Patents by Inventor Gerald Mclain Jackson

Gerald Mclain Jackson 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: 7204657
    Abstract: A lightweight one man screed apparatus to automatically strike off and level uncured concrete flatwork, includes a tri-pod framework beneath which a cutting/leveling member operates. The apparatus is controlled by two grade setting devices, adjustably mounted to the screed tool, which may be adjusted relative to a laser plane generating system. Physical control of the screed member may be provided by at least one screed tool pivotal arm assembly moved for and aft by a carriage operated under the tri-pod framework within a fore and aft footprint. The screed tool is adjusted to grade by being raised or lowered by at least one linear actuators responding to an electronic controller. When moving the framework and screed assembly into freshly poured concrete, an operator is assisted by retractable wheels. The wheels are rotationally stowable or used deployed as part of the tripod/transport system facilitating mobility.
    Type: Grant
    Filed: March 21, 2005
    Date of Patent: April 17, 2007
    Inventor: Gerald Mclain Jackson