US20170173417A1 - Golf Club Head With Structural Columns - Google Patents
Golf Club Head With Structural Columns Download PDFInfo
- Publication number
- US20170173417A1 US20170173417A1 US15/447,638 US201715447638A US2017173417A1 US 20170173417 A1 US20170173417 A1 US 20170173417A1 US 201715447638 A US201715447638 A US 201715447638A US 2017173417 A1 US2017173417 A1 US 2017173417A1
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- United States
- Prior art keywords
- structural connector
- golf club
- club head
- crown
- toe
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B53/00—Golf clubs
- A63B53/04—Heads
- A63B53/0466—Heads wood-type
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B53/00—Golf clubs
- A63B53/04—Heads
- A63B53/0408—Heads characterised by specific dimensions, e.g. thickness
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B53/00—Golf clubs
- A63B53/04—Heads
- A63B53/0433—Heads with special sole configurations
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B53/00—Golf clubs
- A63B53/04—Heads
- A63B53/0437—Heads with special crown configurations
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B53/00—Golf clubs
- A63B53/04—Heads
- A63B53/045—Strengthening ribs
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B60/00—Details or accessories of golf clubs, bats, rackets or the like
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- A63B2053/0408—
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- A63B2053/0412—
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- A63B2053/0433—
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- A63B2053/0437—
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- A63B2053/045—
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B2209/00—Characteristics of used materials
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B53/00—Golf clubs
- A63B53/04—Heads
- A63B53/0408—Heads characterised by specific dimensions, e.g. thickness
- A63B53/0412—Volume
Abstract
Description
- The Present Application is a continuation-in-part application of U.S. patent application Ser. No. 15/279,188 filed on Sep. 28, 2016, which is a continuation application of U.S. patent application Ser. No. 14/847,227 filed on Sep. 8, 2015, now U.S. Pat. No. 9,486,677, issued on Nov. 8, 2016, which is a continuation-in-part application of U.S. patent application Ser. No. 14/285,479 filed on May 22, 2014, and issued on Dec. 15, 2015, as U.S. Pat. No. 9,211,451, which is a continuation-in-part application of U.S. patent application Ser. No. 13/788,173 filed on Mar. 7, 2013, and issued on Jan. 6, 2015, as U.S. Pat. No. 8,926,448, and also is a continuation-in-part application of U.S. patent application Ser. No. 14/794,578 filed on Jul. 8, 2015, and also is a continuation-in-part application of U.S. patent application Ser. No. 14/788,326 filed on Jun. 30, 2015, which is a continuation-in-part of U.S. patent application Ser. No. 14/755,068, filed on Jun. 30, 2015, which is a continuation-in-part application of U.S. patent application Ser. No. 14/498,843 filed on Sep. 26, 2014, and issued on Feb. 16, 2016, as U.S. Pat. No. 9,259,627, which is a continuation-in-part application of U.S. patent application Ser. No. 14/173,615 filed on Feb., 5, 2014, and issued on Nov. 10, 2015, as U.S. Pat. No. 9,180,349, which claims priority to U.S. Provisional Patent Application No. 61/898,956 filed on Nov. 1, 2013, now expired, and which is a continuation-in-part application of U.S. patent application Ser. No. 14/039,102 filed on Sep. 27, 2013, and issued on Sep. 16, 2014, as U.S. Pat. No. 8,834,294, which is a continuation application of U.S. patent application Ser. No. 13/797,404 filed on Mar. 12, 2013, now abandoned, which claims priority to U.S. Provisional Patent Application Nos. 61/665,203 filed on Jun. 27, 2012, now expired, and 61/684,079 filed on Aug. 16, 2012, now expired, the disclosure of each of which is hereby incorporated by reference in its entirety herein.
- Not Applicable
- The present invention relates to a golf club head. More specifically, the present invention relates to a golf club head with stress-reducing features connecting a crown portion with a sole portion via a hollow interior and disposed proximate a striking face section.
