Patents by Inventor Henry T. Dombroski

Henry T. Dombroski 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).

  • Sealed removable spindle for a spring axle
    Patent number: 11225106
    Abstract: A removable spindle assembly improvement comprised of a spindle housing end unit having a threaded cavity. A corresponding threaded removable spindle is torqued into the threaded cavity. The spindle has a tapered section that includes O-rings for creating a seal along the corresponding section of the cavity to prevent corrosion which assists in the elimination of spindle seizure within the spindle housing end unit's cavity. The spindle housing end unit's housing includes at least two threaded apertures that cooperate with sealed set screws for securing the spindle in place during operation. The set screws are placed apart at an odd number of 15 degree increments. This assembly facilitates easy removal and replacement of a spindle on a spring axle.
    Type: Grant
    Filed: April 17, 2020
    Date of Patent: January 18, 2022
    Inventors: Henry T. Dombroski, Anthony Cunningham
  • Sealed removable spindle for a spring axle
    Publication number: 20200238758
    Abstract: A removable spindle assembly improvement comprised of a spindle housing end unit having a threaded cavity. A corresponding threaded removable spindle is torqued into the threaded cavity. The spindle has a tapered section that includes O-rings for creating a seal along the corresponding section of the cavity to prevent corrosion which assists in the elimination of spindle seizure within the spindle housing end unit's cavity. The spindle housing end unit's housing includes at least two threaded apertures that cooperate with sealed set screws for securing the spindle in place during operation. The set screws are placed apart at an odd number of 15 degree increments. This assembly facilitates easy removal and replacement of a spindle on a spring axle.
    Type: Application
    Filed: April 17, 2020
    Publication date: July 30, 2020
    Inventors: Henry T. Dombroski, Anthony Cunningham
  • Sealed removable spindle for a spring axle
    Publication number: 20200171883
    Abstract: A removable spindle assembly improvement comprised of a spindle housing end unit having a threaded cavity. A corresponding threaded removable spindle is torqued into the threaded cavity. The spindle has a tapered section that includes O-rings for creating a seal along the corresponding section of the cavity to prevent corrosion which assists in the elimination of spindle seizure within the spindle housing end unit's cavity. The spindle assembly has an interlocking key assembly that assists in securing the spindle. The spindle housing end unit's housing includes a threaded aperture that cooperates with a sealed set screw for securing the spindle in place during operation. This assembly facilitates easy removal and replacement of a spindle on a spring axle.
    Type: Application
    Filed: February 5, 2020
    Publication date: June 4, 2020
    Inventors: Henry T. Dombroski, Anthony Cunningham