Patents by Inventor Keith D. Weiss

Keith D. Weiss 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: 20080187725
    Abstract: A plastic glazing for use in an automobile. The glazing includes a polycarbonate substrate, a conductive layer located adjacent to the polycarbonate substrate, and a glazing layer located adjacent to the conductive layer. The conductive layer comprises carbon nanotubes, and the glazing layer is made of a material that is different from polycarbonate. The glazing layer includes at least one of an abrasion resistant layer and a weathering layer.
    Type: Application
    Filed: October 10, 2007
    Publication date: August 7, 2008
    Applicant: Exatec, LLC
    Inventors: SUNITHA GRANDHEE, CHENGTAO LI, KEITH D. WEISS, ERIC F.J.M. VAN DER MEULEN
  • Publication number: 20080157416
    Abstract: A method of manufacturing low-haze plastic window glazing is claimed where a portion of a panel mold interior is polished with an abrasive material no finer than 600 grit size. Plastic resin is then introduced into the mold under heat and pressure to form a panel. Weatherable coating is then applied to portions of the panel via a wet coating process. An abrasion resistant coating is then applied to portions of the panel via a plasma application technique. This method produces a window glazing with at least one portion having no more than 1% haze.
    Type: Application
    Filed: May 16, 2007
    Publication date: July 3, 2008
    Inventors: Barry Hoult, Harold Mukamal, Chengtao Li, Keith D. Weiss
  • Publication number: 20080160298
    Abstract: A multifunctional glazing panel for automotive window assembly. The glazing panel includes a plastic film having a functional layer, a base layer of a polymer material, a tie layer between the plastic film and the base layer. An abrasion resistant layer, for protecting the plastic film and base layer from damage caused by abrasion, is provided over the plastic film.
    Type: Application
    Filed: December 26, 2007
    Publication date: July 3, 2008
    Inventors: Chengtao Li, Keith D. Weiss
  • Publication number: 20080085415
    Abstract: The present invention provides an automotive glazing assembly constructed by a process of film insert molding (FIM). The glazing assembly comprises a transparent plastic substrate having an ink composition that has a blend of polyester and polycarbonate resins such that the ink exhibits uniform opacity and stability during all thermoforming and injection molding operations, and is capable of forming complex 3-D geometries. The glazing assembly comprising the ink composition is further free from surface defects such as pinholes and micro-cracks.
    Type: Application
    Filed: October 4, 2006
    Publication date: April 10, 2008
    Inventors: Chengtao Li, Sunitha Grandhee, Keith D. Weiss
  • Publication number: 20080028697
    Abstract: A window defrost assembly having a substrate, a polycarbonate film adjacent to the substrate, a heater grid located between the substrate and the polycarbonate film, and a light control layer located between the polycarbonate film and the heater grid. The heater grid includes first and second bus bars and a plurality of grid lines extending between and connecting to the first and second bus bars.
    Type: Application
    Filed: August 4, 2006
    Publication date: February 7, 2008
    Inventors: Chengtao Li, Wilfried Hedderich, Keith D. Weiss, Rebecca Northey
  • Publication number: 20070278815
    Abstract: A window assembly having photochromatic properties is described. The window assembly includes a substrate being adjacent to a coating. A photochromatic film is located between the substrate and the coating, whereby the photochromatic film darkens when the window assembly is exposed to ultraviolet light.
    Type: Application
    Filed: June 2, 2006
    Publication date: December 6, 2007
    Inventors: Wilfried Hedderich, Christophe Lefaux, Keith D. Weiss
  • Patent number: 7297902
    Abstract: The present invention provides a window assembly having a transparent panel and a conductive heater grid formed integrally with the transparent panel. The conductive heater grid has a first group of grid lines and a second group of grid lines, with opposing ends of each group being connected to first and second busbars. Grid lines of the second group are spaced between adjacent grid lines of the first group, with the height of the grid lines themselves in the second group being less than the height of the grid lines in the first group.
    Type: Grant
    Filed: April 21, 2006
    Date of Patent: November 20, 2007
    Assignee: Exatec, LLC
    Inventor: Keith D. Weiss
  • Patent number: 7267055
    Abstract: The present invention involves an ink for transferring a printed image from a membrane to a substrate. The ink comprises a hydrocarbon solvent, a synthetic resin, and a thixotrope for forming a thixotropic network in the ink. The hydrocarbon solvent has a predetermined evaporation rate and the thixotropic network of the ink has a thixotropic network magnitude of between about 3×104 and 6×105 dynes/cm2-sec?1 and a thixotropic network strength of at least about 35.0 gm-cm.
