Patents by Inventor ChangQing Shen

ChangQing Shen 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: 8006519
    Abstract: Fiberizing bushings for fiberizing molten materials including molten glass are heated by applying a voltage drop across the bushings wherein molten material flows through an array of hollow tips attached to, or integral with, a tip plate having orifices therein that generally align with channels through the hollow tips to form fibers. The uniformity of the diameter of the fibers produced is much improved by using tips of different lengths and/or tips having channels of differing ID's to compensate for unequal electrical heating and/or cooling effects of drawn-in ambient air that cools the tips on the extreme outer periphery and/or cooling or heating effects of external supports or cooling members running through the array of tips that cools or heats adjacent tips more than the interior tips.
    Type: Grant
    Filed: April 10, 2007
    Date of Patent: August 30, 2011
    Assignee: Johns Manville
    Inventors: ChangQing Shen, Alessandro G. Borsa, Terry Hanna
  • Patent number: 7991504
    Abstract: A method for determining the extent of cure of binder in a product comprising heating a sample of the product to vaporize free moisture in the sample and expel vaporized free moisture from the sample, measuring cure moisture content of the product, measuring binder content of the product, calculating a product ratio of cure moisture content to binder content, and comparing the product ratio of cure moisture content to binder content to a predetermined desirable ratio of cure moisture content to binder content.
    Type: Grant
    Filed: July 7, 2008
    Date of Patent: August 2, 2011
    Assignee: Johns Manville
    Inventors: Ames Kulprathipanja, ChangQing Shen, Richard Thomas Packard, Kurt A. Lintelmann
  • Patent number: 7802529
    Abstract: A process is described for treating a nonwoven fabric to improve the gripping ability of the fabric during the preparation of tufted carpets. The process includes the steps of applying an elastomeric binder to the fabric, treating the fabric to provide a series of depressions or holes in a pattern consistent with the tufting needle pattern to be subsequently applied, and then curing the binder. The resultant fabric has a pattern of holes or depressions which are essentially free of binder with excess binder squeezed from the depressions forming rings around the depressions. When the tufting needle is inserted into the depression or hole, the elastomeric ring surrounding the hole expands. Upon retraction of the needle, the elastomeric ring contracts and exerts a firm grip on the tuft in the hole.
    Type: Grant
    Filed: May 16, 2006
    Date of Patent: September 28, 2010
    Assignee: Johns Manville
    Inventors: ChangQing Shen, Lester M. Aseere
  • Publication number: 20100001422
    Abstract: A method for determining the extent of cure of binder in a product comprising heating a sample of the product to vaporize free moisture in the sample and expel vaporized free moisture from the sample, measuring cure moisture content of the product, measuring binder content of the product, calculating a product ratio of cure moisture content to binder content, and comparing the product ratio of cure moisture content to binder content to a predetermined desirable ratio of cure moisture content to binder content.
    Type: Application
    Filed: July 7, 2008
    Publication date: January 7, 2010
    Inventors: Ames Kulprathipanja, ChangQing Shen, Richard Thomas Packard, Kurt A. Lintelmann
  • Publication number: 20090277126
    Abstract: A rolled sheet product, the sheet product comprising a top layer and a bottom layer, the top layer being less ductile than the bottom layer, and the top layer facing outward in the rolled sheet product. A method of packaging a sheet product comprising a top layer and a bottom layer, the top layer being less ductile than the bottom layer, comprising winding the sheet product into a roll such that the top layer faces outward.
    Type: Application
    Filed: May 6, 2008
    Publication date: November 12, 2009
    Inventors: Heidi Ailee Wollert, ChangQing Shen, David Allen Bentley, Joel Evan Hazy
  • Publication number: 20080250818
    Abstract: Fiberizing bushings for fiberizing molten materials including molten glass are heated by applying a voltage drop across the bushings wherein molten material flows through an array of hollow tips attached to, or integral with, a tip plate having orifices therein that generally align with channels through the hollow tips to form fibers. The uniformity of the diameter of the fibers produced is much improved by using tips of different lengths and/or tips having channels of differing ID's to compensate for unequal electrical heating and/or cooling effects of drawn-in ambient air that cools the tips on the extreme outer periphery and/or cooling or heating effects of external supports or cooling members running through the array of tips that cools or heats adjacent tips more than the interior tips.
    Type: Application
    Filed: April 10, 2007
    Publication date: October 16, 2008
    Inventors: ChangQing Shen, Alessandro G. Borsa, Terry Hanna
  • Publication number: 20070266534
    Abstract: A process is described for treating a nonwoven fabric to improve the gripping ability of the fabric during the preparation of tufted carpets. The process includes the steps of applying an elastomeric binder to the fabric, treating the fabric to provide a series of depressions or holes in a pattern consistent with the tufting needle pattern to be subsequently applied, and then curing the binder. The resultant fabric has a pattern of holes or depressions which are essentially free of binder with excess binder squeezed from the depressions forming rings around the depressions. When the tufting needle is inserted into the depression or hole, the elastomeric ring surrounding the hole expands. Upon retraction of the needle, the elastomeric ring contracts and exerts a firm grip on the tuft in the hole.
    Type: Application
    Filed: May 16, 2006
    Publication date: November 22, 2007
    Inventors: ChangQing Shen, Lester M. Aseere