Patents by Inventor William J. Renski

William J. Renski 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: 10060100
    Abstract: A ground engaging tooth assembly for a cutting edge of a ground engaging implement may include an adapter and a ground engaging tip. The adapter may have a forward extending adapter nose having an inverted or reverse keystone-shaped contour, with the ground engaging tip having a nose cavity for receiving the adapter nose and exterior surfaces having complementary shapes to the adapter nose. The adapter nose and an adapter cavity of the tip may also be configured with complimentary surfaces that increase retention between the adapter nose and the tip when downward forces are applied to the tip. In other embodiments, the surfaces of the tip may include reliefs extending inwardly into the body of the tip to reduce weight and facilitate penetration of the tip into work material as wear material wears away from a front edge of the tip.
    Type: Grant
    Filed: December 1, 2016
    Date of Patent: August 28, 2018
    Assignee: Caterpillar Inc.
    Inventors: William J. Renski, James Robert Lahood, Thomas Marshall Congdon
  • Patent number: 10041230
    Abstract: A ground engaging tip of a tooth assembly for a base edge of a ground engaging implement, is provided, wherein the tooth assembly includes an adapter configured for attachment to a base edge of the ground engaging implement and having a forwardly extending adapter nose. The ground engaging tip may have a substantially keystone-shaped contour providing additional wear material at the top surface for use in top-wearing earth moving applications.
    Type: Grant
    Filed: October 11, 2016
    Date of Patent: August 7, 2018
    Assignee: Caterpillar Inc.
    Inventors: William J. Renski, James Robert Lahood
  • Patent number: 9624651
    Abstract: A ground engaging tip of a tooth assembly for a base edge of a ground engaging implement, is provided, wherein the tooth assembly includes an adapter configured for attachment to a base edge of the ground engaging implement and having a forwardly extending adapter nose. In various embodiments, the ground engaging tip is configured for digging into work material in diverse earth moving environments.
    Type: Grant
    Filed: April 27, 2015
    Date of Patent: April 18, 2017
    Assignee: Caterpillar Inc.
    Inventors: William J. Renski, James Robert LaHood, Sudha Kottakapu, Thomas Marshall Congdon
  • Publication number: 20170081828
    Abstract: A ground engaging tooth assembly for a cutting edge of a ground engaging implement may include an adapter and a ground engaging tip. The adapter may have a forward extending adapter nose having an inverted or reverse keystone-shaped contour, with the ground engaging tip having a nose cavity for receiving the adapter nose and exterior surfaces having complementary shapes to the adapter nose. The adapter nose and an adapter cavity of the tip may also be configured with complimentary surfaces that increase retention between the adapter nose and the tip when downward forces are applied to the tip. In other embodiments, the surfaces of the tip may include reliefs extending inwardly into the body of the tip to reduce weight and facilitate penetration of the tip into work material as wear material wears away from a front edge of the tip.
    Type: Application
    Filed: December 1, 2016
    Publication date: March 23, 2017
    Applicant: CATERPILLAR INC.
    Inventors: William J. Renski, James Robert Lahood, Thomas Marshall Congdon
  • Publication number: 20170081827
    Abstract: A ground engaging tip of a tooth assembly for a base edge of a ground engaging implement, is provided, wherein the tooth assembly includes an adapter configured for attachment to a base edge of the ground engaging implement and having a forwardly extending adapter nose. The ground engaging tip may have a substantially keystone-shaped contour providing additional wear material at the top surface for use in top-wearing earth moving applications.
    Type: Application
    Filed: October 11, 2016
    Publication date: March 23, 2017
    Applicant: Caterpillar Inc.
    Inventors: William J. RENSKI, James Robert LAHOOD
  • Patent number: 9546471
    Abstract: A ground engaging tooth assembly for a cutting edge of a ground engaging implement may include an adapter and a ground engaging tip. The adapter may have a forward extending adapter nose having an inverted or reverse keystone-shaped contour, with the ground engaging tip having a nose cavity for receiving the adapter nose and exterior surfaces having complementary shapes to the adapter nose. The adapter nose and an adapter cavity of the tip may also be configured with complimentary surfaces that increase retention between the adapter nose and the tip when downward forces are applied to the tip. In other embodiments, the surfaces of the tip may include reliefs extending inwardly into the body of the tip to reduce weight and facilitate penetration of the tip into work material as wear material wears away from a front edge of the tip.
    Type: Grant
    Filed: December 19, 2014
    Date of Patent: January 17, 2017
    Assignee: Caterpillar Inc.
    Inventors: William J. Renski, James Robert Lahood, Thomas Marshall Congdon
  • Patent number: 9528248
    Abstract: A ground engaging tip of a tooth assembly for a base edge of a ground engaging implement, is provided, wherein the tooth assembly includes an adapter configured for attachment to a base edge of the ground engaging implement and having a forwardly extending adapter nose. The ground engaging tip may have a substantially keystone-shaped contour providing additional wear material at the top surface for use in top-wearing earth moving applications.