    Type: Grant
    Filed: December 11, 2003
    Date of Patent: September 11, 2007
    Assignee: Exatec, L.L.C.
    Inventors: Keith D. Weiss, Jason Beaudoin
  • Patent number: 7129444
    Abstract: The present invention provides a window assembly having a transparent panel and a conductive heater grid formed integrally with the transparent panel. The conductive heater grid has a first group of grid lines and a second group of grid lines, with opposing ends of each group being connected to first and second busbars. Grid lines of the second group are spaced between adjacent grid lines of the first group, with the width of the grid lines themselves in the second group being less than the width of the grid lines in the first group.
    Type: Grant
    Filed: May 17, 2004
    Date of Patent: October 31, 2006
    Assignee: Exatec LLC
    Inventor: Keith D. Weiss
  • Patent number: 6964226
    Abstract: The present invention involves a method of transferring a membrane image to an article. The method comprises providing a printed decoration to be applied onto a low surface energy membrane. The low surface energy membrane has a hardness level of greater than 70 durometer Shore A and a surface energy of up to 25 mJ/m2. The method further includes applying a predetermined pressure with a pressure device to force the printed decoration through a screen onto the low surface energy membrane. The pressure device has a hardness of up to 70 durometer Shore A. The method further includes forming the low surface energy membrane to the geometry of the surface of the article and applying pressure between the membrane and the article to transfer the membrane image from the membrane to the article.
    Type: Grant
    Filed: March 4, 2004
    Date of Patent: November 15, 2005
    Assignee: Exatec, LLC
    Inventors: Keith D. Weiss, Jason Beaudoin, Eric van der Meulen, Bien Trong Bui
  • Patent number: 6958189
    Abstract: The present invention is generally directed towards a polycarbonate surface having an ink printed on the surface. The ink adheres to the polycarbonate and is compatible with a hard coat applied to the polycarbonate substrate. The ink comprises a polycarbonate or a polyester resin or an acrylic resin. The ink composition also comprises a blend of polycarbonate ink or an acrylic ink with a polyester ink such that the ink adheres to the polycarbonate substrate on subjecting the substrate to water immersion and cataplasma tests.
    Type: Grant
    Filed: March 31, 2003
    Date of Patent: October 25, 2005
    Assignee: Exatec, LLC
    Inventors: Keith D. Weiss, Claus-Peter Reisinger, Jason Beaudoin
  • Publication number: 20040191521
    Abstract: The present invention is generally directed towards a polycarbonate surface having an ink printed on the surface. The ink adheres to the polycarbonate and is compatible with a hard coat applied to the polycarbonate substrate. The ink comprises a polycarbonate or a polyester resin or an acrylic resin. The ink composition also comprises a blend of polycarbonate ink or an acrylic ink with a polyester ink such that the ink adheres to the polycarbonate substrate on subjecting the substrate to water immersion and cataplasma tests.
    Type: Application
    Filed: March 31, 2003
    Publication date: September 30, 2004
    Applicant: Exatec LLC
    Inventors: Keith D. Weiss, Claus-Peter Reisinger, Jason Beaudoin
  • Patent number: 6027664
    Abstract: A magnetorheological fluid that includes a carrier component and a magnetizable particle component wherein the magnetizable particle component is a mixture of at least a first particle group having an average particle diameter and a second particle group having an average particle diameter wherein the average particle diameter of said first particle group is 3 to 15 times larger than the average particle diameter of said second particle group.
    Type: Grant
    Filed: August 12, 1998
    Date of Patent: February 22, 2000
    Assignee: Lord Corporation
    Inventors: Keith D. Weiss, J. David Carlson, Donald A. Nixon
  • Patent number: 5900184
    Abstract: A magnetorheological fluid that includes a carrier component and a magnetizable particle component wherein the magnetizable particle component has a fractional packing density of at least 0.50 prior to formulation into the magnetorheological fluid. Use of this magnetorheological fluid can increase the force output of a magnetorheological device without increasing the viscosity of the fluid because the particle volume concentration in a working gap of the device increases when a magnetic field is applied.
