Patents by Inventor Cleve Michael Ruston

Cleve Michael Ruston 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).

  • Long throw shotcrete nozzle
    Patent number: 7854397
    Abstract: An improved apparatus for the gunning of a material is provided having a nozzle with an inner passage defined by an inner tubular member having an inlet end into which a wetted material is to be introduced and an outlet end from which the material is to be sprayed. An outer tubular member is disposed around the inner tubular member defining an outer passage between the inner and outer tubular members. A compressed gas is passed through the outer passage and impinged on the wetted material exiting the inner passage to better control the spray pattern of the wetted material. The inner tubular member extends out beyond the outlet end of the outer tubular member and the inner surface of the outer tubular member and the outer surface of the inner tubular member near the outlet end are chamfered to provide an optimal attitude for the impinging air.
    Type: Grant
    Filed: March 3, 2006
    Date of Patent: December 21, 2010
    Assignee: Specialty Minerals (Michigan) Inc.
    Inventors: Dominick M. Colavito, Ronald Schmidt, Richard C. Griffin, Bernard D. Gist, Cleve Michael Ruston