Patents by Inventor David Barnsdale

David Barnsdale 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).

  • Maintenance device for fasteners
    Patent number: 9066582
    Abstract: There is provided in a preferred embodiment of the present invention a maintenance device having a central body and a lubricant container attached to the upper end of the central body. At a lower end of the central body, at least one dynamic body is provided and biased by a spring to an extended position relative to the central body. The dynamic member comprises a pair of cleaning arms that are outwardly biased. As a compression force is applied to the dynamic body, the biasing spring is compressed and the dynamic body is moved toward a retracted position relative to the central body. As the dynamic body retracts, the cleaning arms pivot inward and engage the fastener for cleaning.
    Type: Grant
    Filed: August 27, 2012
    Date of Patent: June 30, 2015
    Inventors: Christopher J. Cunningham, David Barnsdale
  • MAINTENANCE DEVICE FOR FASTENERS
    Publication number: 20130209156
    Abstract: There is provided in a preferred embodiment of the present invention a maintenance device having a central body and a lubricant container attached to the upper end of the central body. At a lower end of the central body, at least one dynamic body is provided and biased by a spring to an extended position relative to the central body. The dynamic member comprises a pair of cleaning arms that are outwardly biased. As a compression force is applied to the dynamic body, the biasing spring is compressed and the dynamic body is moved toward a retracted position relative to the central body. As the dynamic body retracts, the cleaning arms pivot inward and engage the fastener for cleaning.
    Type: Application
    Filed: August 27, 2012
    Publication date: August 15, 2013
    Inventors: Christopher J. Cunningham, David Barnsdale