Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.

Patents

  1. Advanced Patent Search
Publication numberUS3556533 A
Publication typeGrant
Publication dateJan 19, 1971
Filing dateAug 29, 1968
Priority dateAug 29, 1968
Publication numberUS 3556533 A, US 3556533A, US-A-3556533, US3556533 A, US3556533A
InventorsJames E Hollis
Original AssigneeBancroft Racket Co
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Sole plate secured to club head by screws of different specific gravities
US 3556533 A
Images(1)
Previous page
Next page
Description  (OCR text may contain errors)

United States Patent Inventor James E. IIollis Providence, RJ. AppL No. 756,123 Filed Aug. 29, 1968 Patented Jan. 19, 1971 Assignee Bancroft Racket Company a corporation of Rhode Island SOLE PLATE SECURED T0 CLUB HEAD BY SCREWS OF DIFFERENT SPECIFIC GRAVITIES 1 Claim, 5 Drawing Figs.

U.S. CL... 273/171 1nt.Cl A63b 53/08 Field of Search 273/169,

STAINLESS STEEL ALUMINUM [56] References Cited UNITED STATES PATENTS 1,133,129 3/1915 Govan 273/171 1,518,316 12/1924 Ellingham 273/171 2,056,335 10/1936 Wettlaufer 273/171X 2,756,055 7/1956 Bittner 273/173X 3,305,235 2/1967 Williams, Jr. 273/79X 3,466,047 9/1969 Rodia et a1 273/171 Primary ExaminerRichard C. Pinkham Assistant ExaminerRichard J. Apley Attorney-Barlow & Barlow ABSTRACT: A golf club having a wooden head with the sole plate attached to the bottom of the head by screws, the heads of which screws are exposed, the fastening screws being selected from different materials and, therefore, of different weights for providing the desired balance of the head while at the same time securing the sole plate to the head.

INVENTOR JAMES E. HOLLIS PATENTEU JAN 1 9 1971 FIG.5

ATTORNEYS SOLE PLATE SECURED TO CLUB HEAD BY SCREWS OF DIFFERENT SPECIFIC GRAVITIES BACKGROUND OF THE INVENTION For many years golf clubs have been made in matched sets by weighting the heads of the club to balance about a certain determined point by means of a swing weight" machine. Wooden clubs or clubs having a wooden head are usually provided with a metal sole plate for protection of that head as it strikes and slides across the ground. Such a sole plate is held in position by screws passing through openings in the sole plate with the heads of the screws flush with the outer surface of the sole plate, and no attempt has been made to utilize such screws for any other purpose than for holding the plate in position. If a weight was to be added to the club head, such as the conventional wooden club head, some separate and additional means have been provided for doing so completely independent of the screws which hold the plate in position, thus making an additional and technical operation for the accurate weighting of the head.

SUMMARY OF THE INVENTION This invention applies to a wooden club head having an attached sole plate held in position by means of screws and also utilizing the screws for balancing the club head by making the screws in identical physical dimensions but of different materials with various specific gravities and then selecting the proper number of screws of one or more materials until the head is weighted to the desired extent to provide the proper balance.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a persepective view of a golf club head with the shaft broken away and showing the front edge of the sole plate;

FIG. 2 is a bottom plan view thereof;

FIG. 3 is a perspective view of a plurality of sole plate attaching screws of different materials;

FIG. 4 is a sectional view on line 4-4 of FIG. 2; and

FIG. 5 is an elevation showing a step in the swing weighting of the clubs.

DESCRIPTION OF THE PREFERRED EMBODIMENT In the drawings designates a golf club with a shaft 11 broken away, the head I2 being of wood or synthetic material with a face 13 and a sole plate 14. The sole plate 14 is attached to the bottom or sole of the head 12 by screws l5, l6, l7, l8 and 19, (FIG. 2), each of which screws is threaded as at for insertion in the clubhead material and with a shank 21 tapered as illustrated. The screw head 22 is slotted as at 23 and beveled as at 24 to fit into a companion beveled opening 25 in the sole plate 14 so as to secure the sole plate firmly to the head I2 with the outer surface of the screw head flush with the outer surface of the sole plate.

