Patents by Inventor Derek J. Krueger

Derek J. Krueger 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).

  • Threaded fastener
    Patent number: 10823220
    Abstract: A threaded fastener is provided. The threaded fastener includes a shank having a non-threaded portion and a threaded portion. A tip extends from the threaded portion and a head extends from the non-threaded portion. A plurality of wings extend from the shank and are configured to form a passage as the threaded fastener advances. An enlarged portion is configured to seat in the passage formed by the plurality of wings with the threaded fastener in an installed arrangement.
    Type: Grant
    Filed: January 16, 2018
    Date of Patent: November 3, 2020
    Assignee: Altenloh, Brinck & Co. U.S. Inc.
    Inventor: Derek J. Krueger
  • Roof cover fastener
    Patent number: 10781845
    Abstract: A roof cover fastener may include a cover plate having a planar body with a perimeter. A central aperture may be disposed centrally in the body. A first annular rib may be formed into the body and may encircle the central aperture. A second annular rib may be formed into the body and may encircle the first annular rib. A first channel may separate the first annular rib from the second annular rib. A medial aperture may be disposed in the channel between the first annular rib and the second annular rib. Optionally, the fastener may also include an auger element having a first end and a second end. A head may be coupled to the first end, and a tip may be coupled to the second end. A thread crest with a thread root may extend from the second end towards the first end.
    Type: Grant
    Filed: December 20, 2018
    Date of Patent: September 22, 2020
    Assignee: Celcore Incorporated
    Inventors: William R. MacDonald, Peter C. Garrigus, Derek J. Krueger
  • ROOF COVER FASTENER
    Publication number: 20190145453
    Abstract: A roof cover fastener may include a cover plate having a planar body with a perimeter. A central aperture may be disposed centrally in the body. A first annular rib may be formed into the body and may encircle the central aperture. A second annular rib may be formed into the body and may encircle the first annular rib. A first channel may separate the first annular rib from the second annular rib. A medial aperture may be disposed in the channel between the first annular rib and the second annular rib. Optionally, the fastener may also include an auger element having a first end and a second end. A head may be coupled to the first end, and a tip may be coupled to the second end. A thread crest with a thread root may extend from the second end towards the first end.
    Type: Application
    Filed: December 20, 2018
    Publication date: May 16, 2019
    Applicant: Celcore Incorporated
    Inventors: William R. Mac Donald, Peter C. Garrigus, Derek J. Krueger
  • Roof cover fastener
    Patent number: 10190616
    Abstract: A roof cover fastener may include a cover plate having a planar body with a perimeter. A central aperture may be disposed centrally in the body. A first annular rib may be formed into the body and may encircle the central aperture. A second annular rib may be formed into the body and may encircle the first annular rib. A first channel may separate the first annular rib from the second annular rib. A medial aperture may be disposed in the channel between the first annular rib and the second annular rib. The fastener may also include an auger element having a first end and a second end. A head may be coupled to the first end, and a tip may be coupled to the second end. A thread crest with a thread root may extend from the second end towards the first end.
    Type: Grant
    Filed: January 2, 2017
    Date of Patent: January 29, 2019
    Assignee: CELCORE INCORPORATED
    Inventors: William R. MacDonald, Peter C. Garrigus, Derek J. Krueger
  • Threaded Fastener
    Publication number: 20180202479
    Abstract: A threaded fastener is provided. The threaded fastener includes a shank having a non-threaded portion and a threaded portion. A tip extends from the threaded portion and a head extends from the non-threaded portion. A plurality of wings extend from the shank and are configured to form a passage as the threaded fastener advances. An enlarged portion is configured to seat in the passage formed by the plurality of wings with the threaded fastener in an installed arrangement.
    Type: Application
    Filed: January 16, 2018
    Publication date: July 19, 2018
    Applicant: Altenloh, Brinck & Co. U.S. Inc.
    Inventor: Derek J. Krueger
  • ROOF COVER FASTENER
    Publication number: 20170191519
    Abstract: A roof cover fastener may include a cover plate having a planar body with a perimeter. A central aperture may be disposed centrally in the body. A first annular rib may be formed into the body and may encircle the central aperture. A second annular rib may be formed into the body and may encircle the first annular rib. A first channel may separate the first annular rib from the second annular rib. A medial aperture may be disposed in the channel between the first annular rib and the second annular rib. The fastener may also include an auger element having a first end and a second end. A head may be coupled to the first end, and a tip may be coupled to the second end. A thread crest with a thread root may extend from the second end towards the first end.
    Type: Application
    Filed: January 2, 2017
    Publication date: July 6, 2017
    Applicant: Celcore Incorporated
    Inventors: William R. Mac Donald, Peter C. Garrigus, Derek J. Krueger