Patents by Inventor Ralph D. McGrath

Ralph D. McGrath 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: 20120034441
    Abstract: A wet fiber based composition that includes wet glass fibers, a water dispersible polymeric resin, and gypsum is provided. Components including melamine formaldehyde, a filler material, coupling agents, acetic acid, an accelerator, and/or a hardener may also be added to the composition. The gypsum may be a-gypsum, B-gypsum, or combinations thereof. The wet glass fibers are wet chopped glass fibers or a wet continuous roving. The combination of the wet glass fibers, the water dispersible polymeric resin, and the gypsum have a synergistic effect that creates a composite product that is water resistant, fire resistant, and has improved mechanical properties. In one exemplary embodiment, the wet fiber based composition is used to form a gypsum board that can be molded into various composite products. In other exemplary embodiments, thin multi-ply gypsum boards may be formed by alternately layering glass mats with layers of a gypsum/polymer slurry.
    Type: Application
    Filed: April 12, 2006
    Publication date: February 9, 2012
    Inventors: Leonard Adzima, Paul R. Krumlauf, William G. Hager, Jocelyn M. Seng, Ralph D. McGrath, Kevin S. Guigley, Yadollah Delaviz, Fatemeh Nassreen Olang, Yihsien H. Teng
  • Publication number: 20110190434
    Abstract: A composite material containing wet chopped strand fibers, gypsum, and a polymer material is provided. The wet fibers are filamentized within the polymer material. In exemplary embodiments, the wet chopped strand fibers are wet-used chopped strand glass fibers. The gypsum may be ?-gypsum, ?-gypsum, or combinations thereof. In at least one embodiment, the polymer is a urea-formaldehyde resin. The composite material may contain a facing layer on at least one exposed major surface of the composite material. A method of forming a composite material that includes mixing gypsum with a polymer material to form a substantially homogeneous matrix and adding a sufficient quantity of wet-used chopped strand fibers to form the composite material is also provided.
    Type: Application
    Filed: September 8, 2010
    Publication date: August 4, 2011
    Applicant: OCV Intellectual Capital, LLC
    Inventors: Leonard J. Adzima, Paul R. Krumlauf, Annabeth Law, Ralph D. McGrath, Scott W. Schweiger
  • Publication number: 20090209681
    Abstract: A composite material containing substantially homogeneous matrix of a gypsum material and a urea-formaldehyde material where wet-used chopped strand fibers are filamentized within the substantially homogeneous matrix.
    Type: Application
    Filed: February 18, 2008
    Publication date: August 20, 2009
    Inventors: Leonard J. Adzima, Paul R. Krumlauf, Annabeth Law, Scott W. Schweiger, Ralph D. McGrath
  • Patent number: 6755003
    Abstract: A construction beam includes a pair of lateral members and a resilient web extending therebetween, so as to present a cross-sectional profile corresponding to commonly used construction beam members. The resilience of the web helps to attenuate sound transmission through the beam from one lateral member to the other. Ends of the resilient web are fixed to respective ones of the lateral members on opposite sides of an imaginary reference plane passing orthogonally through both of the lateral members. In particular, in a wall frame, the lateral members are mounted at opposite ends thereof to end plates consisting of other construction beams according to the present invention. When used in a frame of a building structure, the lateral members of the end plates on the same side are attached to the surrounding structure, leaving the other side of the frame resiliently free floating.
    Type: Grant
    Filed: December 11, 1998
    Date of Patent: June 29, 2004
    Assignee: Owens Corning Fiberglas Technology, Inc.
    Inventors: Ralph D. McGrath, Frank C. O'Brien-Bernini
  • Patent number: 6615559
    Abstract: A resiliently flexible construction beam includes a pair of lateral flange portions and a web extending therebetween, preferably, but not necessarily, so as to present a cross-sectional profile corresponding to commonly used construction beam members (e.g., 2″×4″ or 2″×6″). The resilience of the beam helps to attenuate sound transmission through the beam from one lateral member to the other. In particular, in a wall frame, beams according to the present invention are mounted at opposite ends thereof to end plates. In one example, the end plates include slits into which the webs of the beams can be received. The resilient web according to the present invention is conveniently made from a unitary piece of material such as, for example, steel.
    Type: Grant
    Filed: April 4, 2001
    Date of Patent: September 9, 2003
    Assignee: Owens Corning Fiberglas Technology, Inc.