- The prior art discloses various golf club heads having interior structures. For example, Kosmatka, U.S. Pat. No. 6,299,547 for a Golf Club Head With an Internal Striking Plate Brace, discloses a golf club head with a brace to limit the deflection of the striking plate, Yabu, U.S. Pat. No. 6,852,038 for a Golf Club Head And Method of Making The Same, discloses a golf club head with a sound bar, Galloway, U.S. Pat. No. 7,118,493 for a Multiple Material Golf Club Head, discloses a golf club head with a composite aft body having an interior sound component extending upward from a sole section of a metal face component, Seluga et al., U.S. Pat. No. 8,834,294 for a Golf Club Head With Center Of Gravity Adjustability, discloses a golf club head with a tube having a mass for adjusting the CG of a golf club head, and Dawson et al., U.S. Pat. No. 8,900,070 for a Weighted Golf Club Head discloses a golf club head with an interior weight lip extending from the sole towards the face. However, the prior art fails to disclose an interior structure that increases ball speed through reducing stress in the striking face section at impact, with a minimal increase in mass to the golf club head.
- The golf club head comprises interior structures connecting a crown section to a sole section to reduce the stress in a striking face section during impact with a golf ball. In some embodiments, the interior structures are hollow tubes or solid rods composed of a titanium alloy.
- One aspect of the present invention is a golf club head comprising a cast metal body. The cast metal body comprises a toe structural connector, a heel structural connector, a striking face section, a crown return portion and a sole section. The toe structural connector comprises a body with a crown end, a sole end, a forward surface, a rearward surface, a heel surface and a toe surface. The heel structural connector comprises a body with a crown end, a sole end, a forward surface, a rearward surface, a heel surface and a toe surface. The striking face section has an exterior surface, an interior surface, an upper perimeter and a lower perimeter. The crown return portion extends rearward from the upper perimeter of the striking face section. The sole section portion extends rearward from the lower perimeter of the striking face section. The crown end of the toe structural connector is connected to the crown return portion. The crown end of the heel structural connector is connected to the crown return portion. The sole end of the toe structural connector is connected to the sole section. The sole end of the heel structural connector is connected to the sole section. A contact surface area between the crown return portion and both of the crown end of the toe structural connector and the crown end of the heel structural connector ranges from 1% to 5% of the surface area of the crown return portion. The toe structural connector and the heel structural connector attenuate movement of the crown return portion and the sole section when the striking face section impacts a golf ball.
- In some embodiments, each of the structural connectors comprises a structure selected from the group consisting of a solid rod and a hollow tube. In another, further embodiment, each of the structural connectors is a solid rod composed of a metal material selected from the group consisting of titanium alloy and steel. In an alternative embodiment, each of the structural connectors is located no more than 0.25 inch from the rear face surface along the vertical plane extending through the face center perpendicular to the striking face section.
- Another aspect of the current invention is golf club head comprising a metal body comprising a striking face section, a sole section extending from a lower edge of the striking face section, and a return section extending from an upper edge of the striking face section, the return section and sole section defining an upper opening, and the striking face section, sole section, and return section defining a hollow body interior, and first and second structural connectors disposed within the hollow body interior and extending from the return section to the sole section, wherein each of the first and second structural connectors is a solid metal rod, wherein no portion of either the first or second structural connectors makes contact with the striking face section, wherein the golf club head satisfies the equation Vballnorm≧0.0356x+140.82, and wherein
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- In a further embodiment, the golf club head may comprise a crown insert that may be permanently affixed to the body to close the upper opening. In some embodiments, the crown insert may be composed of a carbon composite material, and each of the first and second stiffening members may be integrally cast with the body.
