Patents by Inventor Gregory Eugene Nahrgang

Gregory Eugene Nahrgang 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: 11149426
    Abstract: A toilet assembly comprises a mounting surface defining an opening in which a waste pipe is located. The waste pipe has an end at a location no higher than flush with the mounting surface. A toilet having a drain aligned with the waste pipe is also provided. A ring gasket (e.g., a wax seal) has at least a portion situated around the drain of the toilet. A closet flange has a tubular portion having a proximal end and a distal end and a flange portion located at the proximal end of the tubular portion. The flange portion is connected to the mounting surface. The end of the waste pipe is received in the tubular portion of the closet flange such that an outer surface of the waste pipe is adjacent to an inner surface of the tubular portion. A seal ring is disposed between the inner surface of the tubular portion and the outer surface of the waste pipe.
    Type: Grant
    Filed: June 12, 2019
    Date of Patent: October 19, 2021
    Assignee: Charlotte Pipe and Foundry Company
    Inventors: Gregory Eugene Nahrgang, Evan Knapp
  • Publication number: 20200392716
    Abstract: A toilet assembly comprises a mounting surface defining an opening in which a waste pipe is located. The waste pipe has an end at a location no higher than flush with the mounting surface. A toilet having a drain aligned with the waste pipe is also provided. A ring gasket (e.g., a wax seal) has at least a portion situated around the drain of the toilet. A closet flange has a tubular portion having a proximal end and a distal end and a flange portion located at the proximal end of the tubular portion. The flange portion is connected to the mounting surface. The end of the waste pipe is received in the tubular portion of the closet flange such that an outer surface of the waste pipe is adjacent to an inner surface of the tubular portion. A seal ring is disposed between the inner surface of the tubular portion and the outer surface of the waste pipe.
    Type: Application
    Filed: June 12, 2019
    Publication date: December 17, 2020
    Inventors: Gregory Eugene Nahrgang, Evan Knapp
  • Publication number: 20180252344
    Abstract: A mechanical coupling between a straight pipe end and a socket fitting comprises a seal ring and a locking ring disposed within the interior of the socket. The locking ring has a generally frustoconical shape with a plurality of corrugations extending circumferentially thereabout, the corrugations presenting inner edge portions engaging the outer annular surface of the pipe end and outer edge portions engaging the interior annular surface of the socket for opposing withdrawal of the pipe end axially outwardly from the socket.
    Type: Application
    Filed: December 20, 2016
    Publication date: September 6, 2018
    Inventors: William Boykin Morris, Gregory Eugene Nahrgang, Adam John Miloser, Haskell Simpkins, Robert Gerald States, III
  • Patent number: 9568127
    Abstract: A mechanical coupling between a straight pipe end and a socket fitting comprises a seal ring and a locking ring disposed within the interior of the socket. The locking ring has a generally frustoconical shape with a plurality of corrugations extending circumferentially thereabout, the corrugations presenting inner edge portions engaging the outer annular surface of the pipe end and outer edge portions engaging the interior annular surface of the socket for opposing withdrawal of the pipe end axially outwardly from the socket. In an advantageous embodiment, the locking ring is assembled with a support disk to optimally orient the locking ring with respect to the fitting and the pipe end.
    Type: Grant
    Filed: June 30, 2014
    Date of Patent: February 14, 2017
    Assignee: Charlotte Pipe and Foundry Company
    Inventors: William Boykin Morris, Gregory Eugene Nahrgang, Adam John Miloser, Haskell Simpkins, Robert Gerald States, III
  • Publication number: 20140312616
    Abstract: A mechanical coupling between a straight pipe end and a socket fitting comprises a seal ring and a locking ring disposed within the interior of the socket. The locking ring has a generally frustoconical shape with a plurality of corrugations extending circumferentially thereabout, the corrugations presenting inner edge portions engaging the outer annular surface of the pipe end and outer edge portions engaging the interior annular surface of the socket for opposing withdrawal of the pipe end axially outwardly from the socket. In an advantageous embodiment, the locking ring is assembled with a support disk to optimally orient the locking ring with respect to the fitting and the pipe end.
    Type: Application
    Filed: June 30, 2014
    Publication date: October 23, 2014
    Inventors: William Boykin Morris, Gregory Eugene Nahrgang, Adam John Miloser, Haskell Simpkins, Robert Gerald States, III
  • Patent number: 8801048
    Abstract: A mechanical coupling between a straight pipe end and a socket fitting comprises a seal ring and a locking ring disposed within the interior of the socket. The locking ring has a generally frusto-conical shape with a plurality of corrugations extending circumferentially thereabout, the corrugations presenting inner edge portions engaging the outer annular surface of the pipe end and outer edge portions engaging the interior annular surface of the socket for opposing withdrawal of the pipe end axially outwardly from the socket. In an advantageous embodiment, the locking ring is assembled with a support disk to optimally orient the locking ring with respect to the fitting and the pipe end.
    Type: Grant
    Filed: November 27, 2012
    Date of Patent: August 12, 2014
    Inventors: William Boykin Morris, Gregory Eugene Nahrgang, Adam John Miloser, Haskell Simpkins, Robert Gerald States