Patents by Inventor Mario R. Pinto

Mario R. Pinto 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).

  • Spirally wound corrugated pipe connector
    Patent number: 4251094
    Abstract: An improved system for attaching a connecting device to the end of a spirally wound corrugated pipe section is disclosed. A conventional connector element is used which includes a first cylindrical portion adapted to connect to a corresponding connector element and a second cylindrical portion adapted to be inserted into the end of the corrugated pipe section. The outer diameter of the second cylindrical portion is approximately equal to but no greater than the inside diameter of the corrugated pipe section. A collar having a cylindrical portion with an inwardly directed circumferential flange is fitted over the end of the pipe so that the flange is beyond the end of the pipe section. The cylindrical portion of the collar has an inner diameter approximately equal to but no less than the outer diameter of the corrugated pipe section.
    Type: Grant
    Filed: May 10, 1979
    Date of Patent: February 17, 1981
    Assignee: Noll Manufacturing Co.
    Inventor: Mario R. Pinto