Patents by Inventor Roger Anthony Purdon

Roger Anthony Purdon 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: 9021643
    Abstract: A curb ramp can be positioned next to a curb or a raised walkway to allow a cart to be wheeled up or down the curb ramp to or from the curb. The curb ramp allows people and equipment to move safely up or down a curb or walkway. The curb ramp can have a length at least as long as the wheel base of a cart used on the curb ramp to prevent tail drag of the cart. The curb ramp can include side rails to prevent sideways fall off therefrom. The curb ramp includes a curb-stop piece that is disposed against the curb during use and a plurality of cross braces to support and carry the load. A strong, effective and safe curb ramp can accommodate all wheeled devices that people can push or pull thereover, while being light enough to be easily transported and moved as needed.
    Type: Grant
    Filed: November 29, 2012
    Date of Patent: May 5, 2015
    Inventor: Roger Anthony Purdon
  • Publication number: 20130133143
    Abstract: A curb ramp can be positioned next to a curb or a raised walkway to allow a cart to be wheeled up or down the curb ramp to or from the curb. The curb ramp allows people and equipment to move safely up or down a curb or walkway. The curb ramp can have a length at least as long as the wheel base of a cart used on the curb ramp to prevent tail drag of the cart. The curb ramp can include side rails to prevent sideways fall off therefrom. The curb ramp includes a curb-stop piece that is disposed against the curb during use and a plurality of cross braces to support and carry the load. A strong, effective and safe curb ramp can accommodate all wheeled devices that people can push or pull thereover, while being light enough to be easily transported and moved as needed.
    Type: Application
    Filed: November 29, 2012
    Publication date: May 30, 2013
    Inventor: Roger Anthony Purdon