Patents by Inventor Charles N. Chatterley

Charles N. Chatterley 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).

  • Method and apparatus for cold rolling piping element connections having multiple outward steps
    Patent number: 5570603
    Abstract: An apparatus for cold rolling a piping element connection with multiple outward steps has first and second rollers, a driver for the second roller, and a positioning roller. The first roller rotates about a first axis, with first and second upper surfaces of rotation centered thereabout, the first surface mean diameter being less than that of the second surface. The first roller has an upper leading edge between the first and second upper surfaces. The second roller is mounted for rotation about a second axis parallel to the first axis, with first and second lower surfaces of rotation centered thereabout, the first surface mean diameter being less than that of the second surface, and the second roller having a lower trailing edge between the first and second lower surfaces.
    Type: Grant
    Filed: February 8, 1995
    Date of Patent: November 5, 1996
    Assignee: Grinnell Corporation
    Inventors: Charles N. Chatterley, Michael W. Horgan, Sandra M. Lippka
  • Method and apparatus for forming piping element connections having multiple outward steps
    Patent number: 5450738
    Abstract: An apparatus for forming a piping element connection with multiple outward steps has first and second rollers, a driver for the second roller, and a positioning roller. The first roller rotates about a first axis, with first and second upper surfaces of rotation centered thereabout, the first surface mean diameter being less than that of the second surface. The first roller has an upper leading edge between the first and second upper surfaces. The second roller is mounted for rotation about a second axis parallel to the first axis, with first and second lower surfaces of rotation centered thereabout, the first surface mean diameter being greater than that of the second surface, and the second roller having a lower trailing edge between the first and second lower surfaces. The first and second rollers are mounted for movement together and apart in a plane of the first and second axes for engagement and forming of multiple outward steps in the piping element connection placed therebetween.
    Type: Grant
    Filed: August 31, 1993
    Date of Patent: September 19, 1995
    Assignee: Grinnell Corporation
    Inventors: Charles N. Chatterley, Michael W. Horgan