    Inventors: Ralph D. McGrath, John C. Chen
  • Patent number: 6399694
    Abstract: A type of (and method of making) fiberglass insulation is disclosed. Such insulation comprises: glass fibers; a polyacrylic glycerol (PAG) binder coating said glass fibers; and at least one of a coloring agent and a biocide adhered to said PAG binder. Such fiberglass insulation can take the form of a batt, board (a heated and compressed batt) or molding media (a different form of heated and compressed batt). The coloring agent and/or the biocide can be applied where the batt (or board or molding media, as the case may be) is manufactured or can be applied after the batt is installed in the field.
    Type: Grant
    Filed: June 30, 2000
    Date of Patent: June 4, 2002
    Assignee: Owens Corning Fiberglas Technology, Inc.
    Inventors: Ralph D. McGrath, Frank O'Brien Bernini, Jocelyn M. Seng, Neil R. Hettler
  • Patent number: 6389759
    Abstract: A quick and easy technology for attaching, and facilitating reconfiguration (detachment and reattachment) of, panels to walls that uses a clamp assembly including a base, a receptacle attached to the base and a clasp that fits into and attaches to the receptacle. The clasp has resilient arms and a head. Insertion of the resilient arms of the clasp into the receptacle draws the head towards the base, which produces a clamping action. Alternatively, the clamp assembly includes a channel having sidewalls attached to a base and at least one fastener having a blade-like shank and a head. The sidewalls converge so as to be more closely spaced together at the opening of the channel than at its base. The at least one fastener appears T-shaped in cross section, and is sized so that insertion of the blade-like shank into the channel widens the opening. Alternatively, the clamp assembly includes a first clamping piece and a second clamping piece configured to cooperatively engage each other.
    Type: Grant
    Filed: August 24, 2001
    Date of Patent: May 21, 2002
    Assignee: Owens Corning Fiberglas Technology, Inc.
    Inventors: Ralph D. McGrath, Frank C. O'Brien-Bernini
  • Publication number: 20020053180
    Abstract: A resiliently flexible construction beam includes a pair of lateral flange portions and a web extending therebetween, preferably, but not necessarily, so as to present a cross-sectional profile corresponding to commonly used construction beam members (e.g., 2″×4″ or 2″×6″). The resilience of the beam helps to attenuate sound transmission through the beam from one lateral member to the other. In particular, in a wall frame, beams according to the present invention are mounted at opposite ends thereof to end plates. In one example, the end plates include slits into which the webs of the beams can be received. The resilient web according to the present invention is conveniently made from a unitary piece of material such as, for example, steel.
    Type: Application
    Filed: April 4, 2001
    Publication date: May 9, 2002
    Inventors: Ralph D. McGrath, John C. Chen
  • Publication number: 20020000072
    Abstract: A quick and easy technology for attaching, and facilitating reconfiguration (detachment and reattachment) of, panels to walls that uses a clamp assembly including a base, a receptacle attached to the base and a clasp that fits into and attaches to the receptacle. The clasp has resilient arms and a head. Insertion of the resilient arms of the clasp into the receptacle draws the head towards the base, which produces a clamping action. Alternatively, the clamp assembly includes a channel having sidewalls attached to a base and at least one fastener having a blade-like shank and a head. The sidewalls converge so as to be more closely spaced together at the opening of the channel than at its base. The at least one fastener appears. T-shaped in cross section, and is sized so that insertion of the blade-like shank into the channel widens the opening. Alternatively, the clamp assembly includes a first clamping piece and a second clamping piece configured to cooperatively engage each other.
    Type: Application
    Filed: August 24, 2001
    Publication date: January 3, 2002
    Inventors: Ralph D. McGrath, Frank C. O'Brien-Bernini
  • Patent number: 6283247
    Abstract: Fabric retainers and methods for installing the fabric retainers within an acoustically treated room. The fabric retainers have a fabric retaining portion, and a chase or a raceway for running wires within the interior of the retainers. The chase has an open side which allows fasteners to be installed through the base of the retainer, and which allows for the insertion of wires into the chase. Retainers also have a retainer groove in which an acoustical fabric is secured, and a fabric retaining pocket to store the inserted fabric. Alternative retainer embodiments have two retainer grooves. A removeable cover is provided to secure the wiring within the chase, and to conceal the wiring within the chase. Also disclosed are methods for combining various retainer embodiments within a structure.
