Patents by Inventor Stephen J. Pierz

Stephen J. Pierz 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: 9826115
    Abstract: A method of forming a three-dimensional article includes sequentially forming a plurality of first two-dimensional layers and a second two-dimensional layer. The second two-dimensional layer includes a second outer edge and a second inner area within the boundary defined by the second outer edge. The second inner area includes uniform physical characteristic and a watermark area within the second inner area having a physical characteristic different from that of the second inner area. An article includes a body with an inner area having a physical characteristic. A watermark is within the inner area and has a physical characteristic different from the physical characteristic of the inner area.
    Type: Grant
    Filed: May 13, 2016
    Date of Patent: November 21, 2017
    Assignee: Caterpillar Inc.
    Inventors: Eric D. Misfeldt, Mark T. Allott, Stephen J. Pierz
  • Publication number: 20170058509
    Abstract: A structure is provided. The structure includes a first component disposed in the first plane. The structure also includes a second component extending from the first component and disposed in a second plane. The second plane is inclined at an angle with respect to the first plane. Each of the first component and the second component are constructed by forming layers parallel to each other using an additive manufacturing process.
    Type: Application
    Filed: September 2, 2015
    Publication date: March 2, 2017
    Applicant: Caterpillar Inc.
    Inventors: James L. Babin, John Sherman, Stephen J. Pierz, Christopher M. Sketch, Joseph M. Spanier, Andrew D. Meinert, Todd D. Crawford, Matthew T. West
  • Patent number: 9487046
    Abstract: A non-pneumatic tire may include a hub configured to be coupled to a machine, with the hub having a rotational axis about which the tire is configured to roll. The tire may also include a support structure including an inner circumferential portion associated with the hub and an outer circumferential portion radially spaced from the inner circumferential portion. The support structure may extend between opposed, axially-spaced side edges of the tire, and the support structure may include a plurality of cavities. The tire may also include a tread portion associated with the outer circumferential portion. The support structure may also include a plurality of layers of elastomeric material each having opposing faces lying in opposing planes substantially perpendicular to the rotational axis. At least some of the layers may include apertures corresponding to the cavities, and the layers may be chemically bonded to one another.
    Type: Grant
    Filed: July 18, 2014
    Date of Patent: November 8, 2016
    Assignee: Caterpillar Inc.
    Inventors: Aaron K. Amstutz, Stephen J. Pierz, Thierry A. Marchione, Kevin L. Martin
  • Publication number: 20160259324
    Abstract: A method of guiding deposition of a material to form a Three Dimensional (3D) structure is disclosed. The method includes generating a tool path based on a digital model of the 3D structure via a controller and communicating the tool path to a guiding device. The method further includes generating a guiding path on a work surface via the guiding device based on the tool path and depositing the material along the guiding path via a tool member.
    Type: Application
    Filed: March 5, 2015
    Publication date: September 8, 2016
    Applicant: Caterpillar Inc.
    Inventors: Christopher M. Sketch, Joseph M. Spanier, Todd D. Crawford, Andrew D. Meinert, Stephen J. Pierz, James L. Babin, John A. Sherman
  • Publication number: 20160255237
    Abstract: A method of forming a three-dimensional article includes sequentially forming a plurality of first two-dimensional layers and a second two-dimensional layer. The second two-dimensional layer includes a second outer edge and a second inner area within the boundary defined by the second outer edge. The second inner area includes uniform physical characteristic and a watermark area within the second inner area having a physical characteristic different from that of the second inner area. An article includes a body with an inner area having a physical characteristic. A watermark is within the inner area and has a physical characteristic different from the physical characteristic of the inner area.
    Type: Application
    Filed: May 13, 2016
    Publication date: September 1, 2016
    Applicant: Caterpillar Inc.
