Patents by Inventor James K. Mikulak

James K. Mikulak 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: 10695979
    Abstract: A consumable filament for use in an extrusion-based additive manufacturing system, where the consumable filament comprises a core portion of a first thermoplastic material, and a shell portion of a second thermoplastic material that is compositionally different from the first thermoplastic material, where the consumable filament is configured to be melted and extruded to form roads of a plurality of solidified layers of a three-dimensional object, and where the roads at least partially retain cross-sectional profiles corresponding to the core portion and the shell portion of the consumable filament.
    Type: Grant
    Filed: August 28, 2019
    Date of Patent: June 30, 2020
    Assignee: STRATASYS, INC.
    Inventors: James K. Mikulak, Carl R. Deckard, Robert L. Zinniel
  • Publication number: 20190381728
    Abstract: A consumable filament for use in an extrusion-based additive manufacturing system, where the consumable filament comprises a core portion of a first thermoplastic material, and a shell portion of a second thermoplastic material that is compositionally different from the first thermoplastic material, where the consumable filament is configured to be melted and extruded to form roads of a plurality of solidified layers of a three-dimensional object, and where the roads at least partially retain cross-sectional profiles corresponding to the core portion and the shell portion of the consumable filament.
    Type: Application
    Filed: August 28, 2019
    Publication date: December 19, 2019
    Inventors: James K. Mikulak, Carl R. Deckard, Robert L. Zinniel
  • Patent number: 10493695
    Abstract: A consumable filament for use in an extrusion-based additive manufacturing system, where the consumable filament comprises a core portion of a first thermoplastic material, and a shell portion of a second thermoplastic material that is compositionally different from the first thermoplastic material, where the consumable filament is configured to be melted and extruded to form roads of a plurality of solidified layers of a three-dimensional object, and where the roads at least partially retain cross-sectional profiles corresponding to the core portion and the shell portion of the consumable filament.
    Type: Grant
    Filed: July 25, 2017
    Date of Patent: December 3, 2019
    Assignee: STRATASYS, INC.
    Inventors: James K. Mikulak, Carl R. Deckard, Robert L. Zinniel
  • Publication number: 20190240869
    Abstract: A consumable polymeric based powder mixture may include a plurality of polymeric based particles that have a unitary construction. At least about 80% of the plurality of polymeric based particles may further have a generally cylindrical shape. The plurality of polymeric based particles may further have a particle length distribution span (PLDS) of not greater than about 1.2, where PLDS is equal to (L80?L20)/L50.
    Type: Application
    Filed: April 16, 2019
    Publication date: August 8, 2019
    Inventors: Vikram DEVARAJ, James K. MIKULAK, Carl R. DECKARD
  • Patent number: 10307935
    Abstract: A consumable polymeric based powder mixture may include a plurality of polymeric based particles that have a unitary construction. At least about 80% of the plurality of polymeric based particles may further have a generally cylindrical shape. The plurality of polymeric based particles may further have a particle length distribution span (PLDS) of not greater than about 1.2, where PLDS is equal to (L80?L20)/L50.
    Type: Grant
    Filed: December 21, 2016
    Date of Patent: June 4, 2019
    Assignee: Structured Polymers, Inc.
    Inventors: Vikram Devaraj, James K. Mikulak, Carl R. Deckard
  • Publication number: 20180281232
    Abstract: A consumable polymeric based powder mixture may include a plurality of polymeric based particles that have a unitary construction. At least about 80% of the plurality of polymeric based particles may further have a generally cylindrical shape. The plurality of polymeric based particles may further have a particle length distribution span (PLDS) of not greater than about 1.2, where PLDS is equal to (L80?L20)/L50.
    Type: Application
    Filed: December 21, 2016
    Publication date: October 4, 2018
    Inventors: Vikram DEVARAJ, James K. MIKULAK, Carl R. DECKARD
  • Publication number: 20170320266
    Abstract: A consumable filament for use in an extrusion-based additive manufacturing system, where the consumable filament comprises a core portion of a first thermoplastic material, and a shell portion of a second thermoplastic material that is compositionally different from the first thermoplastic material, where the consumable filament is configured to be melted and extruded to form roads of a plurality of solidified layers of a three-dimensional object, and where the roads at least partially retain cross-sectional profiles corresponding to the core portion and the shell portion of the consumable filament.