- Yet another aspect of the present invention is a golf club head comprising a metal body comprising a striking face section, a sole section extending from a lower edge of the striking face section, a return section extending from an upper edge of the striking face section, and an aft end opposite the striking face section, the return section and sole section defining an upper opening, and the striking face section, sole section, and return section defining a hollow body interior, first and second structural connectors disposed within the hollow body interior and extending from the return section to the sole section, and a carbon composite crown insert permanently affixed to the body to close the upper opening, wherein each of the first and second structural connectors is located closer to the striking face section than to the aft end within the hollow body interior, wherein the golf club head has a volume of 420 cubic centimeters to 470 cubic centimeters, wherein the golf club head satisfies the equation Vballnorm≧0.0356x+141.19, and wherein
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- In some embodiments, the first structural connector comprises an upper end proximate the return section and a lower end proximate the sole section, the upper end is spaced a first distance from the striking face section, and the lower end is spaced a second distance from the striking face section that is greater than the first distance. In a further embodiment, the first distance is 0.120 inch to 0.150 inch, and the second distance is 0.180 inch to 0.210 inch. In another embodiment, each of the first and second structural connectors has a length of 1.00 inch to 2.50 inches, the first structural connector extends approximately parallel with the second structural connector, and the first structural connector is spaced a distance of 0.75 inch to 1.50 inch from the second structural connector.
- Having briefly described the present invention, the above and further objects, features, and advantages thereof will be recognized by those skilled in the pertinent art from the following detailed description of the invention when taken in conjunction with the accompanying drawings.
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FIG. 1 is a top elevational view of the preferred embodiment of a golf club head with structural connectors. -
FIG. 2 is a sole elevational view of the golf club head shown inFIG. 1 . -
FIG. 3 is a cross-sectional view of the golf club head shown inFIG. 1 along lines 3-3. -
FIG. 3A is a cross-sectional view of the golf club head shown inFIG. 1 along lines 3-3 illustrating the surfaces of the structural connectors. -
FIG. 4 is a cross-sectional view of the golf club head shown inFIG. 3 along lines 4-4. -
FIG. 5 is a cross-sectional view of the golf club head shown inFIG. 3 along line 5-5. -
FIG. 5A is a cross-sectional view of the golf club head shown inFIG. 3 along line 5-5. -
FIG. 6 is a cross-sectional view of the golf club head shown inFIG. 3 along line 6-6. -
FIG. 7 is a top perspective view of the golf club head shown inFIG. 1 with its crown insert and sole cover piece removed. -
FIG. 8 is a sole perspective view of the embodiment shown inFIG. 7 . -
FIG. 9 is a flow chart describing how to calculate the normalized ball speed of a golf club head, including the embodiment shown inFIG. 1 . -
FIG. 10 is a top plan view of an exemplary calibration plate used to calculate normalized ball speed of a golf club head. -
FIG. 11 is a cross-sectional view of the calibration plate shown inFIG. 10 along lines 11-11. -
FIG. 12 is a graph showing the relationship between normalized ball speed (y-axis) and Characteristic Time (μs) (x-axis) of prior art golf club heads and the golf club head described herein. -
FIG. 13 is a cross-sectional view of a golf club head. -
FIG. 14 is a top plan view of a golf club head. -
FIG. 15 is a top perspective view of a golf club head. -
FIG. 16 is a bottom perspective view of a golf club head. -
FIG. 17 is an isolated internal view of a golf club head. -
FIG. 18 is an isolated internal view of an intersection of the structural connectors and a return section of a golf club head. -
FIG. 19 is a front elevation view of a golf club head with structural columns with a face removed to illustrate the interior of the golf club head. - A preferred embodiment of the
