Patents by Inventor John Thomas Tolson

John Thomas Tolson 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).

  • Methods for repairing bone using a high pressure cement injection
    Patent number: 6402758
    Abstract: A method for treating osteoporosis or for repairing a join between bone and a prosthetic pin by injecting cement dispensed under high pressure from a cement gun into the bone cavity at one end of the medullary canal or into an interstice in the join formed between the prosthetic pin and cement in the cavity, anchoring the pin in the cavity, employs an adaptor at entry and exit ends. The adaptor has a shank portion with a self tapping external thread tapering from a connecting portion having an internal thread for attachment to a zerk, and radially outward wings, forming fingerpieces by which the shank portion can be rotated. An internal glue passageway extends completely through the adapter. A kit for injecting cement includes two adapters, a zerk, a high pressure lever action hydraulic gun for cement, two flexible connecting hoses, two plugs and a pressure release valve.
    Type: Grant
    Filed: April 16, 2001
    Date of Patent: June 11, 2002
    Inventor: John Thomas Tolson
  • High pressure cement injection device for bone repair
    Patent number: 6217581
    Abstract: An adaptor for injecting cement dispensed under high pressure from a cement gun into a bone cavity or into an interstice in a joint formed between a prosthetic pin and cement in the cavity, anchoring the pin in the cavity, to repair the joint has a shank portion with a self tapping external thread tapering from a connecting portion having an internal thread for attachment to a zerk, and radially outward wings, forming fingerpieces by which the shank portion can be rotated. An internal glue passageway extends completely through the adapter. A kit for injecting cement includes two adapters, a zerk, a high pressure lever action hydraulic gun for cement, two flexible connecting hoses, two plugs and a pressure release valve.
    Type: Grant
    Filed: July 2, 1999
    Date of Patent: April 17, 2001
    Inventor: John Thomas Tolson
  • High pressure glue injection device
    Patent number: 5928468
    Abstract: An adaptor for injecting glue under high pressure into a joint to includes a shank portion with a self tapping external thread tapering from a connecting portion having an internal connecting thread for attachment to a zerk and radially outward wings, forming fingerpieces by which the shank portion can be rotated. An internal glue passageway extends completely through the adapter. A restorer's kit includes a supply of adapters, zerks, a high pressure lever action hydraulic gun for glue, a flexible high pressure connecting hose and zerk coupling, a veneer needle and a supply of dowel form wooden plugs.
    Type: Grant
    Filed: November 25, 1997
    Date of Patent: July 27, 1999
    Inventor: John Thomas Tolson