Cast aluminum alloy hammer
AssigneeZephyr Industries, Inc.
InventorVincent J. Richilano
Life of this patent
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Abstract
A hammer cast in a sand mold of one piece including a head and a handle. The material of which it is cast is a magnesium aluminum alloy. Both the handle and head have axes which are normal to each other and a rod is mounted in the handle extending the length of the handle and completely through the head with the rod being essentially coaxial with the handle. Serrations formed in the rod enhance the anchoring of the alloy and the serrations are formed on the rod such that the plane passing through the axes of the handle and head does not pass through the serrations. The handle merges in a smooth curve into the head of the hammer, the merging surface defining a smooth concave exterior surface on the handle with no sharp angular edges.
Claims10
A one piece hammer structure comprising:
- integrally cast head and handle portions merging together at a merger area, said head and handle portions each including a longitudinal axis, said axes being generally normal to each other with said merger area being generally centrally disposed on said head portion with said head portion having a generally cylindrical configuration including opposed striking faces disposed generally normal to said head axis;
- said handle portion expanding in size adjacent said merger area to define a concave exterior surface merging smoothly with the exterior surface of said head without any sharp angular edges, said concave exterior surface being concave in all planes passing through said handle axis;
- and,
- said head and handle portions being comprised of an aluminum alloy having non-sparking characteristics when the head portion is struck against any object target not including iron oxides, said aluminum alloy having the following composition:
- Copper 0- 1.00% Zinc 0- 0.10% Iron 0- 1.80% Silicon 0- 0.35% Manganese 0.10- 0.35% Magnesium 6.50- 8.50% Beryllium 0- 0.005% Boron 0- 0.001% Titanium 0.10- 0.25% Sodium 0- 0.002% Nickel 0- 0.15% Tin 0- 0.15%
- the balance being aluminum.
A hammer comprising:
- integrally formed head and handle portions cast from an aluminum alloy having the following composition:
- Copper 0 - 1.00% Zinc 0 - 0.10% Iron 0 - 1.80% Silicon 0 - 0.35% Manganese 0.10 - 0.35% Magnesium 6.50 - 8.50% Beryllium 0 - 0.005% Boron 0 - 0.001% Titanium 0.10 - 0.25% Sodium 0 - 0.002% Nickel 0 - 0.15% Tin 0 - 0.15%
- the balance being aluminum;
- said head and handle portions each having a longitudinal axis, said portions merging together at a merger area with said head and handle axes disposed generally normal to each other, said handle portion expanding in size adjacent said head portion to define a concave exterior surface merging smoothly with the exterior surface of said head without any sharp angular edges, said handle axis bisecting said head portion and said concave exterior surface being concave in all planes passing through said handle axis;
- a steel rod extending generally coaxially through said handle portion into said head portion, said rod including irregularities on the exterior thereof for providing anchoring means between the rod and hammer, said irregularities being located on the surface of said rod whereby a plane passing through both the handle and head axes does not intersect said irregularities.
Dependencies are inferred from the claim text.