golf club head 10 with structural connectors is shown inFIGS. 1-8 . Thegolf club head 10 preferably includes abody 20 having astriking face section 30 with aface center 34, areturn section 32 extending rearwards away from anupper edge 31 of thestriking face section 30,sole section 22 extending rearwards away from alower edge 33 of thestriking face section 30, ahosel 24 for engaging a shaft, aheel end 23, atoe end 25, anupper opening 26, ahollow interior 27, and anaft end 28. Acrown section 40 is comprised of thereturn section 32 and acrown insert 42 that is placed over theupper opening 26 to enclose thehollow interior 27. Thebody 20 also includes threecutouts center area 21 of thesole section 22, which are closed by acover piece 80 having a density that is lower than the density of the material used to make thebody 20. Each of thecrown section 40 and coverpiece 80 preferably is composed of a carbon composite material, while thebody 20 is composed of a metal material such as titanium alloy or steel. - Within the
hollow interior 27, twostructural connectors sole section 22 upward to thereturn section 32 approximately parallel with therear surface 36 of thestriking face section 30 and with each other. In an alternative embodiment, thestructural connectors crown insert 42 instead; what is important is that thestructural connectors crown section 40 to thesole section 22 proximate thestriking face section 30, without making contact with any portion of thestriking face section 30, even when thestriking face section 30 impacts a golf ball. Thestructural connectors striking face section 30 than to theaft end 28 of thebody 20. - As shown in
FIG. 3 , the preferred embodiment has twostructural connectors structural connectors golf club head 10 may include both the solid rod and hollow types ofstructural connectors 50. Thestructural connectors body 20 using a wax molding process, though in alternative embodiments may be added after thebody 20 is manufactured and secured to thebody 20 via welding, brazing, solder, or adhesive, and/or mechanically. - In the preferred embodiment, each of the
structural connectors structural connectors rear surface 36 of thestriking face section 30 measured along avertical plane 60 extending through theface center 34 perpendicular to thestriking face section 30. No portion of anystructural connectors structural connector rear surface 36 of thestriking face section 30. In the preferred embodiment, the structural connectors are spaced 0.136 inch to 0.210 inch from therear surface 36, with theupper end structural connector rear surface 36 than the spacing D2 of thelower end structural connectors structural connectors - Normalized ball speed removes the variable effect of a golf club head's mass and loft, and the construction of a particular golf ball, from testing the speed of a golf ball upon impact with any given golf club head, including the
golf club head 10 of the present invention; in other words, it allows an apples-to-apples comparison of golf club head performance. Normalized ball speed can be determined for a golf club head using the following steps, which are also outlined in the flow chart ofFIG. 9 . - First, provide a titanium 6-4
calibration plate 90 with a mass of approximately 190 grams, a diameter D4 of approximately 4 inches, a minimum thickness T1 of approximately 0.100-0.150 inch, and a maximum thickness T2 of approximately 0.200-0.400 inch, as shown inFIGS. 10 and 11 , and strike thecenter 92 of the calibration plate with a test golf ball moving at approximately 109 mph (step 100). Measure the return velocity Vbr of the ball (step 110). Then, strike the same test golf ball, again traveling at approximately 109 mph, with thecenter 34 of thestriking face section 30 of thegolf club head 10 being assessed (step 120), and measure the rebound velocity Vcr of the test golf ball (step 130). Next, measure and record the mass of the plate mp, golf ball mb, golf club head 10 mc, measured head test ball in velocity (109 mph target) Vcin, measured plate test ball in velocity (109 mph target) Vbin, measured head test ball return velocity Vcr, and measured plate test ball return velocity Vbr (step 140). Finally, calculate the normalized ball speed (Vballnorm) using the following equation (step 150): -
- In this equation, Vinh is 100 and mh is 200.
- The
golf club head 10 of the present invention has a Vballnorm≧0.0356x+140.82, and more preferably a Vballnorm≧0.0356x+141.19. The positioning of thestructural connectors golf club head 10 to satisfy this equation; as shown inFIG. 12 , prior art golf club heads, which do not include the structural connector structure, fall well short of this performance metric. - In addition to optimizing the normalized ball speed of the
