US20040038749A1 - Golf putter with polished tungsten insert - Google Patents

Golf putter with polished tungsten insert Download PDF

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Publication number
US20040038749A1
US20040038749A1 US10/223,771 US22377102A US2004038749A1 US 20040038749 A1 US20040038749 A1 US 20040038749A1 US 22377102 A US22377102 A US 22377102A US 2004038749 A1 US2004038749 A1 US 2004038749A1
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United States
Prior art keywords
club head
insert
golf club
comprised
golf
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
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US10/223,771
Inventor
Richard De La Cruz
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Individual
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Individual
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Publication date
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Priority to US10/223,771 priority Critical patent/US20040038749A1/en
Publication of US20040038749A1 publication Critical patent/US20040038749A1/en
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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
    • A63B53/0487—Heads for putters
    • 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
    • A63B53/0441—Heads with visual indicators for aligning the golf club
    • 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
    • A63B60/02—Ballast means for adjusting the centre of mass
    • 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
    • A63B2053/0491—Heads with added weights, e.g. changeable, replaceable
    • 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
    • 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
    • A63B53/0416—Heads having an impact surface provided by a face insert
    • 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
    • A63B53/0416—Heads having an impact surface provided by a face insert
    • A63B53/042—Heads having an impact surface provided by a face insert the face insert consisting of a material different from that of the head

Definitions

  • This invention relates to golf putter heads possessing an insert in the ball-striking face constructed of a material different than the material comprising the putter head itself.
  • U.S. Pat. No. 5,931,743 that teaches a thermoplastic polyurethane insert
  • U.S. Pat. No. 5,485,997 that teaches a putter face plate made of non-metallic materials to increase the “sweet spot”
  • U.S. Pat. No. 5,575,472 for a putter with a recess in the face into which is inserted or cast a resin, which hardens and is later polished.
  • U.S. Pat. No. 6,273,831 also teaches a club head with a thermoset polyurethane material insert.
  • the present invention is light-weight metal golf putter head in which is placed a heavy metal insert, cast to fit into a recess in the club striking face.
  • the invention is a new combination of metals to put the majority of the head weight behind the ball and still meet the weight and size constraints imposed by the rules of golf.
  • the hitting surface of the club face insert is polished to a mirror finish to improve the contact characteristics of the club with the ball and to present a distinctive and improved appearance.
  • metallic tungsten is used to form the insert, which insert is so shaped as to present a perfectly flush surface with the surrounding strike face.
  • the putter head other than the insert is titanium, in the preferred embodiment
  • FIG. 1 is a perspective view of the golf putter.
  • FIG. 2 is a face side view of the golf putter.
  • FIG. 3 is a back side view of the golf putter.
  • FIG. 4 is a perspective view of the golf putter.
  • FIG. 5 is an exploded view of the putter from the face.
  • FIG. 6 is a detailed view of the hosel shaft of the golf putter.
  • FIG. 6A is a cross-section of the hosel.
  • the present invention is an improved golf club head design, with a metallic golf club head and a metallic insert in the striking face.
  • the invention has a hosel 102 which is part of a one-piece golf club head 100 .
  • the golf club head 100 is shown connected via the hosel 102 to a portion of the golf club shaft 101 , which is not part of this invention.
  • the hosel 102 has a rectangular cross section 103a , 103b as shown in FIG. 6 and FIG. 6A.
  • the rectangular cross section 103a , 103b can be square in shape, with dimension 103 a equal to 103 b , or rectangular with unequal dimensions.
  • the golf club head 100 is made of cast or forged titanium metal.
  • the golf club head 100 has a heel 104 near the hosel 102 end of the golf club head 100 , and a toe 105 at the end of the golf club head 100 away from the hosel 102 .
  • the golf club strike face 106 is the flat portion of the golf club head 100 running from toe 105 to heel 104 .
  • the golf club strike face 106 has an insert 107 at the center of gravity of the golf club head.
  • the insert 107 is held in a recess 108 machined into the golf club strike face 106 .
  • the insert 107 is held in place by any of several methods that will hold the insert in the recess. In the preferred embodiment, the insert is glued into the recess with an acrylic adhesive.
  • the insert 107 and recess 108 are roughly oval in shape and the insert 107 is made of cast or forged tungsten metal alloy.
  • the strike face surface 109 of the insert is polished to mirror reflectivity. In the preferred embodiment of the invention, the polishing is done by the diamond lap method.
  • the golf club head 100 possesses a back face that is shaped as shown in FIGS. 1, 3, and 4 .
  • the back face has a ledge weight portion 110 that is part of the single-piece golf club head 100 .
  • the ledge weight portion 110 runs from the heel 104 to the toe 105 of the golf club head 100 .
  • the polished tungsten insert 107 possesses high density while simultaneously being able to take a mirror-bright polish.
  • the tungsten insert 107 is made of carburized tungsten. The combination of a dense metal insert 107 in the area directly behind the golf club strike face 106 at its center of gravity and the light weight of the titanium golf club head 100 permits a new club design that concentrates the majority of the weight of the club head directly behind the ball-striking surface of the club.
  • the golf club head is a putter head.