    Type: Grant
    Filed: October 28, 1999
    Date of Patent: September 4, 2001
    Assignee: Owens Corning Fiberglas Technology, Inc.
    Inventors: Ralph D. McGrath, Frank C. O'Brien-Bernini
  • Patent number: 6244378
    Abstract: An acoustically significant composite panel having a general sound-absorbing face (or a general sound-diffusing face) and a tuned sound-absorbing face. Such a panel includes a sandwich or composite of a first layer of molding media, a honeycomb of cells and a second layer of molding media. The first layer has at least one or more apertures in it that convert the corresponding cells into Helmholtz resonators. These Helmholtz resonators can be tuned to the same or different frequencies. The second layer is generally sound-absorbing. A general diffuser structure can be attached to the second layer. These panels can be attached to the walls and/or ceilings of a room to control its sonic quality. Also, these panels can be suspended vertically below a ceiling to control noise.
    Type: Grant
    Filed: December 11, 1998
    Date of Patent: June 12, 2001
    Assignee: Owens Corning Fiberglas Technology, Inc.
    Inventor: Ralph D. McGrath
  • Patent number: 6199328
    Abstract: A quick and easy technology for attaching, and facilitating reconfiguration (detachment and reattachment) of, panels to walls that uses a clamp assembly including a base, a receptacle attached to the base and a clasp that fits into and attaches to the receptacle. The clasp has resilient arms and a head. Insertion of the resilient arms of the clasp into the receptacle draws the head towards the base, which produces a clamping action. Alternatively, the clamp assembly includes a channel having sidewalls attached to a base and at least one fastener having a blade-like shank and a head. The sidewalls converge so as to be more closely spaced together at the opening of the channel than at its base. The at least one fastener appears T-shaped in cross section, and is sized so that insertion of the blade-like shank into the channel widens the opening. Alternatively, the clamp assembly includes a first clamping piece and a second clamping piece configured to cooperatively engage each other.
    Type: Grant
    Filed: December 11, 1998
    Date of Patent: March 13, 2001
    Assignee: Owens Corning Fiberglas Technology, Inc.
    Inventors: Ralph D. McGrath, Frank C. O'Brien-Bernini
  • Patent number: 6098743
    Abstract: Acoustical housing for supporting and enhancing the performance of speakers. A preferred apparatus includes a support well that is fabricated from acoustically absorptive material and is adapted to be mounted between wall or ceiling studs. A cover or a portion of wall board may be installed to completely enclose the support well within the wall to define a cavity into which a portion of a speaker body may extend. The speaker or speakers are affixed to the cover or wallboard in a conventional manner such that the speaker body extends into the cavity and the sound emitting surface of the speaker is exposed. Methods for installing the acoustical housings into existing wall or ceiling structures without compromising the acoustical and structural integrities of such structures are also disclosed.
    Type: Grant
    Filed: September 4, 1998
    Date of Patent: August 8, 2000
    Assignee: Owens Corning Fiberglas Technology, Inc.
    Inventor: Ralph D. McGrath
  • Patent number: 6015025
    Abstract: Acoustical diffuser apparatus for supporting and enhancing the performance of speakers. A preferred apparatus includes a diffuser panel that has an outwardly facing non-planar diffuser surface and an opening corresponding to each speaker for receiving at least a portion of the corresponding speaker therein. The diffuser panel does not cover the sound emitting surface of at least one speaker. The diffuser panel may have acoustically transparent material affixed thereto. Methods for installing the diffuser panels into existing wall or ceiling structures without compromising the structural integrity of such structures are also disclosed.
    Type: Grant
    Filed: September 4, 1998
    Date of Patent: January 18, 2000
    Assignee: Owens Corning Fiberglas Technology, Inc.
    Inventors: Ralph D. McGrath, Harry A. Alter
  • Patent number: 6015026
    Abstract: Apparatus for supporting an acoustical diffuser panel within a structure. A preferred apparatus includes a rigid support member fabricated from an acoustically absorptive material. The support member has a bottom and upstanding side walls that define a well that is sized to receive a diffuser panel therein. The diffuser panel may comprise a plurality of column members that are integrally formed with a planar bottom surface and extend therefrom. At least one column member is longer than at least one other column member. Another diffuser panel that can be successfully used has a series of elongated columns that extend for the width or length of the panel. At least one column member extends a distance above the bottom of the support member that differs from the distance that another column extends above the support member when the panel is received therein. A method for installing at least one acoustical diffuser assembly into a wall structure and an acoustical wall structure are also disclosed.
