Patents by Inventor Luther I. Dickens

Luther I. Dickens 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: 8827670
    Abstract: A dual platen molding machine for constructing a plurality of pre-insulated structural panels is disclosed that includes multiple safety features. The molding machine produces one or more panels that may include one or more c-channels or profiles embedded in expandable polystyrene (EPS) foam to provide structural integrity to the panels, and resulting wall. A chase may be formed horizontally in the panels to provide a wiring conduit through the panel. The molding machine is electrically operated to control the movement of a movable molding portion when closed upon a stationary molding portion. Steam may be controlled to fuse insulating material such as expandable polystyrene (EPS) in cavities formed between the movable mold and the stationary mold. No hydraulics is required to operate the dual platen molding machine, thus improving operating and maintenance costs. Moreover, steam hoses may be avoided, thereby improving overall safety.
    Type: Grant
    Filed: July 12, 2011
    Date of Patent: September 9, 2014
    Assignee: Radva Corporation
    Inventor: Luther I. Dickens
  • Patent number: 8555585
    Abstract: An apparatus and method for constructing pre-insulated structural panels is disclosed that has a tongue and groove assembly arrangement. Each panel may include one or more c-channels or profiles embedded in expandable polystyrene (EPS) foam to provide structural integrity to the panels, and resulting wall. The panels may be covered with siding, stucco, or similar materials. A chase may be formed horizontally in the panels to provide a wiring conduit through the panel. The panel may also provide when assembled, a vertical chase formed between the mated panels along the length of the panel for wiring. Acoustical properties may be formed in the surface of the EPS portions to provided added acoustical damping measures.
    Type: Grant
    Filed: November 2, 2012
    Date of Patent: October 15, 2013
    Assignee: RADVA Corporation
    Inventor: Luther I. Dickens
  • Patent number: 8316612
    Abstract: An apparatus and method for constructing pre-insulated structural panels is disclosed that has a tongue and groove assembly arrangement. Each panel may include one or more c-channels or profiles embedded in expandable polystyrene (EPS) foam to provide structural integrity to the panels, and resulting wall. The panels may be covered with siding, stucco, or similar materials. A chase may be formed horizontally in the panels to provide a wiring conduit through the panel. The panel may also provide when assembled, a vertical chase formed between the mated panels along the length of the panel for wiring. Acoustical properties may be formed in the surface of the EPS portions to provided added acoustical damping measures.
    Type: Grant
    Filed: November 6, 2009
    Date of Patent: November 27, 2012
    Assignee: Radva Corporation
    Inventor: Luther I. Dickens
  • Publication number: 20110268924
    Abstract: A dual platen molding machine for constructing a plurality of pre-insulated structural panels is disclosed that includes multiple safety features. The molding machine produces one or more panels that may include one or more c-channels or profiles embedded in expandable polystyrene (EPS) foam to provide structural integrity to the panels, and resulting wall. A chase may be formed horizontally in the panels to provide a wiring conduit through the panel. The molding machine is electrically operated to control the movement of a movable molding portion when closed upon a stationary molding portion. Steam may be controlled to fuse insulating material such as expandable polystyrene (EPS) in cavities formed between the movable mold and the stationary mold. No hydraulics is required to operate the dual platen molding machine, thus improving operating and maintenance costs. Moreover, steam hoses may be avoided, thereby improving overall safety.
    Type: Application
    Filed: July 12, 2011
    Publication date: November 3, 2011
    Applicant: Radva Corporation
    Inventor: Luther I. DICKENS
  • Publication number: 20100154331
    Abstract: An apparatus and method for constructing pre-insulated structural panels is disclosed that has a tongue and groove assembly arrangement. Each panel may include one or more c-channels or profiles embedded in expandable polystyrene (EPS) foam to provide structural integrity to the panels, and resulting wall. The panels may be covered with siding, stucco, or similar materials. A chase may be formed horizontally in the panels to provide a wiring conduit through the panel. The panel may also provide when assembled, a vertical chase formed between the mated panels along the length of the panel for wiring. Acoustical properties may be formed in the surface of the EPS portions to provided added acoustical damping measures.