    Inventors: Eric D. Misfeldt, Mark T. Allott, Stephen J. Pierz
  • Patent number: 9387637
    Abstract: A method for molding a non-pneumatic tire includes placing a hub into a lower mold portion, and associating at least one temperature sensor with the lower mold portion. The method further includes placing an upper mold portion onto the lower mold portion and the hub, heating the mold assembly, heating a molding material, and transferring the heated molding material into the interior of the mold assembly. The method further includes heating the mold assembly and molding material until the at least one temperature sensor indicates that the molding material has reached a first temperature, and maintaining the temperature of the molding material at the first temperature for a first predetermined period of time. The method further includes reducing the temperature of the molding material to a second temperature after the first predetermined period of time, and separating the upper mold portion and molded tire from the lower mold portion.
    Type: Grant
    Filed: September 7, 2012
    Date of Patent: July 12, 2016
    Assignee: Caterpillar Inc.
    Inventors: Kevin L. Martin, Aaron K. Amstutz, David J. Colantoni, Stephen J. Pierz, Kevin D. Kempa
  • Patent number: 9374497
    Abstract: A method of forming a three-dimensional article includes sequentially forming a plurality of first two-dimensional layers and a second two-dimensional layer. The second two-dimensional layer includes a second outer edge and a second inner area within the boundary defined by the second outer edge. The second inner area includes uniform physical characteristic and a watermark area within the second inner area having a physical characteristic different from that of the second inner area. An article includes a body with an inner area having a physical characteristic. A watermark is within the inner area and has a physical characteristic different from the physical characteristic of the inner area.
    Type: Grant
    Filed: October 20, 2014
    Date of Patent: June 21, 2016
    Assignee: Caterpillar Inc.
    Inventors: Eric D. Misfeldt, Mark T. Allott, Stephen J. Pierz
  • Publication number: 20160112601
    Abstract: A method of forming a three-dimensional article includes sequentially forming a plurality of first two-dimensional layers and a second two-dimensional layer. The second two-dimensional layer includes a second outer edge and a second inner area within the boundary defined by the second outer edge. The second inner area includes uniform physical characteristic and a watermark area within the second inner area having a physical characteristic different from that of the second inner area. An article includes a body with an inner area having a physical characteristic. A watermark is within the inner area and has a physical characteristic different from the physical characteristic of the inner area.
    Type: Application
    Filed: October 20, 2014
    Publication date: April 21, 2016
    Applicant: CATERPILLAR INC.
    Inventors: Eric D. Misfeldt, Mark T. Allott, Stephen J. Pierz
  • Publication number: 20160016433
    Abstract: A non-pneumatic tire may include a hub configured to be coupled to a machine, with the hub having a rotational axis about which the tire is configured to roll. The tire may also include a support structure including an inner circumferential portion associated with the hub and an outer circumferential portion radially spaced from the inner circumferential portion. The support structure may extend between opposed, axially-spaced side edges of the tire, and the support structure may include a plurality of cavities. The tire may also include a tread portion associated with the outer circumferential portion. The support structure may also include a plurality of layers of elastomeric material each having opposing faces lying in opposing planes substantially perpendicular to the rotational axis. At least some of the layers may include apertures corresponding to the cavities, and the layers may be chemically bonded to one another.
    Type: Application
    Filed: July 18, 2014
    Publication date: January 21, 2016
    Applicant: CATERPILLAR INC.
    Inventors: Aaron K. AMSTUTZ, Stephen J. PIERZ, Thierry A. MARCHIONE, Kevin L. MARTIN
  • Patent number: 9180737
    Abstract: A molded tire may include a support structure having an inner circumferential portion and an outer circumferential portion. The inner circumferential portion may be configured to be associated with a hub. The molded tire may also include a tread portion associated with the outer circumferential portion of the support structure, wherein the tread portion may be formed from a first polyurethane having first material characteristics. The support structure may be formed from a second polyurethane having second material characteristics different than the first material characteristics. The support structure may be chemically bonded to the tread portion.
    Type: Grant
    Filed: April 18, 2013
    Date of Patent: November 10, 2015
    Assignee: Caterpillar Inc.
