Patents by Inventor John McKnight

John McKnight 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: 7938121
    Abstract: The present invention provides an abdominal restraint for use in medical and surgical procedures that is specially adapted for restraining an abdominal pannus and exposing the groin area of a patient. The abdominal restraint of the present invention includes a base member and a support member that is selectively attachable to the base member. Alternatively, the abdominal restraint of the present invention includes a lateral member that is selectively attachable to at least one longitudinal member, which in turn may be attached to an operating or examining table. In its various embodiments, the present invention discloses a number of designs for the safe and efficient restraint of an abdominal pannus.
    Type: Grant
    Filed: February 11, 2005
    Date of Patent: May 10, 2011
    Assignee: Merit Medical Systems, Inc.
    Inventors: John McKnight, Chi Lam Yau, Mark MacMahon
  • Patent number: 7767823
    Abstract: A process in which a salt of clavulanic acid, typically an amine salt or an alkali metal salt is exposed to conditions, particularly a pH of less than 6.0, which reduces the quantity of contaminating impurities. The process may be a washing process, a recrystallisation process or a preparative process.
    Type: Grant
    Filed: May 9, 2001
    Date of Patent: August 3, 2010
    Assignee: SmithKline Beecham Limited
    Inventors: John McKnight, Guo Zhang
  • Publication number: 20060180158
    Abstract: The present invention provides an abdominal restraint for use in medical and surgical procedures that is specially adapted for restraining an abdominal pannus and exposing the groin area of a patient. The abdominal restraint of the present invention includes a base member and a support member that is selectively attachable to the base member. Alternatively, the abdominal restraint of the present invention includes a lateral member that is selectively attachable to at least one longitudinal member, which in turn may be attached to an operating or examining table. In its various embodiments, the present invention discloses a number of designs for the safe and efficient restraint of an abdominal pannus.
    Type: Application
    Filed: February 11, 2005
    Publication date: August 17, 2006
    Inventors: John McKnight, Chi Yau, Mark MacMahon
  • Publication number: 20060079676
    Abstract: A process in which a salt of clavulanic acid, typically an amine salt or an alkali metal salt is exposed to conditions, particularly a pH of less than 6.0, which reduces the quantity of contaminating impurities. The process may be a washing process, a recrystallisation process or a preparative process.
    Type: Application
    Filed: May 9, 2001
    Publication date: April 13, 2006
    Inventors: John McKnight, Guo Zhang
  • Patent number: 4215755
    Abstract: A variable-ratio power transmission mechanism having two output shafts for driving respective wheels or tracks at opposite sides of a heavy off-the-road vehicle, and having a steering mechanism for varying the relative rotational speeds of said shafts, is known. Where the steering mechanism includes a null shaft which is not driven when straight-line travel is required, said shaft has been driveable by hydrostatic means, but these have sometimes proved unreliable. It is therefore proposed to drive the null shaft by mechanical two-speed gearing driven from the input of the power transmission mechanism. The null shaft is selectively driveable by said gearing in either direction of rotation through the appropriate one of two progressively engaging clutches until it attains a first speed, and an epicyclic reduction gear in said gearing is then locked up to drive the null shaft in the same direction at a higher speed.
    Type: Grant
    Filed: October 23, 1978
    Date of Patent: August 5, 1980
    Assignee: David Brown Gear Industries Limited
    Inventors: Norman Waterworth, Eric A. Whateley, Gerald A. Shipley, John McKnight