Patents by Inventor Richard J. Hartzheim

Richard J. Hartzheim 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).

  • Unwind and feed system for elastomeric thread
    Patent number: 7905446
    Abstract: An overend unwind system for unwinding tacky elastomeric fiber threads such as uncoated spandex thread, capturing the ballooning affect of the thread as the thread leaves the spool, applying a first-stage tension control on the thread adjacent where the thread leaves the spool, feeding the unwound thread to a nip in a downstream process, and applying a final tension increment to the thread adjacent where the thread enters the downstream process. All thread guide surfaces encountered by the thread after leaving the spool, and while the thread is under designed operating tension, are moving surfaces, such that the tensioned thread thereby experiences a reduced level of drag as the thread traverses its path of travel from the spool to the downstream process.
    Type: Grant
    Filed: December 29, 2006
    Date of Patent: March 15, 2011
    Assignee: OverEnd Technologies LLC
    Inventor: Richard J. Hartzheim
  • Unwind and feed system for elastomeric thread
    Patent number: 7878447
    Abstract: An overend unwind system for unwinding tacky elastomeric fiber threads such as uncoated spandex thread, capturing the ballooning affect of the thread as the thread leaves the spool, applying a first-stage tension control on the thread adjacent where the thread leaves the spool, feeding the unwound thread to a nip in a downstream process, and applying a final tension increment to the thread adjacent where the thread enters the downstream process. All thread guide surfaces encountered by the thread after leaving the spool, and while the thread is under designed operating tension, are moving surfaces, such that the tensioned thread thereby experiences a reduced level of drag as the thread traverses its path of travel from the spool to the downstream process.
    Type: Grant
    Filed: November 25, 2009
    Date of Patent: February 1, 2011
    Assignee: OverEnd Technologies, LLC
    Inventor: Richard J. Hartzheim
  • Unwind and feed system for elastomeric thread
    Publication number: 20100072316
    Abstract: An overend unwind system for unwinding tacky elastomeric fiber threads such as uncoated spandex thread, capturing the ballooning affect of the thread as the thread leaves the spool, applying a first-stage tension control on the thread adjacent where the thread leaves the spool, feeding the unwound thread to a nip in a downstream process, and applying a final tension increment to the thread adjacent where the thread enters the downstream process. All thread guide surfaces encountered by the thread after leaving the spool, and while the thread is under designed operating tension, are moving surfaces, such that the tensioned thread thereby experiences a reduced level of drag as the thread traverses its path of travel from the spool to the downstream process.
    Type: Application
    Filed: November 25, 2009
    Publication date: March 25, 2010
    Applicant: OverLand Technologies, LLC
    Inventor: Richard J. Hartzheim