Patents by Inventor John A. Wise

John A. Wise 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).

  • Pipe production line for the manufacture of plastic pipe
    Patent number: 5460501
    Abstract: An improved pipe production line is provided having an improved manifold assembly component and an improved former component.
    Type: Grant
    Filed: April 7, 1994
    Date of Patent: October 24, 1995
    Assignee: Advanced Drainage Systems, Inc.
    Inventors: John Wise, Larry L. Martin
  • Pipe coupler
    Patent number: 5163717
    Abstract: A coupler for use with pipe is disclosed having a unitary tubular structure with an inner and an outer surface. The inner surface has at least one and preferably three interiorly depending ribs. The outer surface is preferably corrugated and has formed therein a plurality of valleys. The inner surface also has a plurality of valleys formed therein which may have associated therewith pressure beads. The inner surface valleys are disposed between adjacent interiorly depending ribs. The coupler preferably has its tubular structure encircled with means for clamping the coupler more tightly to a pipe. Also disclosed is the combination of the coupler securing adjacent pieces of corrugated double-wall plastic pipe to one another.
    Type: Grant
    Filed: October 25, 1990
    Date of Patent: November 17, 1992
    Assignee: Advanced Drainage Systems, Inc.
    Inventor: John Wise