Patents by Inventor Bramwell Bone

Bramwell Bone 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).

  • Publication number: 20080101880
    Abstract: A milling apparatus and method are provided for generating eccentric camshaft lobes with a peripheral surface that is parallel to the horizontal axis of the camshaft for preferably the entire 360° peripheral surface of the lobe. In one form, the cutter is shifted during milling so that the cutting insert is cutting the peripheral surface on the lobe that is always parallel to the camshaft axis. The cutter head can be tilted to keep the cutting edge straight and parallel to the camshaft axis and, as the cutting head pivots the cutting edge, it also moves sideways with the width of the cutter covering the width of the lobe's peripheral surface. If an eccentric lobe is of a drastic shape where the cutting edge does not cover the entire width of the lobe, a fourth axis may be used in an interpolative manner to keep the cutting edge always bridging the lobe surface.
    Type: Application
    Filed: November 13, 2007
    Publication date: May 1, 2008
    Inventor: Bramwell Bone
  • Publication number: 20070048098
    Abstract: An apparatus and method are provided for performing multiple machining operations on a workpiece such as a crankshaft. Oil holes may be drilled in a crankshaft by a tool shifted along a curved path between successive, acute angle tool plunging locations. The tool's carrier is shifted parallel to the crankshaft axis and the tool carrier is rotated to the desired acute angle about a point on the crankshaft axis for each of successive oil hole drilling locations thereby reducing programming needed to drill the oil holes at the specified angles. Offset tolerance errors are reduced by a large factor as the tool is plunged from an outer initial position toward the crankshaft axis.
    Type: Application
    Filed: August 31, 2005
    Publication date: March 1, 2007
    Inventors: Bramwell Bone, Paul Haddad, Ned Arnold
  • Publication number: 20060000254
    Abstract: A method and apparatus are provided for rolling outer fillets of arcuately offset, split pin bearings on crankshafts with a pair of work rollers, each pair engaging and rolling a respective outer pin fillet. A backup roller is positioned opposite the pair of work rollers. The work rollers may be positioned above and below a centerline of the split pin, preferably about 90° apart. The work rollers can perform identical rolling operations at identical pressure and the work rollers and backup rollers are positioned to keep the adjacent tool heads in parallel planes during these rolling operations. Rolling arms carry the tool heads and stops are provided to keep rear portions of the tool arms in parallel planes against sideways forces. The work rollers and the backup roller may be mounted on the same tool arm and are movable relative to each to clamp or release a pin bearing.
    Type: Application
    Filed: June 1, 2005
    Publication date: January 5, 2006
    Inventor: Bramwell Bone