golf club head 10, locating thestiffening members golf club head 10 defined above has the greatest stress-reducing effect on thegolf club head 10. If any of thestructural connectors rear surface 36 of thestriking face section 30, they will not have a noticeable effect on the stress placed on thestriking face section 30 when thegolf club head 10 is in use, and will use discretionary mass without providing a significant performance benefit. -
FIGS. 13-19 illustrate thecontact surface area return section 32 of thebody 20 of thegolf club head 10. Thecast metal body 20 preferably comprises a toestructural connector 52, a heelstructural connector 50, astriking face section 30, acrown return portion 32 and asole section 22. - In one embodiment, shown in
FIGS. 3A and 19 , the toestructural connector 52 comprises a body with acrown end 52 a, asole end 52 b, aforward surface 52 c (shown inFIG. 19 ), arearward surface 52 d, aheel surface 52 f and a toe surface 52 e. The heelstructural connector 50 comprises a body with acrown end 50 a, asole end 50 b, aforward surface 50 c (shown inFIG. 19 ), a rearward surface 50 d, a heel surface 50 f and a toe surface 50 e. In this embodiment, each of the heelstructural connector 50 and the toestructural connector 52 has a radius of curvature preferably ranging from 0.02 inch to 0.1 inch, more preferably from 0.025 inch to 0.05 inch, and most preferably 0.0395 inch. Thestriking face section 30 has an exterior surface 30 a, aninterior surface 36, anupper perimeter 31 and alower perimeter 33. Thecrown return portion 32 extends rearward from theupper perimeter 31 of thestriking face section 30 preferably approximately 0.5 inch to 1.5 inches, more preferably 0.6 inch to 1.0 inch, and most preferably approximately 0.725 inch. Thesole section 22 portion extends rearward from thelower perimeter 33 of thestriking face section 30. Thecrown end 52 a of the toestructural connector 52 is connected to thecrown return portion 32. Thecrown end 50 a of the heelstructural connector 50 is connected to thecrown return portion 32. Thesole end 52 b of the toestructural connector 52 is connected to thesole section 22. Thesole end 50 a of the heelstructural connector 50 is connected to thesole section 22. - A
contact surface area crown return portion 32 and both of the crown end 52 a of the toestructural connector 52 and the crown end 50 a of the heelstructural connector 50 a ranges from 1% to 5% of the surface area of thecrown return portion 32. The surface area of the crown return portion ranges from 2.5 square inches to 4.0 square inches. Thecontact surface area 55 a between thecrown return portion 32 and the crown end 52 a of the toestructural connector 52 preferably ranges from 0.02 square inches to 0.1 square inch, more preferably from 0.035 square inch to 0.075 square inch, and most preferably is 0.045 square inch. As shown inFIG. 18 , thecontact surface area 55 b between thecrown return portion 32 and the crown end 50 a of the heelstructural connector 50 preferably ranges from 0.02 square inches to 0.1 square inch, more preferably from 0.035 square inch to 0.075 square inch, and most preferably is 0.045 square inch. As shown inFIG. 17 , thecontact surface area 57 a between thesole section 22 and thesole end 52 b of the toestructural connector 52 preferably ranges from 0.015 square inches to 0.1 square inch, more preferably from 0.025 square inch to 0.05 square inch, and most preferably is 0.03 square inch. Thecontact surface area 57 b between thesole section 22 and thesole end 50 b of the heelstructural connector 50 preferably ranges from 0.015 square inches to 0.1 square inch, more preferably from 0.025 square inch to 0.05 square inch, and most preferably is 0.03 square inch. - The toe
structural connector 52 and the heelstructural connector 50 preferably attenuate movement of thecrown return portion 32 and thesole section 22 when thestriking face section 30 impacts a golf ball. - The toe
structural connector 52 and the heelstructural connector 50 each preferably have a length from thesole end FIG. 3A , theheel surface 52 f of the toestructural connector 52 is a distance ranging from 0.75 inch to 1.5 inches from the toe surface 50 e of the heelstructural connector 50. Acontact area crown return portion 32 and each of the toestructural connector 52 and the heelstructural connector 50 preferably ranges from 0.02 square inches to 0.04 square inches. - As shown in