    Type: Grant
    Filed: October 18, 1995
    Date of Patent: May 4, 1999
    Assignee: Lord Corporation
    Inventors: Keith D. Weiss, J. David Carlson, Donald A. Nixon
  • Patent number: 5645752
    Abstract: A magnetorheological material containing a carrier fluid, a particle component and a thixotropic additive to provide stability against particle settling. The thixotropic additive can be a hydrogen-bonding thixotropic agent, a polymer-modified metal oxide, or a mixture thereof. The utilization of a thixotropic additive creates a thixotropic network which is unusually effective at minimizing particle settling in a magnetorheological material.
    Type: Grant
    Filed: December 20, 1995
    Date of Patent: July 8, 1997
    Assignee: Lord Corporation
    Inventors: Keith D. Weiss, Donald A. Nixon, J. David Carlson, Anthony J. Margida
  • Patent number: 5599474
    Abstract: A magnetorheological material containing a particle component and a carrier fluid or mixture of carrier fluids having a change in viscosity per degree temperature (.DELTA..eta./.DELTA.T ratio) less than or equal to about 16.0 centipoise/.degree.C. over the temperature range of about 25.degree. C. to -40.degree. C. The magnetorheological material exhibits a substantial magnetorheological effect and excellent lubricating properties with a minimal variation in mechanical properties with respect to changes in temperature. The magnetorheological material is advantageous in that it provides for the design of devices that are smaller, more efficient and consume less power.
    Type: Grant
    Filed: April 18, 1994
    Date of Patent: February 4, 1997
    Assignee: Lord Corporation
    Inventors: Keith D. Weiss, J. David Carlson, Theodore G. Duclos, Kirk J. Abbey
  • Patent number: 5578238
    Abstract: A magnetorheological material containing a carrier fluid and a magnetically active particle. The particle has been modified so that the surface of the particle is substantially free of contamination products. The contamination products are removed from the surface of the particle by abrader processing, chemical treatment or a combination thereof. Magnetorheological materials prepared using the particles from which contamination products have been removed exhibit significantly enhanced magnetorheological effects.
    Type: Grant
    Filed: April 13, 1994
    Date of Patent: November 26, 1996
    Assignee: Lord Corporation
    Inventors: Keith D. Weiss, J. David Carlson, Donald A. Nixon
  • Patent number: 5547049
    Abstract: Controllable composite structure or structural elements enclose magnetotheological fluids as a structural component between opposing containment layers to form at least a portion of any variety of extended mechanical systems, such as plates, panels, beams and bars or structures including these elements. The control of the stiffness and damping properties of the structure or structural elements is accomplished by changing the shear and compression/tension moduli of the magnetorheological fluid by varying the applied magnetic field. The composite structures of the present invention may be incorporated into a wide variety of mechanical systems for control of vibration and other properties.
    Type: Grant
    Filed: May 31, 1994
    Date of Patent: August 20, 1996
    Assignee: Lord Corporation
    Inventors: Keith D. Weiss, Theodore G. Duclos, Michael J. Chrzan, Lynn C. Yanyo
  • Patent number: 5508062
    Abstract: Disclosed is a method of forming a coating on a substrate. The method comprises applying a silane and, optionally, a titanium catalyst, onto the substrate and allowing the silane to hydrolyze and condense with atmospheric moisture to form an insoluble coating.
    Type: Grant
    Filed: December 2, 1994
    Date of Patent: April 16, 1996
    Assignee: Dow Corning Corporation
    Inventors: Loren A. Haluska, Cecil L. Frye, Harold L. Vincent, Keith D. Weiss
  • Patent number: 5417874
    Abstract: An electrorheological material comprising a carrier fluid and an atomically, polarizable particle component. The atomically polarizable particle component has a crystalline lattice structure which allows atoms to shift position with respect to each other in response to the application of an electric field. The electrorheological materials are subjected to an alternating current electric field at a frequency of at least 500 Hz. The materials exhibit substantial electrorheological activity over a broad temperature range.
    Type: Grant
    Filed: December 16, 1993
    Date of Patent: May 23, 1995
    Assignee: Lord Corporation
    Inventors: J. David Carlson, Keith D. Weiss