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  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Golf Clubs (AREA)

Abstract

An improved golf club design is proposed wherein a light-weight alloy club head is combined with a dense club face insert to concentrate the club head weight behind the ball-striking surface. The insert is polished to a mirror finish to improve the clubs ball-striking capabilities and impart a unique appearance.

Description

    FIELD OF THE INVENTION
  • This invention relates to golf putter heads possessing an insert in the ball-striking face constructed of a material different than the material comprising the putter head itself. [0001]
    • BACKGROUND OF THE INVENTION
  • Golf club heads with inserts are an old field of invention, some club inventions dating to the 1880's and earlier. The recent golf putter head designs using inserts in the club's striking face have attempted to accomplish two separate goals: change the location of the center of mass or center of inertia of the club head and change the rebound characteristics of the club face when the ball strikes the club. [0002]
  • The Rules of Golf are interpreted in the present day to require that any putter face insert have a constant, uniform thickness of ⅛ inch or more, have a Shore A hardness of greater than 85%, and not absorb the ball's energy and then give it back (act as a spring). [0003]
  • Some example patents are U.S. Pat. No. 5,931,743 that teaches a thermoplastic polyurethane insert, U.S. Pat. No. 5,485,997 that teaches a putter face plate made of non-metallic materials to increase the “sweet spot”, and U.S. Pat. No. 5,575,472 for a putter with a recess in the face into which is inserted or cast a resin, which hardens and is later polished. U.S. Pat. No. 6,273,831 also teaches a club head with a thermoset polyurethane material insert. [0004]
    • SUMMARY OF THE INVENTION
  • The present invention is light-weight metal golf putter head in which is placed a heavy metal insert, cast to fit into a recess in the club striking face. The invention is a new combination of metals to put the majority of the head weight behind the ball and still meet the weight and size constraints imposed by the rules of golf. [0005]
  • The hitting surface of the club face insert is polished to a mirror finish to improve the contact characteristics of the club with the ball and to present a distinctive and improved appearance. In the preferred embodiment metallic tungsten is used to form the insert, which insert is so shaped as to present a perfectly flush surface with the surrounding strike face. The putter head other than the insert is titanium, in the preferred embodiment [0006]
    • DESCRIPTION OF THE DRAWINGS
  • FIG. 1 is a perspective view of the golf putter. [0007]
  • FIG. 2 is a face side view of the golf putter. [0008]
  • FIG. 3 is a back side view of the golf putter. [0009]
  • FIG. 4 is a perspective view of the golf putter. [0010]
  • FIG. 5 is an exploded view of the putter from the face. [0011]
  • FIG. 6 is a detailed view of the hosel shaft of the golf putter. [0012]
  • FIG. 6A is a cross-section of the hosel. [0013]
    • DETAILED DESCRIPTION OF THE INVENTION
  • The present invention is an improved golf club head design, with a metallic golf club head and a metallic insert in the striking face. Referring to FIG. 2, the invention has a hosel[0014] 102 which is part of a one-piece golf club head100. The golf club head100 is shown connected via the hosel102 to a portion of the golf club shaft101, which is not part of this invention.
  • The hosel[0015] 102 has a rectangular cross section103a,103b as shown in FIG. 6 and FIG. 6A. The rectangular cross section 103a,103b can be square in shape, with dimension 103 a equal to 103 b, or rectangular with unequal dimensions. In the preferred embodiment, the golf club head100 is made of cast or forged titanium metal.
  • As seen in FIG. 2, the golf club head[0016] 100 has a heel104 near the hosel102 end of the golf club head100, and a toe105 at the end of the golf club head100 away from the hosel102. The golf club strike face106 is the flat portion of the golf club head100 running from toe105 to heel104. As shown in FIGS. 2 and 5, the golf club strike face106 has an insert107 at the center of gravity of the golf club head. The insert107 is held in a recess108 machined into the golf club strike face106. The insert107 is held in place by any of several methods that will hold the insert in the recess. In the preferred embodiment, the insert is glued into the recess with an acrylic adhesive.
  • In the preferred embodiment, the insert[0017] 107 and recess108 are roughly oval in shape and the insert107 is made of cast or forged tungsten metal alloy. The strike face surface109 of the insert is polished to mirror reflectivity. In the preferred embodiment of the invention, the polishing is done by the diamond lap method. The golf club head100 possesses a back face that is shaped as shown in FIGS. 1, 3, and 4. The back face has a ledge weight portion110 that is part of the single-piece golf club head100. The ledge weight portion110 runs from the heel104 to the toe105 of the golf club head100.
  • In the preferred embodiment, the polished tungsten insert[0018] 107 possesses high density while simultaneously being able to take a mirror-bright polish. In the preferred embodiment, the tungsten insert107 is made of carburized tungsten. The combination of a dense metal insert107 in the area directly behind the golf club strike face106 at its center of gravity and the light weight of the titanium golf club head100 permits a new club design that concentrates the majority of the weight of the club head directly behind the ball-striking surface of the club.
  • In the preferred embodiment of this invention, the golf club head is a putter head. [0019]
  • While the present invention has been described above and a preferred embodiment of the invention has been identified, changes and substitutions of equivalent features can be made without departing from this invention. Those skilled in the art of golf club design will recognize that many variations of this described embodiment of the invention can be resorted to without leaving the boundaries of this specification and associated claims below. [0020]

