Patents by Inventor Robert H. Nowak

Robert H. Nowak 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: 4063471
    Abstract: A cup-shaped wheel having an abrasive rim is employed to grind the teeth of a circular saw to an improved contour. Only point or edge contact takes place between the abrasive rim and the tooth. This technique is preferably utilized in conjunction with triple-chip type circular saws of the sort used to cut metals such as steel. The contour imparted to the cutting surface of the tooth comprises a section of an elliptical cylinder and exhibits improved steel cutting characteristics when compared to prior art multi-faceted saw teeth. Since only edge contact takes place between the abrasive rim and the tooth, the wheel is essentially self-dressing.
    Type: Grant
    Filed: December 20, 1976
    Date of Patent: December 20, 1977
    Assignee: The Motch & Merryweather Machinery Company
    Inventor: Robert H. Nowak
  • Patent number: 4060880
    Abstract: A cup-shaped wheel having an abrasive rim is employed to grind the teeth of a circular saw to an improved contour. Only point or edge contact takes place between the abrasive rim and the tooth. This technique is preferably utilized in conjunction with triple-chip type circular saws of the sort used to cut metals such as steel. The contour imparted to the cutting surface of the tooth comprises a section of an elliptical cylinder and exhibits improved steel cutting characteristics when compared to prior art multi-faceted saw teeth. Since only edge contact takes place between the abrasive rim and the tooth, the wheel is essentially self-dressing.
    Type: Grant
    Filed: June 17, 1976
    Date of Patent: December 6, 1977
    Assignee: The Motch and Merryweather Machinery Company
    Inventor: Robert H. Nowak
  • Patent number: 4034630
    Abstract: A circular saw includes a plurality of teeth having an improved metal breaking geometry. The saw is especially adapted to cut hard, brittle materials such as steel bars and the like. The saw teeth are generated by a cup shaped grinding wheel having a grinding face on its inside surface. By bringing the rotating inner surface of the grinding wheel into contact with each tooth, it is possible to produce a working surface on each tooth which exhibits improved metal breaking and self-cleaning characteristics. The working surface thus generated is characterized by the fact that all points on the working surface which lie in the same given plane perpendicualr to the axis of rotation of the grinding wheel are equally distant from any given point on that axis. The working surface is preferably a section of a cylinder or cone, but may exhibit irregularities or discontinuities for special applications.
    Type: Grant
    Filed: March 3, 1976
    Date of Patent: July 12, 1977
    Assignee: The Motch & Merryweather Machinery Company
    Inventor: Robert H. Nowak
  • Patent number: 4012820
    Abstract: A circular saw includes a plurality of teeth having an improved metal breaking geometry. The saw is especially adapted to cut hard, brittle materials such as steel bars and the like. The saw teeth are generated by a cup shaped grinding wheel having a grinding face on its inside surface. By bringing the rotating inner surface of the grinding wheel into contact with each tooth, it is possible to produce a working surface on each tooth which exhibits improved metal breaking and self-cleaning characteristics. The working surface thus generated is characterized by the fact that all points on the working surface which lie in the same given plane perpendicular to the axis of rotation of the grinding wheel are equally distant from any given point on that axis. The working surface is preferably a section of a cylinder or cone, but may exhibit irregularities or discontinuities for special applications.
    Type: Grant
    Filed: June 16, 1975
    Date of Patent: March 22, 1977
    Assignee: The Motch & Merryweather Machinery Company
    Inventor: Robert H. Nowak