Patents by Inventor Fred B. Arehart

Fred B. Arehart 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).

  • Publication number: 20030121836
    Abstract: A new and unique design enhancement and use of directional and re-directional ribs on a solids control filtering screen, such as those used in drilling wells for hydrocarbons and other substances, in conjunction with a coordinated system of hanging such screens and directing and redirecting the flow of trapped solids over the surface of such screens, is disclosed for use with a shaker. The invention counteracts the natural tendency of trapped solids to migrate to and congregate in the lowest areas of a suspended screen and facilitates a dryer fluids discharge, as well as more effectively utilizing the available screening surface area, and therefore the invention reduces the incidence of screen wear and tearing and increases the flow rate conductants through the screen.
    Type: Application
    Filed: October 28, 2002
    Publication date: July 3, 2003
    Inventors: Glenn T. Lilie, Fred B. Arehart
  • Patent number: 6484885
    Abstract: A new and unique design use of directional and re-directional raised ribs on a solids control filtering screen, such as those used in drilling wells for hydrocarbons and other substances, in conjunction with a coordinated system of hanging such screens and directing and redirecting the flow of trapped solids over the surface of such screens, is disclosed for use with a vibratory shaker. The invention counteracts the natural tendency of trapped solids to migrate to and congregate in the lowest areas of a suspended screen and facilitates a dryer fluids discharge, as well as more effectively utilizing the available screening surface area, and therefore the invention reduces the incidence of screen wear and tearing and increases the flow rate conductants and drying capabilities through the screen.
    Type: Grant
    Filed: October 27, 1999
    Date of Patent: November 26, 2002
    Assignee: CPI Sales & Mfg., Inc.
    Inventors: Glenn T. Lilie, Fred B. Arehart
  • Patent number: 6314690
    Abstract: A high strength window screen frame that includes an extruded metal frame that fits within a window opening in a building. The frame is made up of a plurality of window frame units, each defining an opening and covered with mesh. A standoff leg portion of the window frame units provides a standoff separation of the mesh from a glass pane so that when objects strike the mesh and deflect the mesh, the glass pane is not impacted.
    Type: Grant
    Filed: November 19, 1999
    Date of Patent: November 13, 2001
    Assignee: CPI Group, Inc.
    Inventors: Glenn T. Lilie, Fred B. Arehart
  • Patent number: 6230455
    Abstract: A high strength window screen frame that includes an extruded metal frame that surrounds a window opening in a building. The frame defines an opening. A screen plate portion of the extruded metal frame is provided on the frame proximate the opening. A flange portion of the extruded metal frame is provided on an outside of the frame away from the opening. A beveled surface on the flanged portion is provided to improve the appearance of the metal frame. A screen plate stiffener is removably affixed to a back side of the extruded metal frame to secure a screen to the frame. Heavy duty mesh screen is preferably used with a high strength window screen frame of the invention. The flanged portion of the window screen frame is bolted to an exterior wall surrounding a window opening of a structure.
    Type: Grant
    Filed: November 2, 1999
    Date of Patent: May 15, 2001
    Assignee: CPI Group, Inc.
    Inventors: Fred B. Arehart, Glenn T. Lilie
  • Patent number: D469546
    Type: Grant
    Filed: November 2, 1999
    Date of Patent: January 28, 2003
    Assignee: CPI Group, Inc.
    Inventors: Glenn T. Lilie, Fred B. Arehart
  • Patent number: D432668
    Type: Grant
    Filed: November 2, 1999
    Date of Patent: October 24, 2000
    Assignee: CPI Group, Inc.
    Inventors: Glenn T. Lilie, Fred B. Arehart