Weighted iron set
AssigneeAcushnet Company
InventorsMarni Ines, Jonathan Hebreo, Michael E. Franz, Joshua C. Stokes
Life of this patent
Estimating the term…
Abstract
The present invention is direct to a set of golf clubs comprising long irons, mid-irons and short irons. The invention contemplates the use of titanium or steel for the main body portion and significant tungsten weight members at the heel and toe.
Claims10
A set of golf clubs comprising at least a first club head having a loft between about 15 and 25 degrees, a second club head having a loft of between about 26 and 35 degrees, and a third club head having a loft of about 36 degrees or greater, wherein:
- the first, second and third club heads each comprise a solid volume, a heel, a toe, a topline, a sole, a hosel and a front face having a face center;
- wherein the first club head has an overall club head mass and is comprised of a first steel body member and a first steel face insert that together form an enclosed hollow portion and comprise less than 75 percent of the overall club head mass and is further comprised of a first tungsten heel member having a mass of about 30 g to 35 g located in a heel portion of the enclosed hollow portion and a first tungsten toe member located in a toe portion of the enclosed hollow portion, wherein the first tungsten toe member has greater mass than the first tungsten heel member and the first tungsten heel member and the first tungsten toe member together comprise more than 25 percent of the overall club head mass.
A set of golf clubs comprising at least a first golf club, a second golf club, and a third golf club, wherein:
- the first, second and third golf clubs are each comprising a heel, a toe, an upper surface, a lower surface, and a hosel, and
- the first golf club further comprising a first loft angle (LA1) of between 15 and 25 degrees and being formed from a first steel body member having a mass of between 110 g to 120 g, a first steel face insert having a mass of 30 g to 45 g that together form a first enclosed hollow portion, a first tungsten heel member having a mass of about 30 g to 35 g located in a heel side of the first enclosed hollow portion and a first tungsten toe member having a mass of 35 g to 55 g and located in a toe side of the first enclosed hollow portion, and a first blade length;
- the second golf club further comprising a second loft angle (LA2) of between 26 and 35 degrees and being formed from a second steel body member having a mass of 115 g to 145 g, a second steel face insert having a mass of 30 g to 45 g that together form a second enclosed hollow portion, a second tungsten heel member having a mass of 35 g or less located in a heel side of the second enclosed hollow portion, a second tungsten toe member having a mass of 50 g to 70 g located in a toe side of the second enclosed hollow portion, and a second blade length;
- and
- the third golf club comprising a third loft angle (LA3) of 36 degrees or greater having a third blade length;
- wherein the first, second and third blade lengths are approximately constant.
Dependencies are inferred from the claim text.