US2486952A - Golf club head - Google Patents

Golf club head Download PDF

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Publication number
US2486952A
US2486952A US568955A US56895544A US2486952A US 2486952 A US2486952 A US 2486952A US 568955 A US568955 A US 568955A US 56895544 A US56895544 A US 56895544A US 2486952 A US2486952 A US 2486952A
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US
United States
Prior art keywords
head
golf club
club
club head
nylon
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.)
Expired - Lifetime
Application number
US568955A
Inventor
Edward P Kearsley
Emil J Marciniak
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AG SPALDING AND BROS Inc
Original Assignee
AG SPALDING AND BROS Inc
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Application filed by AG SPALDING AND BROS Inc filed Critical AG SPALDING AND BROS Inc
Priority to US568955A priority Critical patent/US2486952A/en
Application granted granted Critical
Publication of US2486952A publication Critical patent/US2486952A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B53/00Golf clubs
    • A63B53/04Heads
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B53/00Golf clubs
    • A63B53/04Heads
    • A63B53/0466Heads wood-type
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B53/00Golf clubs
    • A63B53/04Heads
    • A63B2053/0433Heads with special sole configurations
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B60/00Details or accessories of golf clubs, bats, rackets or the like
    • A63B2060/004Details or accessories of golf clubs, bats, rackets or the like striking surfaces coated with high-friction abrasive material
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S273/00Amusement devices: games
    • Y10S273/06Nylon

Description

Nov. 1, 1949 E. P. KEARSLEY ETAL GOLF CLUB HEAD Filed Dec. 20, 1944 F7111! Jill/1701M d .1124

INVENTORS BY la a/ Wfm ATTORNEYS V Patented-Nov. l, 1949 UNITED STATES PATENT I OFFICE com onus mean Edward P. Kcarsley, Springfield, and Emil-I. Marciniak, Easthampton, Masa, aosignoro to A. G. Spalding & Bros. Inc., Chico a corporation. of Delaware pee, Mala,

Application December 20, 1944, serial No. 588.955

4 Claims. (cl. era-1'1) successful because the heads did notpossess the feel and sound of wood and disclosed properties,

' when in use, which rendered the clubs unsatisfactory. Some of these properties were failure and breakage under repeated blows caused during the use of the club for its intended purpose, inability of the club to maintain its resiliency so that on a hot day it would become soft and loggy while on a cold day it wouldbe very brittle, beingtoo heavy so that they had to be bored out to such an extent to bring them down to the desired weight that they were unsuitable for use, and producing a high-pitched unnatural sound when striking a golf ball.

We have discovered that a golf club head of molded nylon overcomes these difficulties and produces a head which has a satisfactory appearance, feel and a sound on impact, of a slightly higher pitch than that ofa wooden club and which stands up satisfactorily under use particularly in the thin sections thereof.

Other features and advantages of the invention will become apparent from the specification and claims when considered in connection with the drawings in which:

Figure 1 is a perspective view of the club head.

Fig. 2 is a bottom view of the club head with the sole plate removed.

Fig. 3 is a section of the head taken along the' line 3-3 of Fig. 2.

shaft receiving neck It and a striking face I 2 which is scored longitudinally and transversely at 03 as is usual in wooden golf clubs of this character. The bottom of the head may be provided with a recess M as shown in Fig. 2 in which is mounted a sole plate L; which usually is formed of metal.

The head is preferably formed of polyamides of adipic acid and hexamethylene diamine or nylon, manufactured and sold by E. I. Du Pont de Nemours & Company of Wilmington, Delaware. The formula of polyamides of adipic acid and hexamethylene diamin'e is:

it may be molded to substantially its final form by injection molding or other suitable molding processes. The-head can be molded directly on the shaft IE, or the head formed separately with the neck having a shaft receiving bore l1 into which the shaft is inserted and secured by suitable adhesive or cement and additionally by means of a screw I 8. If the shaft is to be readily removable, a sleeve, not shown, can be molded within the bore l1 and be provided with means to which the shaft may be readily detachably connected.

. The material of the head has dimensional stability during the molding operation. Very little machining is required to finish the heads and this may be done readily as the material of the head can be machined without excessive strains being set up therein due to heating up of the material.

