Patents by Inventor Lee Edward Jan Styger

Lee Edward Jan Styger 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: 6842119
    Abstract: A method of detecting damage to a structural member which is part of a working arm of a working apparatus, which arm is moveable relative to a body of the apparatus by an actuator. In use, the arm carries a load at another end thereof. The method including the steps of locating in or on the structural member in a position which is liable to damage, at least one filament. So long as the filament remains undamaged, a signal is transmitted along the length of the filament. In the event of an interruption of the transmitted signal, a fault signal is generated. The fault signal is used to disable operation of the actuator. The method is particularly useful for working arms made from light weight composite materials in the form of a matrix of fibers in a resin material which is susceptible to impact damage which may not be visible.
    Type: Grant
    Filed: April 10, 2003
    Date of Patent: January 11, 2005
    Assignee: J. C. Bamford Excavators, Limited
    Inventors: Andrew David Nurse, Lee Edward Jan Styger
  • Publication number: 20030222784
    Abstract: A method of detecting damage to a structural member which is part of a working arm of a working apparatus, which arm is moveable relative to a body of the apparatus by an actuator. In use, the arm carries a load at another end thereof. The method including the steps of locating in or on the structural member in a position which is liable to damage, at least one filament. So long as the filament remains undamaged, a signal is transmitted along the length of the filament. In the event of an interruption of the transmitted signal, a fault signal is generated. The fault signal is used to disable operation of the actuator. The method is particularly useful for working arms made from light weight composite materials in the form of a matrix of fibers in a resin material which is susceptible to impact damage which may not be visible.
    Type: Application
    Filed: April 10, 2003
    Publication date: December 4, 2003
    Inventors: Andrew David Nurse, Lee Edward Jan Styger
  • Publication number: 20030214072
    Abstract: A method of molding a container by rotational molding in which molding material is introduced into a mold cavity, and the mold is rotated about at least one axis of rotation. Prior to introducing the molding material, a dividing member is located in the mold cavity to divide the mold cavity into at least two cavities. When the molding material is subsequently introduced and the mold rotated, molding material coats the member so that the member becomes an integral part of the container and provides first and second separated volumes within the container. In use, fluid contained in the first volume is maintained separate from fluid in the second volume.
    Type: Application
    Filed: April 30, 2003
    Publication date: November 20, 2003
    Applicant: J. C. Bamford Excavators Limited
    Inventors: Andrew David Nurse, Lee Edward Jan Styger, Alastair McCourt
  • Publication number: 20030213807
    Abstract: A container has a polymer body providing an enclosed volume in which in use fluid is contained. The body including an engagement formation from which, in use, an item, such as a particulate filter, depends within the enclosed volume. The container includes at a position below the engagement formation, a support formation formed integrally with the body of the container to support the item from below at least when the container becomes hot.
    Type: Application
    Filed: May 1, 2003
    Publication date: November 20, 2003
    Applicant: J.C. Bamford Excavators Limited
    Inventors: Andrew David Nurse, Lee Edward Jan Styger, Alastair McCourt