Patents by Inventor David W. Lyndaker

David W. Lyndaker 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: 11164765
    Abstract: Die handling systems and methods of use for preparing or processing dies from multiple types of pre-expanded wafer materials. The die handling systems are configured in a modular fashion, allowing for concurrent processes to expand the wafers, process the wafers, extract the dies, and inspect the extracted dies without forcing one of the processes of the system to remain idle. Embodiments of the wafer handler module include a mechanism, such as an expander capable of stretching or expanding wafers having one or more different sizes to a pre-expanded state without interrupting the die handler. The pre-expanded wafers are stored as a proprietary cartridge and delivered to the die handler, where a pick head of the die handler removes each die of the pre-expanded wafer and delivers the extracted dies to subsequent machinery, such as a pick and place machine, for further processing.
    Type: Grant
    Filed: July 13, 2017
    Date of Patent: November 2, 2021
    Assignee: UNIVERSAL INSTRUMENTS CORPORATION
    Inventors: Michael Murray Yingling, Sean Michael Adams, David W. Lyndaker, Scott C. Proctor
  • Publication number: 20190252220
    Abstract: Die handling systems and methods of use for preparing or processing dies from multiple types of pre-expanded wafer materials. The die handling systems are configured in a modular fashion, allowing for concurrent processes to expand the wafers, process the wafers, extract the dies, and inspect the extracted dies without forcing one of the processes of the system to remain idle. Embodiments of the wafer handler module include a mechanism, such as an expander capable of stretching or expanding wafers having one or more different sizes to a pre-expanded state without interrupting the die handler. The pre-expanded wafers are stored as a proprietary cartridge and delivered to the die handler, where a pick head of the die handler removes each die of the pre-expanded wafer and delivers the extracted dies to subsequent machinery, such as a pick and place machine, for further processing.
    Type: Application
    Filed: July 13, 2017
    Publication date: August 15, 2019
    Inventors: Michael Murray Yingling, Sean Michael Adams, David W. Lyndaker, Scott C. Proctor
  • Patent number: 7220095
    Abstract: The present invention is a method and apparatus for the automatic loading and advancement of component feeder tape in a component feeder for use with a pick-and-place system. The feeder employs sensing technology to determine when a component tape leader is inserted into a tape guide, and subsequently auto-loads the feeder with the tape, including initiating the peeling of cover tape. Subsequently, the feeder operates to sense the presence of parts or components in the component tape pockets and to advance the component tape to a position where the first component is presented at the pick location. The feeder is also capable of detecting repeatable features in the component tape in order to automatically determine the component tape pitch.
    Type: Grant
    Filed: May 24, 2002
    Date of Patent: May 22, 2007
    Inventors: David W. Lyndaker, Peter M. Davis, John Piccone
  • Patent number: 6923878
    Abstract: The present invention is a method and apparatus conveying a roll of liner stock bearing removably adhered components such as labels. The liner is pulled through the feeder by a capstan drive having opposed fluted nip rollers driven by a stepper motor. Advance of the stepper motor is controlled by a programmable electronic controller. The linered labels are led through a tensioner and around an acute-angle peeler edge which separates the labels from the liner. The peeling action advances a label onto a platform comprising a bed of rollers having an inherently low-adherence surface. Preferably the rollers are undercut to form circumferential ridges and reduce the surface area in contact with the label adhesive and to minimize adherence thereto. When peeling of a label is completed, the label has been advanced onto the roller bed to precisely the proper location for acquisition by a pick-and-place machine.
    Type: Grant
    Filed: November 26, 2003
    Date of Patent: August 2, 2005
    Assignee: Delaware Capital Formation, Inc.
    Inventors: Peter Davis, Richard Howe, David W. Lyndaker, Scott Proctor
  • Publication number: 20040074582
    Abstract: The present invention is a method and apparatus conveying a roll of liner stock bearing removably adhered components such as labels. The liner is pulled through the feeder by a capstan drive having opposed fluted nip rollers driven by a stepper motor. Advance of the stepper motor is controlled by a programmable electronic controller. The linered labels are led through a tensioner and around an acute-angle peeler edge which separates the labels from the liner. The peeling action advances a label onto a platform comprising a bed of rollers having an inherently low-adherence surface. Preferably the rollers are undercut to form circumferential ridges and reduce the surface area in contact with the label adhesive and to minimize adherence thereto. When peeling of a label is completed, the label has been advanced onto the roller bed to precisely the proper location for acquisition by a pick-and-place machine.
    Type: Application
    Filed: November 26, 2003
    Publication date: April 22, 2004
    Applicant: Delaware Capital Formation, Inc.
    Inventors: Peter Davis, Richard Howe, David W. Lyndaker, Scott Proctor
  • Publication number: 20030219330
    Abstract: The present invention is a method and apparatus for the automatic loading and advancement of component feeder tape in a component feeder for use with a pick-and-place system. The feeder employs sensing technology to determine when a component tape leader is inserted into a tape guide, and subsequently auto-loads the feeder with the tape, including initiating the peeling of cover tape. Subsequently, the feeder operates to sense the presence of parts or components in the component tape pockets and to advance the component tape to a position where the first component is presented at the pick location. The feeder is also capable of detecting repeatable features in the component tape in order to automatically determine the component tape pitch.
    Type: Application
    Filed: May 24, 2002
    Publication date: November 27, 2003
    Inventors: David W. Lyndaker, Peter M. Davis
  • Publication number: 20030121607
    Abstract: The present invention is a method and apparatus conveying a roll of liner stock bearing removably adhered components such as labels. The liner is pulled through the feeder by a capstan drive having opposed fluted nip rollers driven by a stepper motor. Advance of the stepper motor is controlled by a programmable electronic controller. The linered labels are led through a tensioner and around an acute-angle peeler edge which separates the labels from the liner. The peeling action advances a label onto a platform comprising a bed of rollers having an inherently low-adherence surface. Preferably the rollers are undercut to form circumferential ridges and reduce the surface area in contact with the label adhesive and to minimize adherence thereto. When peeling of a label is completed, the label has been advanced onto the roller bed to precisely the proper location for acquisition by a pick-and-place machine.
    Type: Application
    Filed: April 14, 2000
    Publication date: July 3, 2003
    Inventors: Peter Davis, Richard Howe, David W. Lyndaker, Scott Proctor
  • Patent number: 6208943
    Abstract: An apparatus for calculating fluid flow in a channel including a very low profile probe which detects fluid depth in the channel; a mechanism for measuring average fluid velocity in the channel; a mechanism for correcting the detected fluid depth based upon the measured average fluid velocity to account for drawdown; and a mechanism for calculating average flow rate based upon the average fluid velocity measurement and the corrected fluid depth value. The probe has a height to width ratio of less than 0.52.
    Type: Grant
    Filed: November 19, 1997
    Date of Patent: March 27, 2001
    Assignee: American Sigma, Inc.
    Inventors: Gary L. Randolph, Donald F. Kaiser, John Liebe, David W. Lyndaker, Michael D. Steen, Anthony J. Tavano