FIG. 5A , theforward surface structural connector 52 and the heelstructural connector 50 is at least 0.120 inch rearward from theinterior surface 36 of thestriking face section 30 and therearward surface 50 d, 52 d of each of the toestructural connector 52 and the heelstructural connector 50 is no more than 1.0 inch rearward from theinterior surface 36 of thestriking face section 30. - When the
golf club head 10 is designed as a driver, it preferably has a volume from 200 cubic centimeters to 600 cubic centimeters, more preferably from 300 cubic centimeters to 500 cubic centimeters, and most preferably from 420 cubic centimeters to 470 cubic centimeters, with a most preferred volume of 460 cubic centimeters. In the preferred embodiment, thegolf club head 10 has a volume of approximately 450 cc to 460 cc. - The volume of the
golf club head 10 also varies between fairway woods (preferably ranging from 3-woods to eleven woods) with smaller volumes than drivers. When designed as a driver, thegolf club head 10 preferably has a mass of no more than 215 grams, and most preferably a mass of 180 to 215 grams; when designed as a fairway wood, thegolf club head 10 preferably has a mass of 135 grams to 200 grams, and preferably from 140 grams to 165 grams. - In each of the embodiments disclosed herein, the
striking face section 30 preferably has a varying thickness such as that described in U.S. Pat. No. 7,448,960, for a Golf Club Head With Variable Face Thickness, which pertinent parts are hereby incorporated by reference. Other alternative embodiments of the thickness of thestriking face section 30 are disclosed in U.S. Pat. No. 6,398,666, for a Golf Club Striking Plate With Variable Thickness, U.S. Pat. No. 6,471,603, for a Contoured Golf Club Face and U.S. Pat. No. 6,368,234, for a Golf Club Striking Plate Having Elliptical Regions Of Thickness, all of which are owned by Callaway Golf Company and which pertinent parts are hereby incorporated by reference. Alternatively, thestriking face section 30 may have a uniform thickness. - In each of the embodiments disclosed herein, the
body 20 is preferably cast from molten metal in a method such as the well-known lost-wax casting method. The metal for casting is preferably titanium or a titanium alloy such as 6-4 titanium alloy, alpha-beta titanium alloy or beta titanium alloy for forging, and 6-4 titanium for casting. Alternatively, thebody 20 is composed of 17-4 steel alloy. Additional methods for manufacturing thebody 20 include forming thebody 20 from a flat sheet of metal, super-plastic forming the body from a flat sheet of metal, machining thebody 20 from a solid block of metal, electrochemical milling thebody 20 from a forged pre-form, casting the body using centrifugal casting, casting thebody 20 using levitation casting, and like manufacturing methods. - In other embodiments, the
golf club head 10 may have a multi-material composition such as any of those disclosed in U.S. Pat. Nos. 6,244,976, 6,332,847, 6,386,990, 6,406,378, 6,440,008, 6,471,604, 6,491,592, 6,527,650, 6,565,452, 6,575,845, 6,478,692, 6,582,323, 6,508,978, 6,592,466, 6,602,149, 6,607,452, 6,612,398, 6,663,504, 6,669,578, 6,739,982, 6,758,763, 6,860,824, 6,994,637, 7,025,692, 7,070,517, 7,112,148, 7,118,493, 7,121,957, 7,125,344, 7,128,661, 7,163,470, 7,226,366, 7,252,600, 7,258,631, 7,314,418, 7,320,646, 7,387,577, 7,396,296, 7,402,112, 7,407,448, 7,413,520, 7,431,667, 7,438,647, 7,455,598, 7,476,161, 7,491,134, 7,497,787, 7,549,935, 7,578,751, 7,717,807, 7,749,096, and 7,749,097, the disclosure of each of which is hereby incorporated in its entirety herein. - From the foregoing it is believed that those skilled in the pertinent art will recognize the meritorious advancement of this invention and will readily understand that while the present invention has been described in association with a preferred embodiment thereof, and other embodiments illustrated in the accompanying drawings, numerous changes, modifications and substitutions of equivalents may be made therein without departing from the spirit and scope of this invention which is intended to be unlimited by the foregoing except as may appear in the following appended claims. Therefore, the embodiments of the invention in which an exclusive property or privilege is claimed are defined in the following appended claims.
