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US 4,214,754 AGranted
Metal golf driver and method of making same
AssigneePro-Patterns Inc.
InventorJohn Zebelean
Life of this patent
Estimating the term…
Abstract
An all metal hollow golf driver is formed by casting a first main part from metal, e.g., stainless steel, in the shape of practically a complete golf driver, except for an opening in one side of the driver body, e.g, the sole side. A second cast part fits within the opening and is weldable thereto to form a complete integral hollow metal golf driver. The weight (mass) of the driver is distributed in order to reduce its torque and/or deflection.
Claims18
A golf driver comprising:
- an enclosed all-metallic hollow body of preselected stainless steel shaped in the form of a golf driver head, defining a face side, a bottom, sole-defining side, and top and back sides extending from the upper end of said face side toward the rear end of said bottom side, said head further defining a heel and a hollow neck extending from said body at said heel at a preselected angle, and a toe opposite said heel, the mass of the metal forming said body being distributed so that the back side thickens from the heel toward the toe and from the top side to the sole side, and the toe thickens from the top side toward the sole side, so as to reduce the torque and the deflection of said driver when impacting a golf ball.
A method of fabricating a golf driver, the steps comprising:
- forming n different parts, where n is an integer, said parts being shaped so that when they are secured to one another they form a substantially hollow body in the shape of a golf driver with a neck extending therefrom, at least some of said n parts being formed from castable metal;
- and
- permanently securing said n parts to one another to form a said substantially hollow body in the shape of the golf driver having a heel and an opposite toe, a top side, a back side, a front face and a bottom sole opposite said top side, the thickness of the back side increasing from the heel toward the toe and from the top side toward the sole, while the thickness of the toe increases from near the top side toward the sole, the total weight being distributed to reduce the torque and/or deflection experienced when said driver impacts a golf ball.
A golf driver manufactured from substantially castable metal by the process comprising the steps of:
- casting metal in the shape of a hollow substantially-complete golf driver including a neck which is adapted to receive a golf shaft, said hollow cast metal driver having a side defining an opening and internal protrusions for strengthening the face of the driver to minimize its deformation by impact with a golf ball, the thickness of the cast metal driver at the driver toe and at the sole is thicker than the top of the driver, and the thickness of the front face of the driver increases from the top side of the driver to its sole side and from the toe toward the heel;
- and
- securing a piece of matter to enclose said opening.
Dependencies are inferred from the claim text.