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US 7,726,246 B2Granted
Tamping tool
AssigneeBallast Tools, Inc.
InventorEdward Williams
Life of this patent
Estimating the term…
Abstract
The present invention comprises a tamping tool comprising a shank and a blade, with the blade having various arrangements of wear-resistant material affixed to the face of the blade by means of brazing, soldering, gluing or other method. Additionally, some arrangements of the tamping tool have a wear-resistant tip inserted into a groove in the end of the blade. The tamping tool of the present invention reduces wear, providing an increased life and increasing the time intervals at which it becomes necessary to replace the tamping tool.
Claims9
A tamping tool, comprising:
- a blade having a shank at its upper end, top and bottom faces generally converging toward a leading edge opposed to the shank, and a pair of sides connecting the top and bottom faces, the blade and shank being a single unit;
- a layer of wear-resistant tiles secured to and covering a substantial portion of the top face;
- at least one wear-resistant tile secured to and covering a portion of the bottom face and the leading edge, a portion of the at least one tile covering the leading edge having a rounded leading edge;
- and
- a plurality of wear-resistant cylinders secured to one of the sides, each cylinder having a longitudinal axis that is parallel to the leading edge.
2 more elements
A tamping tool, comprising:
- a steel blade having a generally cylindrical shank at its upper end, top and bottom faces extending from the shank generally forming a leading edge, and a pair of flat sides connecting the top and bottom faces, the blade and shank being a single unit;
- a layer of tungsten carbide wear-resistant material secured to and covering a substantial portion of the top face;
- at least one wear-resistant tile secured to and covering a portion of the bottom face and the leading edge, a portion of the at least one tile covering the leading edge having a rounded leading edge;
- and
- a plurality of wear-resistant cylinders secured to each of the flat sides, each cylinder having a longitudinal axis that is parallel to the leading edge.
2 more elements
A tamping tool, comprising:
- a blade having a cylindrical shank at its back end, a slanted top face extending from the top of the shank and converging with a bottom face to form a leading edge opposed to the shank, and a pair of flat sides connecting the top and bottom faces, the blade and shank being a single unit;
- a first set of tungsten carbide wear-resistant tiles secured to and covering a substantial portion of the top face and a top portion of the shank;
- a second set of tungsten carbide wear-resistant tiles secured to and covering a portion of the bottom face and the leading edge, the second set of tiles covering the leading edge having a dull leading edge;
- and
- a plurality of wear-resistant cylinders secured to one of the sides, each cylinder having a longitudinal axis that is parallel to the leading edge.
2 more elements
Dependencies are inferred from the claim text.