Claims (20)
Priority Applications (16)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US15/447,638 US9687702B1 (en) | 2012-06-27 | 2017-03-02 | Golf club head with structural columns |
US15/627,217 US9827469B1 (en) | 2012-06-27 | 2017-06-19 | Iron-type golf club head with elevated weight bar and stress-relieving structures |
US15/628,514 US9908017B2 (en) | 2012-06-27 | 2017-06-20 | Golf club head with structural columns |
US15/628,100 US9855476B2 (en) | 2012-06-27 | 2017-06-20 | Golf club head with structural columns |
US15/628,364 US9987527B1 (en) | 2012-06-27 | 2017-06-20 | Iron-type golf club head with stiffening rods |
US15/808,025 US9931550B1 (en) | 2012-06-27 | 2017-11-09 | Method of manufacturing golf club head having stress-reducing features |
US15/817,158 US10010771B2 (en) | 2012-06-27 | 2017-11-17 | Iron-type golf club head with elevated weight bar and stress-relieving structures |
US15/912,247 US10335647B2 (en) | 2012-06-27 | 2018-03-05 | Method of manufacturing golf club head having stress-reducing features |
US16/411,491 US10532258B2 (en) | 2015-06-30 | 2019-05-14 | Golf club head having stress-reducing features |
US16/742,743 US11083937B2 (en) | 2015-06-30 | 2020-01-14 | Method of manufacturing golf club head having stress-reducing features |
US17/375,180 US11433281B2 (en) | 2017-01-05 | 2021-07-14 | Method of manufacturing golf club head having stress-reducing features |
US17/396,971 US11433282B2 (en) | 2015-06-30 | 2021-08-09 | Method of manufacturing golf club head having stress-reducing features |
US17/873,775 US11612790B2 (en) | 2017-01-05 | 2022-07-26 | Method of manufacturing golf club head having stress-reducing features |
US17/903,868 US11806587B2 (en) | 2015-06-30 | 2022-09-06 | Method of manufacturing golf club head having stress-reducing features |
US18/125,892 US20230233910A1 (en) | 2017-01-05 | 2023-03-24 | Method of Manufacturing Golf Club Head Having Stress-Reducing Features |
US18/387,607 US20240075354A1 (en) | 2015-06-30 | 2023-11-07 | Method of Manufacturing Golf Club Head Having Stress-Reducing Features |
Applications Claiming Priority (15)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201261665203P | 2012-06-27 | 2012-06-27 | |
US201261684079P | 2012-08-16 | 2012-08-16 | |
US13/788,173 US8926448B1 (en) | 2012-04-19 | 2013-03-07 | Weighted golf club head |
US201313797404A | 2013-03-12 | 2013-03-12 | |
US14/039,102 US8834294B1 (en) | 2012-06-08 | 2013-09-27 | Golf club head with center of gravity adjustability |
US201361898956P | 2013-11-01 | 2013-11-01 | |
US14/173,615 US9180349B1 (en) | 2012-06-08 | 2014-02-05 | Golf club head with adjustable center of gravity |
US14/285,479 US9211451B1 (en) | 2012-04-19 | 2014-05-22 | Weighted golf club head |
US14/498,843 US9259627B1 (en) | 2012-06-08 | 2014-09-26 | Golf club head with adjustable center of gravity |
US14/755,068 US9623302B1 (en) | 2012-06-08 | 2015-06-30 | Golf club head with adjustable center of gravity |
US14/788,326 US9597558B1 (en) | 2015-06-30 | 2015-06-30 | Golf club head having composite tubes |
US14/794,578 US9814947B1 (en) | 2012-06-27 | 2015-07-08 | Golf club head having composite tubes |
US14/847,227 US9486677B1 (en) | 2013-03-07 | 2015-09-08 | Weighted golf club head having composite tubes |
US15/279,188 US9687701B1 (en) | 2012-06-27 | 2016-09-28 | Weighted golf club head having stress-relieving tubes |
US15/447,638 US9687702B1 (en) | 2012-06-27 | 2017-03-02 | Golf club head with structural columns |
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US15/446,754 Continuation US9694257B1 (en) | 2012-06-27 | 2017-03-01 | Golf club head with structural columns |
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US15/628,364 Continuation-In-Part US9987527B1 (en) | 2012-06-27 | 2017-06-20 | Iron-type golf club head with stiffening rods |
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US9855476B2 (en) | 2018-01-02 |
US9687702B1 (en) | 2017-06-27 |
US20170282023A1 (en) | 2017-10-05 |
US9908017B2 (en) | 2018-03-06 |
US20170282022A1 (en) | 2017-10-05 |
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