Nylon has a specific gravity slightly greater than that of wood so that a head of normal size requires but a minimum amount of coring to produce substantially the same weight as that or an average wooden club. The coring maybe done during the molding of the head or by a cutting or drilling operation after tne head has been molded. As is shown in Figs. 3 and 4, the coring results in a small cavity is. This cavity conveniently may receive the usual required weight means 20 which is secured in place by screw 2|.

It has been found that heads made of nylon,

and particularly thin sections thereof, such as are found around the neck and, in sections formed as a result of the above-mentioned coring oi the head, have excellent resistance to impact fatigue and do not require reinforcement; By impact fatigue is meant the failure of a head to stand up under successive blows as would be encountered in the use of a golf club, and to show cracking in the faceand fracture and breakage in the thin sections. 7

We have discovered this property in nylon and so far as we have been able todetermine, it bears no direct relation to the known characteristics 'of plastic materials such as impact strength,

tensile strength, compression, elongation, and modulus of elasticity. etc.

Because of this characteristic, heads made 0 nylon can be more readily and cheaply manufactured than prior heads since they do not have to have any reinforcements molded in them or special means for providing a reinforced mounting for the shaft thereto.

The head of the present invention is very hard, abrasive resistant, and has the advantage that the striking face does not become dented through impact with the ball and the scoring thereon does not breakdown as in the case of a wooden club which must be completely refaced when this occurs.

Since the head is very hard, the sole plate may or other means. However, in view of the fact that the sole plates receive the greatest wear and must be frequently removed for replacement or repair by unscrewing the screws, it is preferred to mold anchoring members in the head to which the screws or other securing means may be connected. The anchoring means are preferably metal sleeves 22 opening into the sole plate recess and into' which the screws 23 may be threaded.

The club head of the present invention has an excellent appearance particularly because the material of the head takes a high polish. It has an advantage over wooden heads however in that it has a high resistance to abrasion. When scratches do occur, they may be covered up by a coat of wax or the like whereas a wooden head would require a complete new coat of varnish to take them out.

Furthermore. the material of the head maintains its resiliency throughout the range of usual climatic temperature so that the club does not become soft and loggy on hot days and brittle. on cold days. 7

When any golf ball is struck with a wooden club by a player, there is a definite feel and there is Variations and modifications may be made within the scope of this invention and portions of the improvements may be used without others.

We claim:

1. In a golf club of the "wood type, a head of molded nylon, said head having thin walled sections.

2. In a golf club of the "wood type, a head of molded nylon, said head having a thin walled shaft-receiving neck.

3. In a golf club of the "wood" type, a head of molded nylon, said head having a recess therein forming unreinforced walls of thin cross-section.

'4. A golf club head of the wood type of molded nylon, said head having thin walled sections having great resistance to impact fatigue.

EDWARD P. KEARSLEY. Elm; J. MARCINIAK.

REFERENCES CITED The following references are of record in the I file of this patent:

produced a characteristic click or sound which ing a golf ball is so slightly higher in pitch than when the ball is struck by a wooden club that theplayer is not conscious of it during play.

UNITED STATES PATENTS 'Number Name 1 Date 745,044 Dunn Nov. 24, 1903 1,202,383 Hardman Oct. 24, 1916 1,841,062 Schavoir Jan. 12, 1932 1,864,513 Balch June 28, 1932 2,301,369 Carvill Nov. 10, 1942 2,309,729 Gordon Feb. 2, 1943 2,346,617 Schaffer Apr. 11, 1944

US568955A 1944-12-20 1944-12-20 Golf club head Expired - Lifetime US2486952A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US568955A US2486952A (en) 1944-12-20 1944-12-20 Golf club head