Claims (8)

What is claimed for this invention is:
1. A golf club head comprising
a club head body having a striking face, the striking face having a recess within it,
the club head body comprised of a relatively light-weight material,
the recess having an insert disposed within it, the insert comprised of a relatively dense material, the insert held fixedly in place in the recess,
the material comprising the insert capable of taking a mirror-bright polish.
2. The golf club head according to claim 1 where the club head body is comprised of a titanium alloy.
3. The golf club head of claim 1 where the insert is comprised of a carburized tungsten alloy.
4. The golf club head of claim 1 where the method of imparting a mirror-bright polish to said insert is the diamond lap method.
5. The golf club head of claim 1 where the golf club head is a putter head.
6. The golf club head according to claim 5 where the club head body is comprised of a titanium alloy.
7. The golf club head of claim 5 where the insert is comprised of a tungsten alloy.
8. The golf club head of claim 5 where the method of imparting a mirror-bright polish to said insert is the diamond lap method.
US10/223,771 2002-08-20 2002-08-20 Golf putter with polished tungsten insert Abandoned US20040038749A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US10/223,771 US20040038749A1 (en) 2002-08-20 2002-08-20 Golf putter with polished tungsten insert

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10/223,771 US20040038749A1 (en) 2002-08-20 2002-08-20 Golf putter with polished tungsten insert

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050215346A1 (en) * 2004-03-26 2005-09-29 Bridgestone Sports Co., Ltd. Putter
US20080182680A1 (en) * 2007-01-26 2008-07-31 Richard De La Cruz Golf club with carburized tungsten face insert
US7794333B2 (en) 2008-02-21 2010-09-14 Sri Sports Limited Strike face insert
JP2016019664A (en) * 2014-07-15 2016-02-04 基宏 蘇 Forging method for connecting tungsten steel weight member to golf club head

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5131656A (en) * 1991-09-16 1992-07-21 Frank Kinoshita Impulse performance putter
US5816930A (en) * 1997-02-26 1998-10-06 Brown; Jon R. Golf putter head

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5131656A (en) * 1991-09-16 1992-07-21 Frank Kinoshita Impulse performance putter
US5816930A (en) * 1997-02-26 1998-10-06 Brown; Jon R. Golf putter head

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050215346A1 (en) * 2004-03-26 2005-09-29 Bridgestone Sports Co., Ltd. Putter
US7281987B2 (en) * 2004-03-26 2007-10-16 Bridgestone Corporation Putter
US20080182680A1 (en) * 2007-01-26 2008-07-31 Richard De La Cruz Golf club with carburized tungsten face insert
US7794333B2 (en) 2008-02-21 2010-09-14 Sri Sports Limited Strike face insert
US20100292026A1 (en) * 2008-02-21 2010-11-18 Sri Sports Limited Strike Face Insert
US7942757B2 (en) 2008-02-21 2011-05-17 Sri Sports Limited Strike face insert
US8105181B2 (en) 2008-02-21 2012-01-31 Sri Sports Limited Strike face insert
JP2016019664A (en) * 2014-07-15 2016-02-04 基宏 蘇 Forging method for connecting tungsten steel weight member to golf club head

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