Patents by Inventor James L. Hager

James L. Hager 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).

  • Building truss transport trailer device
    Patent number: 7802817
    Abstract: A building truss transport trailer device adapted for transporting upright or inverted building trusses. The base of the transport trailer device comprises a horizontal bed frame section, having top and bottom sides and a longitudinal axis. The bed frame section is supported on a set of wheels attached to the bottom side thereof. The bed frame section includes a tongue and hitch member adapted for attachment to a towing vehicle. A vertical support frame section extends from the top side of the bed frame section and is positioned along the longitudinal axis thereof. A fastening system is attached to the bed frame and adapted for fastening a plurality of upright or inverted building trusses, positioned on the bed frame section and against the vertical support frame section, to the trailer device for transport thereof.
    Type: Grant
    Filed: March 19, 2007
    Date of Patent: September 28, 2010
    Assignee: Northwest Enterprises, Inc.
    Inventors: James L. Hager, David B. Sundly
  • Liquid solvent transportation process
    Patent number: 6085808
    Abstract: A process for safely and efficiently transporting flammable or combustible solvents is disclosed. A covered trailer contains an empty container for contaminated solvent and a container full of non-contaminated solvent. The trailer moves from point to point removing contaminated solvent from a users drum container and filling the users drum container with fresh solvent. When either the contaminated solvent container is full or the non-contaminated solvent container is empty, the trailer moves to the distributors recovery/disposal facility to discharge the contaminated solvent and replenish the non-contaminated solvent tank for further servicing of users drum containers.
    Type: Grant
    Filed: July 23, 1997
    Date of Patent: July 11, 2000
    Assignee: WRR Environmental Services Co., Inc.
    Inventors: James L. Hager, Brian K. Schneider
  • Separation of inorganic salts from dimethyl sulfoxide
    Patent number: 5868908
    Abstract: A process for separating inorganic salts from a solution of dimethyl sulfoxide, water and salts including feeding the solution plus a hydrocarbon based oil to a vacuum thin film evaporator. The DMSO and water are vaporized and condensed outside the evaporator for reuse or further purification. The salt and oil exit the evaporator as a liquid phase slurry. Water is added to the slurry to dissolve the salt and produce an aqueous phase and an oil phase which are separated. The oil phase is recycled to the thin film evaporator portion of the process.
    Type: Grant
    Filed: September 9, 1997
    Date of Patent: February 9, 1999
    Assignee: WRR Environmental Services Co., Inc.
    Inventor: James L. Hager