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Application Number Priority Date Filing Date Title
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Cited By (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2686056A (en) * 1948-03-11 1954-08-10 Plastic Golf Products Inc Molded plastic golf club head
US2701719A (en) * 1952-01-04 1955-02-08 Pierro Domenic Di Bowling pin
US2730159A (en) * 1951-01-17 1956-01-10 Goodrich Co B F Method of making golf balls
US2816765A (en) * 1954-01-04 1957-12-17 Harry C Stockfleth Weight-compensated arrowhead
US3233905A (en) * 1961-04-26 1966-02-08 Gen Electric Golf club striking surface of polycarbonate
US3430957A (en) * 1967-06-01 1969-03-04 Ernest R Andis Lockable golf club head adjustment
US3561760A (en) * 1967-03-17 1971-02-09 Hans Klay Hockey stick with flared upper and lower portions
US4326716A (en) * 1979-11-15 1982-04-27 Patentex, S.A Polyurethane golf club
US4534564A (en) * 1982-07-21 1985-08-13 Daiwa Golf Co., Ltd. Golf club head
US4667958A (en) * 1982-11-24 1987-05-26 Raitto David A Nightstick
US4872684A (en) * 1987-11-02 1989-10-10 Dippel Stephanie A Golf putter
US4964641A (en) * 1990-01-26 1990-10-23 Diversified Metal Incorporated Golf club with electrical discharge machined face
US5482281A (en) * 1995-02-17 1996-01-09 Karsten Mfg. Corp. Golf putter head
US6217459B1 (en) 1999-02-04 2001-04-17 Castlehawk, Llc Putter head assembly
US6306048B1 (en) 1999-01-22 2001-10-23 Acushnet Company Golf club head with weight adjustment
USD621460S1 (en) 2010-03-31 2010-08-10 Karsten Manufacturing Corporation Golf club head
USD621459S1 (en) 2010-03-31 2010-08-10 Karsten Manufacturing Corporation Golf club head
USD621461S1 (en) 2010-03-31 2010-08-10 Karsten Manufacturing Corporation Golf club head
USD621458S1 (en) 2010-03-31 2010-08-10 Karsten Manufacturing Corporation Golf club head
USD621462S1 (en) 2010-03-31 2010-08-10 Karsten Manufacturing Corporation Golf club head
USD621891S1 (en) 2010-03-31 2010-08-17 Karsten Manufacturing Corporation Golf club head
USD623709S1 (en) 2010-03-31 2010-09-14 Karsten Manufacturing Corporation Golf club head
USD629476S1 (en) 2010-06-14 2010-12-21 Karsten Manufacturing Corporation Golf club head
USD644703S1 (en) 2010-12-15 2011-09-06 Karsten Manufacturing Corporation Golf club head
USD650455S1 (en) 2011-01-10 2011-12-13 Karsten Manufacturing Corporation Golf club head
USD792536S1 (en) 2016-03-14 2017-07-18 Karsten Manufacturing Corporation Golf club head
USD796602S1 (en) 2016-06-08 2017-09-05 Karsten Manufacturing Corporation Golf club head
USD796605S1 (en) 2016-06-08 2017-09-05 Karsten Manufacturing Corporation Golf club head
USD796598S1 (en) 2016-05-13 2017-09-05 Karsten Manufacturing Corporation Golf club head
USD796601S1 (en) 2016-06-07 2017-09-05 Karsten Manufacturing Corporation Golf club head
USD796604S1 (en) 2016-06-08 2017-09-05 Karsten Manufacturing Corporation Golf club head
USD807453S1 (en) 2016-06-08 2018-01-09 Karsten Manufacturing Corporation Golf club head
USD852300S1 (en) 2017-12-20 2019-06-25 Karsten Manufacturing Corporation Golf club head

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US745044A (en) * 1903-05-15 1903-11-24 Arlington Company Golf-club.
US1202383A (en) * 1915-09-13 1916-10-24 Hardright Company Playing-club.
US1841062A (en) * 1928-08-15 1932-01-12 Schavolite Golf Corp Golf club head and process of making the same
US1864513A (en) * 1929-04-20 1932-06-28 Jack H Balch Fabricated golf club head
US2301369A (en) * 1939-11-18 1942-11-10 Ralph S Carvill Golf club head and process of making same
US2309729A (en) * 1938-09-30 1943-02-02 Du Pont Molding of polymeric materials
US2346617A (en) * 1942-07-24 1944-04-11 Fred B Schaffer Golf club

