Patents Assigned to POLARIS FASTENER TESTING AND TOOLING, LLC
  • Patent number: 10220435
    Abstract: A tooling installation system having unique tools which provide an external force directly to the sleeve end of a faster to create a bulb on the sleeve of the fastener is provided. The system provides external forces directly to the sleeve end of the fastener deforming a portion of the sleeve radially outward and onto the structure prior to swaging a second portion of the sleeve radially inward onto the pin. Additionally, the system controls formation of the sleeve by capturing an external portion of the sleeve creating a cavity between the tool and the structure for achieving proper bulb formation during installation prior to swage. The system also provides specific forces to the head of the pin and the head of the sleeve to insure proper seating of the fastener head against the structure inducing residual compressive stresses within the structure, thus improving mechanical properties such as fatigue life of the structure.
    Type: Grant
    Filed: August 26, 2016
    Date of Patent: March 5, 2019
    Assignee: POLARIS FASTENER TESTING AND TOOLING, LLC
    Inventors: Rahmatollah F. Toosky, Nicholas A. Elliott