to the stop tab or shield. In the guarded position, the blunt proximal edge of the stop tab engages a proximal wall of the elongate opening to prevent further distal movement beyond the guarded position.
    Type: Grant
    Filed: November 9, 1998
    Date of Patent: February 29, 2000
    Assignee: Safety Syringes, Inc.
    Inventor: David W. Mitchell
  • Patent number: 5955540
    Abstract: Rubber-modified monovinylidene aromatic copolymers having an enhanced combination of gloss, toughness and melt flow characteristics are provided by a process wherein a rubber latex having a specified particle size is partially agglomerated, emulsion graft polymerized to a specified graft copolymer to rubber (G/R) ratio and a specified graft copolymer molecular weight and further agglomerated during subsequent dewatering and/or melt compounding operations.
    Type: Grant
    Filed: March 26, 1998
    Date of Patent: September 21, 1999
    Assignee: The Dow Chemical Company
    Inventors: Robert P. Dion, David W. Mitchell, Patricia B. Leng
  • Patent number: 5774924
    Abstract: A cornering tool is provided which may be used for application of drywall or plaster or similar construction coating materials. The tool is adjustable over a wide range of corner angles. In addition, the adjustability allows for use in plastering as well as drywall application where the angle is offset to effect screeding of excess coating material. The tool includes the novel feature in such tools of a thinned hinge section with increased flexibility which allows for angular adjustment of the blades without bending the blades out of plane. The tool is preferably formed of plastic.
    Type: Grant
    Filed: January 16, 1997
    Date of Patent: July 7, 1998
    Inventors: Danny A. Beckham, David W. Mitchell
  • Patent number: 5197636
    Abstract: An apparatus for dispensing a liquid medium containing dissolved chlorine dioxide comprises a reservoir which defines a receptacle adapted for holding a precursor liquid medium having chlorine dioxide precursor dissolved therein and a tip assembly into which the precursor liquid medium passes after the precursor liquid exits the receptacle. The tip assembly comprises a chamber in which is located a promoter component effective to promote the generation of chlorine dioxide from the chlorine dioxide precursor in the liquid medium present in the chamber, an outlet providing a path for the liquid medium containing dissolved chlorine dioxide to exit the chamber, and an isolation assembly acting to effectively separate the precursor liquid medium in the reservoir from the promoter when it is desired that the precursor liquid medium from the reservoir be separated from the catalyst.
    Type: Grant
    Filed: February 3, 1992
    Date of Patent: March 30, 1993
    Assignee: Allergan, Inc.
    Inventors: David W. Mitchell, John Baker, Hampar Karageozian, Daniel F. Smith
  • Patent number: 5080643
    Abstract: An improved method of making a stand-up plastic bag in which the side seam seals are formed at the same time as the gusset wall seals. The method includes the steps of supplying the film, folding the film to form the gusset, simultaneously forming the heat seals for the gusset walls and the side seams at one temperature, forming the heat seals to join the gusset walls together at a higher temperature, and separating the film into completed bags. The improved method provides greater efficiency and increased production rates.
    Type: Grant
    Filed: June 5, 1990
    Date of Patent: January 14, 1992
    Assignee: Dow Brands Inc.
    Inventors: David W. Mitchell, Roger D. Vrooman
  • Patent number: 4997416
    Abstract: An improved method of making a stand-up plastic bag in which heated pins are used to seal the gusset walls. The pins are heated at a temperature lower than melting point of the thermoplastic which forms the exterior contiguous portions of the gusset walls. The method includes the steps of supplying the film, folding the film to form the gusset, forming the heat seals for the gusset walls and the heat seals for the side seams at one temperature, forming the heat seals joining the gusset walls together at the same temperature using a heated pin seal bar, and separating the film into completed bags. The improved method provides greater efficiency and increased production rates.
    Type: Grant
    Filed: June 5, 1990
    Date of Patent: March 5, 1991
    Assignee: Dow Brands Inc.
    Inventors: David W. Mitchell, Roger D. Vrooman
  • Patent number: 4172819
    Abstract: The rotor comprises an elongated hollow cylinder and hollow stub shafts affixed to and extending outwardly of each end portion of the cylinder, such cylinder interior being in fluid communication with the interiors of the shafts so that cooling fluid passes therebetween to reduce the heat build up of the cylinder and the transfer of heat to the rotor support beraings, and to conserve energy by substantially reducing the mass of the rotor. Fan blades may be located in and attached inwardly of the shaft or the cylinder to force cooling air therethrough.
    Type: Grant
    Filed: May 26, 1978
    Date of Patent: October 30, 1979
    Assignee: Carpco, Inc.
    Inventors: David W. Mitchell, Arnold H. Jackson
  • Patent number: 4031004
    Abstract: A feed system is disclosed herein for use with an electromagnetic eddy current materials separator for supplying material to be acted upon by the eddy current magnet directly into the regions strongest influence of the magnetic field of said magnet. Automatic blockage release means are provided to terminate jam-ups in the event that a blockage should occur in the delivery of feedstock to the region of influence of the magnetic field of the magnet.
    Type: Grant
    Filed: May 24, 1976
    Date of Patent: June 21, 1977
    Inventors: Edward J. Sommer, Jr., Garry R. Kenny, Frank S. Knoll, David W. Mitchell
  • Patent number: D279357
    Type: Grant
    Filed: May 20, 1983
    Date of Patent: June 25, 1985
    Assignee: Allergan Pharmaceuticals, Inc.
    Inventor: David W. Mitchell