    Inventors: Aaron K. Amstutz, Kevin L. Martin, Stephen J. Pierz, David J. Colantoni
  • Patent number: 9162407
    Abstract: A reservoir for catching a portion of overflow of molding material from a non-pneumatic tire mold during molding includes a tubular portion having a proximal end and a distal end, and a flange associated with the proximal end of the tubular portion. The flange is configured to be associated with a surface of the tire mold, such that the tubular portion extends substantially perpendicular to the surface of the tire mold. The reservoir further includes a reservoir portion configured to be removably mounted around the tubular portion. The reservoir portion includes a base having an aperture configured to receive the tubular portion, and a wall configured such that molding material flowing from the distal end of the tubular portion is received in the reservoir portion.
    Type: Grant
    Filed: September 7, 2012
    Date of Patent: October 20, 2015
    Assignee: Caterpillar Inc.
    Inventors: Kevin L. Martin, David J. Colantoni, Stephen J. Pierz
  • Publication number: 20150192919
    Abstract: A method for three dimensional printing of a large sized object is provided. The method includes creating a three dimensional model associated with the object to be printed and analyzing a geometry of the three dimensional model. The method also includes placing seams on a deflated support member to form pathways on the support member such that the pathways are formed based on the analyzed geometry of the three dimensional model. The method further includes introducing a pressurized fluid into the pathways and further inflating the support member to conform to the analyzed geometry. The inflation is done to a predetermined pressurized geometry associated with the support member. The method also includes supporting the three dimensional printing of the object by the inflated support member. The inflated support member is configured to prevent at least one of an overhanging or a collapse of materials of the object prior to solidification.
    Type: Application
    Filed: March 24, 2015
    Publication date: July 9, 2015
    Applicant: Caterpillar Inc.
    Inventors: Christopher M. Sketch, Andrew D. Meinert, Joshua D. Webb, John Sherman, James L. Babin, Todd D. Crawford, Stephen J. Pierz, Joseph Spanier
  • Publication number: 20150034222
    Abstract: A non-pneumatic tire may include a support structure having an inner circumferential portion configured to be associated with a hub. The tire may further include a tread portion associated with an outer circumferential portion of the support structure. The tire may also include at least one sensor associated with at least one of the support structure and the tread portion and configured to generate signals indicative of at least one characteristic associated with at least one of the support structure and the tread portion. The tire may further include a receiver associated with at least one of the support structure and the tread portion and configured to receive signals from the at least one sensor. The tire may also include a transmitter associated with at least one of the support structure and the tread portion and configured to transmit the signals to a location remote from the tire.
    Type: Application
    Filed: July 30, 2013
    Publication date: February 5, 2015
    Applicant: CATERPILLAR INC.
    Inventors: KEVIN L. MARTIN, Matthew J. Behmlander, Jeremy R. Hammar, David J. Colantoni, Stephen J. Pierz, Trent J. Cleveland
  • Publication number: 20140311643
    Abstract: A molded tire may include a support structure having an inner circumferential portion and an outer circumferential portion. The inner circumferential portion may be configured to be associated with a hub. The molded tire may also include a tread portion associated with the outer circumferential portion of the support structure, wherein the tread portion may be formed from a first polyurethane having first material characteristics. The support structure may be formed from a second polyurethane having second material characteristics different than the first material characteristics. The support structure may be chemically bonded to the tread portion.
    Type: Application
    Filed: April 18, 2013
    Publication date: October 23, 2014
    Applicant: Caterpillar Inc.
    Inventors: Aaron K. Amstutz, Kevin L. Martin, Stephen J. Pierz, David J. Colantoni
  • Publication number: 20140070439
    Abstract: A method for molding a non-pneumatic tire includes placing a hub into a lower mold portion, and associating at least one temperature sensor with the lower mold portion. The method further includes placing an upper mold portion onto the lower mold portion and the hub, heating the mold assembly, heating a molding material, and transferring the heated molding material into the interior of the mold assembly. The method further includes heating the mold assembly and molding material until the at least one temperature sensor indicates that the molding material has reached a first temperature, and maintaining the temperature of the molding material at the first temperature for a first predetermined period of time. The method further includes reducing the temperature of the molding material to a second temperature after the first predetermined period of time, and separating the upper mold portion and molded tire from the lower mold portion.
