Patents by Inventor Walter R. Stelling

Walter R. Stelling 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: 5630874
    Abstract: Apparatus and process are described for impregnating a fibrous substrate with a thermosettable resin. The process involves the use of resin application means comprising a moving surface on which is positioned a liquid-form thermosettable resin in essentially uncured state, passing a fibrous web in countercurrent contact with the thermosettable resin so as to transfer the thermosettable resin into the fibrous web, and passing the resin-containing fibrous web to a heating zone to partially cure the resin and form a prepreg. The process is particularly suited for application of a solventless resin formulation to a glass web in the preparation of a prepreg for an electrical laminate.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: May 20, 1997
    Assignee: Shell Oil Company
    Inventors: Robert A. Tait, Walter R. Stelling, John J. Hartley, Donald M. Chevako
  • Patent number: 5492722
    Abstract: Apparatus and process are described for impregnating a fibrous substrate with a thermosettable resin. The process involves the use of resin application means comprising a moving surface on which is positioned a liquid-form thermosettable resin in essentially uncured state, passing a fibrous web in countercurrent contact with the thermosettable resin so as to transfer the thermosettable resin into the fibrous web, and passing the resin-containing fibrous web to a heating zone to partially cure the resin and form a prepreg. The process is particularly suited for application of a solventless resin formulation to a glass web in the preparation of a prepreg for an electrical laminate.
    Type: Grant
    Filed: May 25, 1994
    Date of Patent: February 20, 1996
    Assignee: Shell Oil Company
    Inventors: Robert A. Tait, Walter R. Stelling, John J. Hartley, Donald M. Chevako
  • Patent number: 4362098
    Abstract: To enable the printing cylinder of a rotary press, which carries printing plates, to move to and from operative proximity to an impression cylinder rotatable on a fixed axis, the respective printing cylinder bearings are eccentrically mounted on large diameter disc-like bearing carriers, each rotatable in a hole in a rigid side frame member, said holes being coaxial. Each of the bearings for an anilox cylinder that transfers ink to the printing cylinder is similarly eccentrically mounted on a small diameter circular bearing carrier rotatable in an eccentric hole in a large diameter bearing carrier. Each bearing carrier has a frustoconical edge surface tapering in one axial direction, and the hole in which it rotates has a matingly tapered edge surface to define a limit of its axial motion in said direction, at which it is confined.
    Type: Grant
    Filed: August 4, 1980
    Date of Patent: December 7, 1982
    Assignee: Faustel, Inc.
    Inventors: Walter R. Stelling, Jr., William A. Cummins, John F. Beaudoin