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US745044A (en) * 1903-05-15 1903-11-24 Arlington Company Golf-club.
US1202383A (en) * 1915-09-13 1916-10-24 Hardright Company Playing-club.
US1841062A (en) * 1928-08-15 1932-01-12 Schavolite Golf Corp Golf club head and process of making the same
US1864513A (en) * 1929-04-20 1932-06-28 Jack H Balch Fabricated golf club head
US2309729A (en) * 1938-09-30 1943-02-02 Du Pont Molding of polymeric materials
US2301369A (en) * 1939-11-18 1942-11-10 Ralph S Carvill Golf club head and process of making same
US2346617A (en) * 1942-07-24 1944-04-11 Fred B Schaffer Golf club

Cited By (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2686056A (en) * 1948-03-11 1954-08-10 Plastic Golf Products Inc Molded plastic golf club head
US2730159A (en) * 1951-01-17 1956-01-10 Goodrich Co B F Method of making golf balls
US2701719A (en) * 1952-01-04 1955-02-08 Pierro Domenic Di Bowling pin
US2816765A (en) * 1954-01-04 1957-12-17 Harry C Stockfleth Weight-compensated arrowhead
US3233905A (en) * 1961-04-26 1966-02-08 Gen Electric Golf club striking surface of polycarbonate
US3561760A (en) * 1967-03-17 1971-02-09 Hans Klay Hockey stick with flared upper and lower portions
US3430957A (en) * 1967-06-01 1969-03-04 Ernest R Andis Lockable golf club head adjustment
US4326716A (en) * 1979-11-15 1982-04-27 Patentex, S.A Polyurethane golf club
US4534564A (en) * 1982-07-21 1985-08-13 Daiwa Golf Co., Ltd. Golf club head
US4667958A (en) * 1982-11-24 1987-05-26 Raitto David A Nightstick
US4872684A (en) * 1987-11-02 1989-10-10 Dippel Stephanie A Golf putter
US4964641A (en) * 1990-01-26 1990-10-23 Diversified Metal Incorporated Golf club with electrical discharge machined face
US5482281A (en) * 1995-02-17 1996-01-09 Karsten Mfg. Corp. Golf putter head
US6306048B1 (en) 1999-01-22 2001-10-23 Acushnet Company Golf club head with weight adjustment
US6217459B1 (en) 1999-02-04 2001-04-17 Castlehawk, Llc Putter head assembly
USD623709S1 (en) 2010-03-31 2010-09-14 Karsten Manufacturing Corporation Golf club head
USD621460S1 (en) 2010-03-31 2010-08-10 Karsten Manufacturing Corporation Golf club head
USD621461S1 (en) 2010-03-31 2010-08-10 Karsten Manufacturing Corporation Golf club head
USD621458S1 (en) 2010-03-31 2010-08-10 Karsten Manufacturing Corporation Golf club head
USD621462S1 (en) 2010-03-31 2010-08-10 Karsten Manufacturing Corporation Golf club head
USD621891S1 (en) 2010-03-31 2010-08-17 Karsten Manufacturing Corporation Golf club head
USD621459S1 (en) 2010-03-31 2010-08-10 Karsten Manufacturing Corporation Golf club head
USD629476S1 (en) 2010-06-14 2010-12-21 Karsten Manufacturing Corporation Golf club head
USD644703S1 (en) 2010-12-15 2011-09-06 Karsten Manufacturing Corporation Golf club head
USD650455S1 (en) 2011-01-10 2011-12-13 Karsten Manufacturing Corporation Golf club head
USD792536S1 (en) 2016-03-14 2017-07-18 Karsten Manufacturing Corporation Golf club head
USD796598S1 (en) 2016-05-13 2017-09-05 Karsten Manufacturing Corporation Golf club head
USD796601S1 (en) 2016-06-07 2017-09-05 Karsten Manufacturing Corporation Golf club head
USD796602S1 (en) 2016-06-08 2017-09-05 Karsten Manufacturing Corporation Golf club head
USD796605S1 (en) 2016-06-08 2017-09-05 Karsten Manufacturing Corporation Golf club head
USD796604S1 (en) 2016-06-08 2017-09-05 Karsten Manufacturing Corporation Golf club head
USD807453S1 (en) 2016-06-08 2018-01-09 Karsten Manufacturing Corporation Golf club head
USD852300S1 (en) 2017-12-20 2019-06-25 Karsten Manufacturing Corporation Golf club head

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