Patents by Inventor Richard F. Moellenberg, Jr.

Richard F. Moellenberg, Jr. 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 for honing blind bores in workpieces
    Patent number: 6780084
    Abstract: A device for honing blind bores in parts, a blind bore including a cylindrical bore open at one end and closed adjacent to the opposite end including a honing mandrel for mounting on a honing machine that produces rotation thereof, the mandrel having a cylindrical honing portion adjacent one end which portion and the adjacent portion of the mandrel have spaced axially extending slot therethrough to enable the honing portion of the mandrel to expand and contract in size, the honing portion having a portion adjacent to the end thereof which is somewhat larger than the rest of the honing portion when the honing portion is expanded for honing in the blind hole, the end portions of the mandrel between the spaced slots being elastically expandable from a retracted position which is less than the diameter of the surface to be honed to enable insertion therein to a more expanded condition wherein the diameter of the honing portion at the largest point is the diameter at which the mandrel will hone the blind hole.
    Type: Grant
    Filed: March 3, 2003
    Date of Patent: August 24, 2004
    Assignee: Sunnen Products Company
    Inventors: Richard F. Moellenberg, Jr., John J. Schimweg, David M. Moehn
  • Honing tool used to finish blind bores in workpieces and the method of using such tool
    Patent number: 6527620
    Abstract: A device for honing blind bores in parts, a blind bore including a cylindrical bore open at one end and closed adjacent to the opposite end including a honing mandrel for mounting on a honing machine that produces rotation thereof, the mandrel having a cylindrical honing portion adjacent one end which portion and the adjacent portion of the mandrel have spaced axially extending slot therethrough to enable the honing portion of the mandrel to expand and contract in size, the honing portion having a portion adjacent to the end thereof which is somewhat larger than the rest of the honing portion when the honing portion is expanded for honing in the blind hole, the end portions of the mandrel between the spaced slots being elastically expandable from a retracted position which is less than the diameter of the surface to be honed to enable insertion therein to a more expanded condition wherein the diameter of the honing portion at the largest point is the diameter at which the mandrel will hone the blind hole.
    Type: Grant
    Filed: June 21, 1999
    Date of Patent: March 4, 2003
    Assignee: Sunnen Products Company
    Inventors: Richard F. Moellenberg, Jr., John J. Schimweg, David M. Moehn