    Type: Application
    Filed: November 6, 2009
    Publication date: June 24, 2010
    Inventor: Luther I. DICKENS
  • Patent number: 4953334
    Abstract: A low cost insulating panel for covering walls of existing structures has an expanded cellular core having complementary stepped side edges of differing width to define depressions in a combination of two panels. The panel has thin flat reinforcing strips along side edges extending upon a front face of the panel and therefrom into the stepped configurations at most to come in contact in the depression formed by two mating panels without extending to a back face of any panel.
    Type: Grant
    Filed: October 29, 1987
    Date of Patent: September 4, 1990
    Assignee: RADVA Corporation
    Inventor: Luther I. Dickens
  • Patent number: 4653718
    Abstract: An improved molding structure for producing a building panel or the like of expanded cellular core material having reinforcing strips flush with surfaces thereof and including one or more indentations or depressions having reinforcing elements extending therein and anchored within the core.
    Type: Grant
    Filed: December 19, 1984
    Date of Patent: March 31, 1987
    Assignee: Radva Corporation
    Inventor: Luther I. Dickens
  • Patent number: 4284447
    Abstract: A method of forming a panel structure useful in building construction and the like includes the steps of heating a heat expandable plastic in a separable mold having a cavity with the configuration of the resultant panel to form a panel core and adhering thin reinforcing strips to the front and back surfaces of the core. Control over the dimensions and configuration of the panel is obtained by adhering the strips to the core in the mold while applying heat thereto whereby core shrinkage is minimized. The strips may be adhered to the core during initial heating of the plastic material to form the core or may be adhered to the core in the mold subsequent to core formation.
    Type: Grant
    Filed: May 18, 1979
    Date of Patent: August 18, 1981
    Inventors: Luther I. Dickens, William C. Nanny
  • Patent number: 4241555
    Abstract: A building panel has an expanded plastic core with thin reinforcing strips bonded to front and back surfaces of the core, at least along the edges thereof, and may have a wire grid attached in offset relation to one surface thereof for receiving a material such as concrete. The panel is manufactured by a process of expanding a plastic material in a mold by the application of heat to form a core, removing the core from the mold, placing thin reinforcing strips on front and back surfaces of the core with an adhesive system between strips and core, returning the core to the mold and heating the interior of the mold to bond the strips to the core and achieve dimensional stability during molding.
    Type: Grant
    Filed: May 30, 1978
    Date of Patent: December 30, 1980
    Assignee: Radva Plastics Corporation
    Inventors: Luther I. Dickens, William C. Nanny
  • Patent number: 4240557
    Abstract: A molded polystyrene foam wedge-shaped merchandise support with a plurality of reinforcing ribs with at least one transfer hole in each rib. The top, edges and sides of the support may be covered by a protective covering. The protective covering may be a thermoplastic sheet, such as an acrylonitrile-butadiene-styrene polymer, or a laminated fiberboard.
    Type: Grant
    Filed: December 28, 1978
    Date of Patent: December 23, 1980
    Assignee: The Mead Corporation
    Inventor: Luther I. Dickens
  • Patent number: 4144296
    Abstract: A process for molding in situ a polystyrene foam structure with a relatively rigid thermoplastic sheet covering a portion of the surface of the polystyrene foam. The thermoplastic sheet is cut and folded into proper shape and a heat-activated adhesive applied to the inside surface. The folded sheet is inserted into the female cavity of a mold which is then closed. Expandable polystyrene is injected into the interior of the folded sheet and heated to expand the polystyrene against the sheet and the adhesive is heat-activated to bond the sheet and polystyrene.
    Type: Grant
    Filed: June 23, 1976
    Date of Patent: March 13, 1979
    Assignee: The Mead Corporation
    Inventor: Luther I. Dickens
  • Patent number: 4094110
    Abstract: A system of constructing buildings by connecting together expanded plastic panels with reinforcing strips bonded thereto and wire mesh attached to the exterior surfaces thereof upon a foundation with at least a portion of the panels having a curved configuration to maximize structural strength of the combination of panels. Concrete is applied to the exterior of the combined panels with the wire mesh then forming reinforcing in the resultant concrete wall upon the panels and the interior is coated with plaster to form a low cost structure with very good insulating properties.
    Type: Grant
    Filed: March 24, 1976
    Date of Patent: June 13, 1978
    Assignee: Radva Plastics Corporation
    Inventors: Luther I. Dickens, William C. Nanny