Patents by Inventor Patrick Whitford

Patrick Whitford 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: 11353079
    Abstract: A spring assembly with two or more springs, one inside another. The spring assembly can have two springs wherein one spring is located inside another spring, and the outer spring can be a helical ribbon spring and the inner spring can be a canted coil spring to provide support to the outer helical ribbon spring. Support is provided where the helical ribbon spring may have some limitations that the inner spring is able to overcome. Limitations of the helical ribbon spring may be a limited force versus deflection curve which the additional spring support of the secondary spring may overcome.
    Type: Grant
    Filed: October 2, 2018
    Date of Patent: June 7, 2022
    Assignee: Bal Seal Engineering, LLC
    Inventors: Patrick Whitford, Farshid Dilmaghanian
  • Publication number: 20190107166
    Abstract: A spring assembly with two or more springs, one inside another. The spring assembly can have two springs wherein one spring is located inside another spring, and the outer spring can be a helical ribbon spring and the inner spring can be a canted coil spring to provide support to the outer helical ribbon spring. Support is provided where the helical ribbon spring may have some limitations that the inner spring is able to overcome. Limitations of the helical ribbon spring may be a limited force versus deflection curve which the additional spring support of the secondary spring may overcome.
    Type: Application
    Filed: October 2, 2018
    Publication date: April 11, 2019
    Inventors: Patrick Whitford, Farshid Dilmaghanian