Patents by Inventor Willis Mitchell

Willis Mitchell 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).

  • Press fitting assembly
    Patent number: 11402045
    Abstract: A press fitting assembly is provided that includes: a piping component including a receiving device which includes an open end and a shoulder, the open end comprising a continuous stop; a grip ring positioned within the receiving device abutting the continuous stop and comprising a plurality of opposing teeth; a sealing element positioned within the receiving device and abutting the shoulder, wherein the sealing element comprises at least one lobe; and a separator ring positioned within the receiving device between the sealing element and the grip ring, the ring comprises a base portion and an angled portion. Further, the angled portion is angled toward the sealing element and the shoulder.
    Type: Grant
    Filed: March 17, 2020
    Date of Patent: August 2, 2022
    Assignee: NIBCO Inc.
    Inventors: Ronald D Paige, Willis Mitchell, David A Bobo
  • PRESS FITTING ASSEMBLY
    Publication number: 20200300391
    Abstract: A press fitting assembly is provided that includes a piping component including a receiving device comprising an open end and a shoulder. The open end includes a continuous stop. A grip ring is positioned within the receiving device abutting the continuous stop. The grip ring comprises a plurality of opposing teeth. A sealing element is positioned within the receiving device abutting the shoulder. The sealing element comprises a plurality of lobes. A separator ring is positioned within the receiving device between the sealing element and the grip ring. The separator ring comprises a base portion and an angled portion. The angled portion is angled toward the sealing element and the shoulder.
    Type: Application
    Filed: October 2, 2019
    Publication date: September 24, 2020
    Applicant: NIBCO INC.
    Inventors: Ronald D Paige, Willis Mitchell, David A Bobo
  • PRESS FITTING ASSEMBLY
    Publication number: 20200300395
    Abstract: A press fitting assembly is provided that includes: a piping component including a receiving device which includes an open end and a shoulder, the open end comprising a continuous stop; a grip ring positioned within the receiving device abutting the continuous stop and comprising a plurality of opposing teeth; a sealing element positioned within the receiving device and abutting the shoulder, wherein the sealing element comprises at least one lobe; and a separator ring positioned within the receiving device between the sealing element and the grip ring, the ring comprises a base portion and an angled portion. Further, the angled portion is angled toward the sealing element and the shoulder.
    Type: Application
    Filed: March 17, 2020
    Publication date: September 24, 2020
    Applicant: NIBCO INC.
    Inventors: Ronald D. Paige, Willis Mitchell, David A. Bobo