The screws which hold the plate in position are ordinarily all of the same material and are used solely for holding the plate in position. However, in the case of this invention the screws are made in identical exterior dimensions from a variety of different materials with varying specific gravities which will be of different weights, such as brass, stainless steel, aluminum and lead, and the weight of the head of the golf club may be varied easily and accurately by using screws of different materials in the several locations. Thus, the heaviest head may be provided by using all lead screws, and the lightest head provided by using all aluminum screws, whereas intermediate weights of heads to the players preference may be provided by choosing the brass or the stainless steel or in some cases there may be utilized screws of different materials in the same head. Thus, in order to make up the proper weight, a choice may be had of two or more of a variety of materials.

The method of the present invention is of particular advantage in the making of matched sets in which the clubs of the set are tested in the usual swing-weight machine W shown in FIG. 5 to determine the required amount of weight to be added or subtracted from the head with the screws each of a known weight. These may be interchanged until that exact weight is obtained, while the screws do the double duty of holding the plate in position.

Further, by having a number of screws located at various locations in the bottom of the head, some torsional balance of the head may be made by interchanging the screws of one weight with the screws of another weight in the center or closer to the face or heel of the club to mitigate the tendency of a player to slice" or hook. Thus, a large variety of fine weightings-may be provided easily and personally without any special construction modification of the club but merely by utilizing ordinary screw sockets primarily intended to hold the plate in position.

If desired, it may be found helpful to use large size screws in order to get a greater scope of weights than would occur if the screws were of the usual small diameter.

I claim:

I. A golf club having a head with a sole plate over its bottom surface, said sole plate having at least three holes, a screw positioned in each of said holes to secure said sole plate to the bottom of said head, each of said screws being of identical physical dimensions but of different specific gravities thereby weighting and balancing the head as desired.

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US1133129 *Mar 6, 1913Mar 23, 1915James GovanGolf-club.
US1518316 *Dec 14, 1922Dec 9, 1924Ellingham Robert WGolf club
US2056335 *Jan 13, 1934Oct 6, 1936William L WettlauferGolf club
US2756055 *Nov 28, 1951Jul 24, 1956Louis BittnerWeighted wood head for golf clubs
US3305235 *Jul 28, 1965Feb 21, 1967Williams Jr Albert JLongitudinally adjustable golf club including head with high moment of inertia abouttwo axes
US3466047 *Oct 3, 1966Sep 9, 1969Frank J RodiaGolf club having adjustable weights
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3652094 *Oct 21, 1969Mar 28, 1972Cecil C GloverGolf club with adjustable weighting plugs
US4173343 *Jun 7, 1976Nov 6, 1979Zephyr Industries, Inc.Mallet putter
US4553755 *Jan 16, 1984Nov 19, 1985Daiwa Golf Co., Ltd.Golf club head
US4754977 *Jun 16, 1986Jul 5, 1988Players Golf, Inc.Golf club
US4867458 *Jul 13, 1988Sep 19, 1989Yamaha CorporationGolf club head
US4869507 *Jun 25, 1987Sep 26, 1989Players Golf, Inc.Golf club
US5050879 *Apr 25, 1990Sep 24, 1991Cipa Manufacturing CorporationGolf driver with variable weighting for changing center of gravity
US5272802 *Jan 21, 1992Dec 28, 1993Head Sports, Inc.Method for construction of a golf club
US5297794 *Jan 14, 1993Mar 29, 1994Lu Clive SGolf club and golf club head
US5776011 *Sep 27, 1996Jul 7, 1998Echelon GolfGolf club head
US5807188 *Dec 20, 1996Sep 15, 1998Karsten Manufacturing CorporationWood type golf club head
US5911638 *Jul 5, 1994Jun 15, 1999Goldwin Golf Usa, Inc.Golf club head with adjustable weighting
US7303377Apr 14, 2004Dec 4, 2007Pratt & Whitney Canada Corp.Apparatus and method of balancing a shaft
US7306432Sep 13, 2005Dec 11, 2007Pratt & Whitney Canada Corp.Apparatus and method of balancing a shaft
US7377861 *Dec 21, 2005May 27, 2008Bridgestone Sports Co., Ltd.Golf club head
US7407447Feb 23, 2005Aug 5, 2008Taylor Made Golf Company, Inc.Movable weights for a golf club head
US7419441Feb 24, 2005Sep 2, 2008Taylor Made Golf Company, