Patents by Inventor Amrit Parhar

Amrit Parhar 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).

  • PLASTIC ADHESIVE
    Publication number: 20100006220
    Abstract: Macrocyclic compounds, e.g., ketones, crown ethers, methicones etc., have been found to be effective co-solvents in solvent based adhesives for pipe joining applications. Because of their enhanced solubility with VOC exempt solvents (40 C.F.R. 51.100), the calculated VOC content of the adhesive can be lowered to at least 75% of those established by SCAQMD Rule 116A.
    Type: Application
    Filed: July 11, 2008
    Publication date: January 14, 2010
    Applicant: OATEY COMPANY
    Inventors: Amrit Parhar, Forest Hamptom, III, Robert J. Duff
  • Universal solvent cement
    Patent number: 7592385
    Abstract: A solvent cement for bonding PVC, CPVC and ABS plastic pipe and other molded articles comprises a minor amount of an acrylic resin and one or more solvents capable of dissolving the acrylic resin and further capable of dissolving at least the surfaces of PVC, CPVC and ABS molded articles, wherein the acrylic resin constitutes at least 75 wt. % of the dissolved thermoplastic resin in the cement.
    Type: Grant
    Filed: May 6, 2005
    Date of Patent: September 22, 2009
    Assignee: Oatey Company
    Inventors: Charles N. Bush, Forest Hampton, III, Amrit Parhar
  • Universal solvent cement
    Publication number: 20060252865
    Abstract: A solvent cement for bonding PVC, CPVC and ABS plastic pipe and other molded articles comprises a minor amount of an acrylic resin and one or more solvents capable of dissolving the acrylic resin and further capable of dissolving at least the surfaces of PVC, CPVC and ABS molded articles, wherein the acrylic resin constitutes at least 75 wt. % of the dissolved thermoplastic resin in the cement.
    Type: Application
    Filed: May 6, 2005
    Publication date: November 9, 2006
    Inventors: Charles Bush, Forest Hampton, Amrit Parhar
  • Adhesive compositions and methods of using the same
    Publication number: 20060030689
    Abstract: Adhesive compositions are described which comprise at least one organic sulfoxide, sulfone or sulfide and at least one ketone, ether, ester, amide or carbonate or a mixture thereof. The adhesive compositions also may contain one or more water insoluble polymers such as ABS, PVC and CPVC. Methods of adhesively bonding or welding a first plastic surface to a second plastic surface using these adhesive compositions also are described.
    Type: Application
    Filed: April 12, 2005
    Publication date: February 9, 2006
    Inventors: Amrit Parhar, Forest Hampton, Charles Bush, Fred Scholer