Patents Assigned to JMJ Management, LLC
  • Method and apparatus employing modular engageable components for formation of maintenance hole platforms
    Patent number: 8894902
    Abstract: A method for forming a maintenance hole base for the bottom surface of a maintenance shaft using a configurable modular mold and thermoforming or rotational molding. The modular mold is formed of individual members of groups of central core components engageable to surrounding periphery components to yield a mold which will form the appropriate engagement and communication pathways for the base when installed. Polymeric material is employed with the mold to yield a finished component configured for use in the base of the maintenance shaft.
    Type: Grant
    Filed: January 17, 2012
    Date of Patent: November 25, 2014
    Assignee: JMJ Management, LLC
    Inventors: Joseph McRoskey, John W. McRoskey, Gerry Taylor