Patents by Inventor David Scott Chrisman

David Scott Chrisman 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).

  • Tool and method for drilling, reaming, and cutting
    Patent number: 7114583
    Abstract: An orbital tool apparatus and method of using the apparatus for boring, drilling, reaming, and cutting having a tool housing, a tool collar located within the housing, the tool housing having the ability to couple to a conduit structure, fluid orbiting jets within the tool collar, and a tool funnel located below the tool collar and within a lower portion of the tool housing. The orbital tool creating a bore in a surface, when fluid flowing into the orbital tool via a conduit is directed out of the orbital tool towards the structure, a portion of the fluid flowing within the orbital tool being diverted through the fluid orbiting jets causing the diverted fluid to impinge against the tool funnel, causing the tool funnel to oscillate creating a sweeping flow towards the surface.
    Type: Grant
    Filed: February 4, 2005
    Date of Patent: October 3, 2006
    Inventor: David Scott Chrisman