Patents by Inventor Ronald Murl Sundelin

Ronald Murl Sundelin 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).

  • Corrosion resistant fastener
    Patent number: 10714239
    Abstract: An object of this invention is to prevent the collapse of structures such as boat lifts, where the collapse is caused by corrosion of metal fasteners inside conductive material such as moist wood in the presence of ground voltage differences, and where the corrosion is prevented by blocking current from flowing through the fasteners.
    Type: Grant
    Filed: September 24, 2018
    Date of Patent: July 14, 2020
    Inventor: Ronald Murl Sundelin
  • Corrosion resistant fastener
    Publication number: 20200098494
    Abstract: An object of this invention is to prevent the collapse of structures such as boat lifts, where the collapse is caused by corrosion of metal fasteners inside conductive material such as moist wood in the presence of external voltage differences, and where the corrosion is prevented by blocking current from flowing through the fasteners.
    Type: Application
    Filed: September 24, 2018
    Publication date: March 26, 2020
    Inventor: Ronald Murl Sundelin
  • Electronic price display unit
    Patent number: 4002886
    Abstract: This invention pertains to an electronic price display unit which can be remotely addressed and in which the price displayed can be remotely set. Such a device is particularly useful in a retail sales business in a system employing a central computer, point-of-sale terminals, and product code readers, because it ensures that the price displayed for an item is identical to the price actually charged for the item.
    Type: Grant
    Filed: June 20, 1975
    Date of Patent: January 11, 1977
    Inventor: Ronald Murl Sundelin