    Type: Application
    Filed: September 7, 2012
    Publication date: March 13, 2014
    Inventors: Kevin L. Martin, Aaron K. Amstutz, David J. Colantoni, Stephen J. Pierz, Kevin D. Kempa
  • Publication number: 20140070448
    Abstract: A reservoir for catching a portion of overflow of molding material from a non-pneumatic tire mold during molding includes a tubular portion having a proximal end and a distal end, and a flange associated with the proximal end of the tubular portion. The flange is configured to be associated with a surface of the tire mold, such that the tubular portion extends substantially perpendicular to the surface of the tire mold. The reservoir further includes a reservoir portion configured to be removably mounted around the tubular portion. The reservoir portion includes a base having an aperture configured to receive the tubular portion, and a wall configured such that molding material flowing from the distal end of the tubular portion is received in the reservoir portion.
    Type: Application
    Filed: September 7, 2012
    Publication date: March 13, 2014
    Inventors: Kevin L. MARTIN, David J. Colantoni, Stephen J. Pierz
  • Publication number: 20140070460
    Abstract: A system for separating a molded non-pneumatic tire from a tire mold is disclosed. The tire mold includes a lower mold portion and an upper mold portion configured to be associated with the lower mold portion, such that a hub associated with the non-pneumatic tire is confined between the lower and upper mold portions. The system includes a plurality of actuators associated with at least one of an inner diameter and an outer periphery of at least one of the lower mold portion and the upper mold portion, such that the plurality of actuators are spaced circumferentially about the tire mold. The system further includes a manifold providing flow communication with each of the plurality of actuators, and an operator interface associated with the manifold. The operator interface is configured to facilitate activation of all of the plurality of actuators simultaneously and independently from one another.
    Type: Application
    Filed: September 7, 2012
    Publication date: March 13, 2014
    Inventors: Kevin L. Martin, David J. Colantoni, Stephen J. Pierz, Kevin D. Kempa
  • Patent number: 8636490
    Abstract: A system for molding a non-pneumatic tire includes a lower mold portion including a lower face plate configured to provide a lower relief corresponding to a first side of the tire. The lower mold portion also includes a plurality of lower projections extending from the lower face plate and configured to correspond to cavities in the first side of the tire, wherein the lower projections taper as the lower projections extend from the lower face plate, and wherein at least some of the lower projections are hollow. The system further includes an upper mold portion configured to be coupled to the lower mold portion. The lower mold portion and the upper mold portion are configured to be coupled to one another, such that a hub associated with the tire provides a seal between the lower mold portion and the upper mold portion.
    Type: Grant
    Filed: September 7, 2012
    Date of Patent: January 28, 2014
    Assignee: Caterpillar Inc.
    Inventors: Kevin L. Martin, Aaron K. Amstutz, David J. Colantoni, Stephen J. Pierz
  • Publication number: 20100106415
    Abstract: A system and method for analyzing a route location is provided. The system has a position determining system for identifying a route location, a data measurement system on a machine for obtaining a route parameter at the route location at a first time and a route parameter at the route location at a second time; a data storage system for storing the route parameters; and a comparator for detecting a change in the route parameters over time.
    Type: Application
    Filed: October 28, 2008
    Publication date: April 29, 2010
    Applicant: CATERPILLAR INC.
    Inventors: Stephen J. Pierz, Leslie J. Paulson
  • Publication number: 20090236146
    Abstract: An improved machine and method of horizontal drilling is disclosed wherein the machine includes a device for producing a continuous length of conduit that surrounds the drill string for simultaneous boring and positioning of the conduit.
    Type: Application
    Filed: March 19, 2008
    Publication date: September 24, 2009
    Applicant: CATERPILLAR INC.
    Inventor: Stephen J. Pierz