    Type: Application
    Filed: July 25, 2017
    Publication date: November 9, 2017
    Inventors: James K. Mikulak, Carl R. Deckard, Robert L. Zinniel
  • Patent number: 9738031
    Abstract: A consumable filament for use in an extrusion-based additive manufacturing system, where the consumable filament comprises a core portion of a first thermoplastic material, and a shell portion of a second thermoplastic material that is compositionally different from the first thermoplastic material, where the consumable filament is configured to be melted and extruded to form roads of a plurality of solidified layers of a three-dimensional object, and where the roads at least partially retain cross-sectional profiles corresponding to the core portion and the shell portion of the consumable filament.
    Type: Grant
    Filed: April 3, 2013
    Date of Patent: August 22, 2017
    Assignee: Stratasys, Inc.
    Inventors: James K. Mikulak, Carl R. Deckard, Robert L. Zinniel
  • Patent number: 8920697
    Abstract: A consumable filament for use in an extrusion-based additive manufacturing system, where the consumable filament comprises a core portion of a first thermoplastic material, and a shell portion of a second thermoplastic material that is compositionally different from the first thermoplastic material, where the consumable filament is configured to be melted and extruded to form roads of a plurality of solidified layers of a three-dimensional object, and where the roads at least partially retain cross-sectional profiles corresponding to the core portion and the shell portion of the consumable filament.
    Type: Grant
    Filed: March 14, 2012
    Date of Patent: December 30, 2014
    Assignee: Stratasys, Inc.
    Inventors: James K. Mikulak, Carl R. Deckard, Robert L. Zinniel
  • Patent number: 8801990
    Abstract: A consumable filament for use in an extrusion-based additive manufacturing system, where the consumable filament comprises a first portion of a first semi-crystalline polymeric material, and a second portion of a second semi-crystalline polymeric material, and where the second semi-crystalline polymeric material has a crystallization temperature that is greater than a crystallization temperature of the first semi-crystalline polymeric material.
    Type: Grant
    Filed: September 15, 2011
    Date of Patent: August 12, 2014
    Assignee: Stratasys, Inc.
    Inventors: James K. Mikulak, Carl R. Deckard
  • Publication number: 20120231225
    Abstract: A consumable filament for use in an extrusion-based additive manufacturing system, where the consumable filament comprises a core portion of a first thermoplastic material, and a shell portion of a second thermoplastic material that is compositionally different from the first thermoplastic material, where the consumable filament is configured to be melted and extruded to form roads of a plurality of solidified layers of a three-dimensional object, and where the roads at least partially retain cross-sectional profiles corresponding to the core portion and the shell portion of the consumable filament.
    Type: Application
    Filed: March 14, 2012
    Publication date: September 13, 2012
    Applicant: STRATASYS, INC.
    Inventors: James K. Mikulak, Carl R. Deckard, Robert L. Zinniel
  • Publication number: 20120070619
    Abstract: A consumable filament for use in an extrusion-based additive manufacturing system, where the consumable filament comprises a first portion of a first semi-crystalline polymeric material, and a second portion of a second semi-crystalline polymeric material, and where the second semi-crystalline polymeric material has a crystallization temperature that is greater than a crystallization temperature of the first semi-crystalline polymeric material.
    Type: Application
    Filed: September 15, 2011
    Publication date: March 22, 2012
    Applicant: STRATASYS, INC.
    Inventors: James K. Mikulak, Carl R. Deckard
  • Patent number: 5742656
    Abstract: A chip (12) counter (10) employs an ultrasonic distance measuring system (40) to determine the number of chips in a stack (54, 56) in a chip tray (16) channel (14). A computer (32) initially stores an average chip thickness (T) and receives distance data from the ultrasonic distance measuring system indicative of a first distance (D.sub.1) to the bottom of an empty channel. To count chips, the computer repeatedly receives data from the ultrasonic distance measuring system indicative of a second distance (D.sub.2) to the top of the stack of chips in the channel. The computer subtracts the second distance from the first distance to determine a height of the stack of chips and then divides the height by the average chip thickness to provide a continuous count of the number of chips in the channel. In a multichannel chip tray, each channel has a distance measuring transducer, and a multiplexer (28) scans all the transducers to provide the computer with second distance data for all channels in the chip tray.
    Type: Grant
    Filed: March 21, 1996
    Date of Patent: April 21, 1998
    Assignee: The Casino Software Corporation of America
    Inventors: James K. Mikulak, Paul H. Clark, Carey W. Starzinger, Barry H. Wong