Patents by Inventor Graeme Davis

Graeme Davis 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: 8453993
    Abstract: A post removal device (10), including a support (11), and a lever (12) which is rotatable about a fulcrum (13). The lever (12) extends on either side of the fulcrum (13) to define a first portion (14) and a second portion (15), whereby downward movement of the first portion (14) results in upward movement of the second portion (15). The second portion (15) is connected to a gripping arrangement (19) which includes a pair of post grippers (23), which are movable during rotation of the lever (12), from an open condition to a gripping condition. The extent of rotational movement of the lever (12) is sufficient for the grippers (23) to move from the open condition to the gripping condition and for the gripping arrangement (19) to be lifted with the grippers (23) in the gripping condition for lifting a post.
    Type: Grant
    Filed: October 5, 2007
    Date of Patent: June 4, 2013
    Inventor: Graeme Davis
  • Publication number: 20100213425
    Abstract: A post removal device (10), including a support (11), and a lever (12) which is rotatable about a fulcrum (13). The lever (12) extends on either side of the fulcrum (13) to define a first portion (14) and a second portion (15), whereby downward movement of the first portion (14) results in upward movement of the second portion (15). The second portion (15) is connected to a gripping arrangement (19) which includes a pair of post grippers (23), which are movable during rotation of the lever (12), from an open condition to a gripping condition. The extent of rotational movement of the lever (12) is sufficient for the grippers (23) to move from the open condition to the gripping condition and for the gripping arrangement (19) to be lifted with the grippers (23) in the gripping condition for lifting a post.
    Type: Application
    Filed: October 5, 2007
    Publication date: August 26, 2010
    Inventor: Graeme Davis