Comprising One Or More Discrete Members Serving As A Pawl And Ratchet Patents (Class 411/227)
  • Patent number: 7014404
    Abstract: A nut member has first and second end faces and corners, and is formed with a plurality of protrusions, each of which is disposed at a respective corner and each of which has a lateral inner face that extends from the second end face, and a plurality of recesses, each of which is indented inwardly from a respective corner and each of which is defined by a recess-defining wall. The recess-defining wall has a lateral outer face that extends from the first end face. Each protrusion is received in and meshes with a respective recess, and the lateral outer face is in face-to-face contact with the lateral inner face when two of the nut bodies are stacked and are tensioned on a screw bolt.
    Type: Grant
    Filed: October 4, 2004
    Date of Patent: March 21, 2006
    Inventor: Chih-Chung Chiang
  • Patent number: 6860693
    Abstract: A press-in fastening apparatus and method couples a screw with a nut by pushing the screw through an opening of the nut along a slip axis and rotating the nut to align a lock axis with the inserted screw. The opening of the nut along the slip axis has a diameter greater than the diameter of the screw and the opening of the nut along the lock axis has a diameter that engages screw threads with nut threads. In one embodiment, the nut is disposed in a housing coupled to an information handling system and biased to align with the lock axis so that a module is secured to the information handling system by aligning a screw coupled to the module with the nut and pushing the screw into the nut. The module is removed from the information handling system by unscrewing the screw with engagement of the screw threads and nut threads.
    Type: Grant
    Filed: February 14, 2003
    Date of Patent: March 1, 2005
    Assignee: Dell Products L.P.
    Inventors: Christopher A. Jones, Christopher Beall, Alan Ifft