Patents by Inventor Craig Krull

Craig Krull 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: 10443655
    Abstract: A combination bearing and seal assembly includes a tubular outer body connectable with an outer member and having first and second axial ends, opposing inner and outer surfaces and a bearing outer raceway on the outer body inner surface. A tubular inner body is disposed within an outer body bore and is disposeable about and coupleable with the rotatable member. The inner body has inner and outer surfaces, opposing outer and inner axial ends, the inner axial end providing a generally radial seal contact surface, and a bearing inner raceway on the inner body outer surface. Rolling elements disposed between the outer and inner raceways rotatably couple the outer and inner bodies and form a bearing. An annular seal is within the outer body bore, is coupled with the tubular outer body and has a generally radial sealing surface sealingly engageable with the inner body contact surface.
    Type: Grant
    Filed: September 11, 2017
    Date of Patent: October 15, 2019
    Assignees: Kaydon Ring & Seal, Inc., Aktiebolaget SKF
    Inventors: Jeffrey Becker, George Haynes, Craig Krull, Marco Mourglia
  • Patent number: 10385921
    Abstract: A combination bearing and seal assembly includes a tubular inner body disposable about a shaft so rotate about an axis and has a first outer circumferential surface section providing an inner bearing race and a second outer circumferential surface section spaced axially from the first surface section and providing a seal engagement surface. A tubular outer body is disposed about the inner body and has an inner circumferential surface section providing a bearing outer race and rolling elements are disposed between the two races to form a bearing. A seal member(s) form an annular seal between the inner and outer bodies and is spaced axially from the bearing. The seal member(s) have inner sealing surface(s) engageable with the inner body engagement surface when the inner body is generally stationary and the seal is configured to displace radially outwardly from the engagement surface when the inner body rotates about the axis.
    Type: Grant
    Filed: March 3, 2017
    Date of Patent: August 20, 2019
    Assignees: Aktiebolaget SKF, Kaydon Ring & Seal, Inc.
    Inventors: Jeffrey Becker, George Haynes, Craig Krull
  • Publication number: 20190078621
    Abstract: A combination bearing and seal assembly includes a tubular outer body connectable with an outer member and having first and second axial ends, opposing inner and outer surfaces and a bearing outer raceway on the outer body inner surface. A tubular inner body is disposed within an outer body bore and is disposeable about and coupleable with the rotatable member. The inner body has inner and outer surfaces, opposing outer and inner axial ends, the inner axial end providing a generally radial seal contact surface, and a bearing inner raceway on the inner body outer surface. Rolling elements disposed between the outer and inner raceways rotatably couple the outer and inner bodies and form a bearing. An annular seal is within the outer body bore, is coupled with the tubular outer body and has a generally radial sealing surface sealingly engageable with the inner body contact surface.
    Type: Application
    Filed: September 11, 2017
    Publication date: March 14, 2019
    Inventors: Jeffrey Becker, George Haynes, Craig Krull, Marco Mourglia
  • Publication number: 20180202494
    Abstract: A combination bearing and seal assembly includes a tubular inner body disposeable about a shaft so rotate about an axis and has a first outer circumferential surface section providing an inner bearing race and a second outer circumferential surface section spaced axially from the first surface section and providing a seal engagement surface. A tubular outer body is disposed about the inner body and has an inner circumferential surface section providing a bearing outer race and rolling elements are disposed between the two races to form a bearing. A seal member(s) form an annular seal between the inner and outer bodies and is spaced axially from the bearing. The seal member(s) have inner sealing surface(s) engageable with the inner body engagement surface when the inner body is generally stationary and the seal is configured to displace radially outwardly from the engagement surface when the inner body rotates about the axis.
    Type: Application
    Filed: March 3, 2017
    Publication date: July 19, 2018
    Inventors: Jeffrey Becker, George Haynes, Craig Krull