    Type: Grant
    Filed: January 6, 1998
    Date of Patent: January 18, 2000
    Assignee: Owens-Corning Fiberglas Technology, Inc.
    Inventor: Ralph D. McGrath
  • Patent number: 5923002
    Abstract: An acoustical diffuser is disclosed for diffusing sound. A preferred diffuser includes a first fibrous material, a first separator layer, a diffuser material a second separator layer, a second fibrous material and an acoustically transparent material. The subject invention also includes a preferred method of molding such diffuser. The subject invention further includes a panel that has an acoustically reflective side and an acoustically transparent side over a frequency range that can be attached to the walls of a room to enhance the acoustical characteristics of the room. A preferred method of installing such panels includes installing fabric retainer members to the walls between the panels and attaching an acoustically transparent material to the fabric retainer members such that the panels and fabric retainers are covered by the acoustically transparent material.
    Type: Grant
    Filed: November 12, 1997
    Date of Patent: July 13, 1999
    Assignee: Owens Corning Fiberglas Technology, Inc.
    Inventors: Ralph D. McGrath, Harry A. Alter, Jeffrey A. Tilton, Robert O. Kaufman
  • Patent number: 5736475
    Abstract: A method for manufacturing a mineral fiber product includes establishing a stream of mineral fibers, directing polymeric fibers toward the stream of mineral fibers to cause intermingling of the polymeric material, and applying heat to the polymer fibers so that some of them become softened to the extent that they lose their fibrous form and become attached to the mineral fibers as non-fibrous particles, whereas some of the polymer fibers retain their fibrous form.
    Type: Grant
    Filed: April 9, 1997
    Date of Patent: April 7, 1998
    Assignee: Owens Corning Fiberglas Technology, Inc.
    Inventors: Shiv K. Bakhshi, Steven H. Williams, James W. Scott, Randall M. Haines, Ralph D. McGrath
  • Patent number: 5632543
    Abstract: An insulated appliance cabinet is provided comprising a mounting structure and a plurality of vacuum insulation panels retained by the mounting structure and positioned relative to one another so as to define a substantially completely enclosed insulation shell.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: May 27, 1997
    Assignee: Owens-Corning Fiberglas Technology Inc.
    Inventors: Ralph D. McGrath, Bret E. Kline, Dwight S. Musgave
  • Patent number: 5605047
    Abstract: An enclosed structure is provided for use with a refrigerator having a door assembly. The enclosed structure preferably contains superinsulation materials and a plurality of matching drawers. The enclosed structure preferably includes corner joints which minimize thermal energy transfer between adjacent superinsulation panels. The refrigerator may include a cooling system having a thermoelectric device for maintaining the temperature within the refrigerator at selected values. If desired, a fluid cooling system and an active gasket may also be provided between the door assembly and the enclosed structure. The fluid cooling system preferably includes a second thermoelectric device to maintain the temperature of fluid flowing through the active gasket at a selected value. The drawers associated with the refrigerator may be used for gathering, processing, shipping and storing food or other perishable items.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: February 25, 1997
    Assignees: Owens-Corning Fiberglas Corp., Oceaneering Space Systems
    Inventors: Brian V. Park, Ralph D. McGrath
  • Patent number: 5522216
    Abstract: A refrigerator is provided which combines the benefits of superinsulation materials with thermoelectric devices and phase change materials to provide an environmentally benign system that is energy efficient and can maintain relatively uniform temperatures for extended periods of time with relatively low electrical power requirements. The refrigerator includes a thermoelectric assembly having a thermoelectric device with a hot sink and a cold sink. The superinsulation materials include a plurality of vacuum panels. The refrigerator is formed from an enclosed structure having a door. The vacuum panels may be contained within the walls of the enclosed structure and the door. By mounting the thermoelectric assembly on the door, the manufacturer of the enclosed structure is simplified and the overall R rating of the refrigerator increased. Also an electrical motor and propellers may be mounted on the door to assist in the circulation of air to improve the efficiency of the cold sink and the hot sink.
    Type: Grant
    Filed: January 12, 1994
    Date of Patent: June 4, 1996
    Assignees: Marlow Industries, Inc., Owens-Corning Fiberglas Corporation, Oceaneering International, Inc.
    Inventors: Brian V. Park, Malcolm C. Smith, Jr., Ralph D. McGrath, Michael D. Gilley, Lance Criscuolo, John L. Nelson