Patents by Inventor Earl Erling

Earl Erling 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: 4541447
    Abstract: A hot tape saddle fitting (FIG. 1), has means (5) for connecting a pipe to a chamber (4) having an opening of which a rim (14) in use seals with the exterior of a pressurized main pipe encircled by a collar (1). The fitting is characterized in that a cutter (6) within chamber (4) is operable to cut the saddled main pipe in a chordal direction whereby to connect the pipe to the mains pipe. For preference chamber (4) extends as an elongate tubular body (3) in the chordal direction and cutter (6), is hollow, tubular, sharpened at one end (61), closed at the other end (63), and sealing slideable within body (3).
    Type: Grant
    Filed: December 28, 1982
    Date of Patent: September 17, 1985
    Inventors: Karel Soumar, Earl Erling
  • Patent number: 4470193
    Abstract: Electric fusion pipe fittings for use in connecting plastics pipes may be manufactured by forming a groove (6) in a surface (2) of a filling (1) and laying a wire (8) in groove (6). Preferably groove (6) is formed by incision and the wire layed by groove cutting tool (4).
    Type: Grant
    Filed: April 9, 1982
    Date of Patent: September 11, 1984
    Assignee: Esdan Pty. Ltd.
    Inventors: Soumar Karel, Earl Erling