Iron golf-club head and an iron golf club including the same

Details Iron golf-club head and an iron golf club including the same Iron golf-club head and an iron golf club including the same

2005-02-18

2008-05-13

Hunter, Jr., Alvin A (Department: 3711)

Games using tangible projectile

Golf

Club or club support

C473S342000

Reexamination Certificate

active

07371189

ABSTRACT:
A configuration of an iron golf-club head is defined as follows in order to offer ease of addressing a ball with face open. In a projected figure of the head focused on a projection plane including a sweet spot and normal to a perpendicular from a center of gravity of the head to a face thereof, a maximum transversal is defined by a straight line cutting across a face contour over the greatest length as passing through an intersection of a leading edge and a straight line drawn from a heel-side end point of a face line in a predetermined direction of the projected figure, and forms an angle of 39° to 50° (inclusive) relative to a horizontal line. The face contour has a radius of curvature of 10 mm to 22 mm (inclusive) in the vicinity of a toe-side intersection of the face contour and the maximum transversal.

REFERENCES:
patent: 5209473 (1993-05-01), Fisher
patent: 5976029 (1999-11-01), Sherwood
patent: 2000-116828 (2000-04-01), None

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