    Type: Grant
    Filed: December 19, 2014
    Date of Patent: December 27, 2016
    Assignee: Caterpillar Inc.
    Inventors: William J. Renski, James Robert LaHood
  • Patent number: 9428886
    Abstract: A ground engaging tip of a tooth assembly for a base edge of a ground engaging implement, is provided, wherein the tooth assembly includes an adapter configured for attachment to a base edge of the ground engaging implement and having a forwardly extending adapter nose. The adapter nose and an adapter cavity of the tip may be configured with surfaces to increase retention when downward forces are applied to the tip.
    Type: Grant
    Filed: September 22, 2014
    Date of Patent: August 30, 2016
    Assignee: Caterpillar Inc.
    Inventors: William J. Renski, James Robert LaHood
  • Publication number: 20150233095
    Abstract: A ground engaging tip of a tooth assembly for a base edge of a ground engaging implement, is provided, wherein the tooth assembly includes an adapter configured for attachment to a base edge of the ground engaging implement and having a forwardly extending adapter nose. In various embodiments, the ground engaging tip is configured for digging into work material in diverse earth moving environments.
    Type: Application
    Filed: April 27, 2015
    Publication date: August 20, 2015
    Inventors: William J. Renski, James Robert LaHood, Sudha Kottakapu, Thomas Marshall Congdon
  • Patent number: 9062436
    Abstract: A ground engaging tip of a tooth assembly for a base edge of a ground engaging implement, is provided, wherein the tooth assembly includes an adapter configured for attachment to a base edge of the ground engaging implement and having a forwardly extending adapter nose. The adapter nose and an adapter cavity of the tip may be configured with surfaces to increase retention when downward forces are applied to the tip.
    Type: Grant
    Filed: October 4, 2012
    Date of Patent: June 23, 2015
    Assignee: Caterpillar Inc.
    Inventors: William J. Renski, James Robert Lahood
  • Patent number: 9057177
    Abstract: A ground engaging tip of a tooth assembly for a base edge of a ground engaging implement, is provided, wherein the tooth assembly includes an adapter configured for attachment to a base edge of the ground engaging implement and having a forwardly extending adapter nose. In various embodiments, the ground engaging tip is configured for digging into work material in diverse earth moving environments.
    Type: Grant
    Filed: October 4, 2012
    Date of Patent: June 16, 2015
    Assignee: Caterpillar Inc.
    Inventors: William J. Renski, James Robert LaHood, Sudha Kottakapu, Thomas Marshall Congdon
  • Patent number: 9057176
    Abstract: A retention system for a ground-engaging tool includes a pin. The pin may include a shaft extending along a longitudinal axis of the pin; a radial projection extending from a first end of the shaft; and a head disposed at a second end of the shaft, the head having a non-circular axial cross-section. The system may also include a retainer collar. The collar may include an annular wall surrounding a recess configured to receive the first end of the shaft; an axial slot in an inner surface of the annular wall, the axial slot extending from a first end of the annular wall inward and being configured to receive the radial projection; and a circumferential slot connected to the axial slot in the inner surface of the annular wall, the circumferential slot being configured to receive the radial projection of the pin.
    Type: Grant
    Filed: June 27, 2012
    Date of Patent: June 16, 2015
    Assignee: Caterpillar Inc.
    Inventor: William J. Renski
  • Patent number: D748679
    Type: Grant
    Filed: February 12, 2015
    Date of Patent: February 2, 2016
    Assignee: Caterpillar Inc.
    Inventors: William J. Renski, James Robert Lahood
  • Patent number: D748681
    Type: Grant
    Filed: February 17, 2015
    Date of Patent: February 2, 2016
    Assignee: Caterpillar Inc.
    Inventors: William J. Renski, Thomas Marshall Congdon
  • Patent number: D748682
    Type: Grant
    Filed: February 19, 2015
    Date of Patent: February 2, 2016
    Assignee: Caterpillar Inc.
    Inventors: William J. Renski, James Robert LaHood
  • Patent number: D748683
    Type: Grant
    Filed: February 23, 2015
    Date of Patent: February 2, 2016
    Assignee: Caterpillar Inc.
    Inventors: William J. Renski, Sudha Kottakapu
  • Patent number: D748684
    Type: Grant
    Filed: February 23, 2015
    Date of Patent: February 2, 2016
    Assignee: Caterpillar Inc.
    Inventors: William J. Renski, Thomas Marshall Congdon
  • Patent number: D749145
    Type: Grant
    Filed: February 13, 2015
    Date of Patent: February 9, 2016
    Assignee: Caterpillar Inc.
    Inventors: William J. Renski, James Robert LaHood
  • Patent number: D749146
    Type: Grant
    Filed: February 19, 2015
    Date of Patent: February 9, 2016
    Assignee: Caterpillar Inc.
    Inventors: William J. Renski, Sudha Kottakapu
  • Patent number: D784424
    Type: Grant
    Filed: December 15, 2015
    Date of Patent: April 18, 2017
    Assignee: Caterpillar Inc.
    Inventors: William J. Renski, James Robert Lahood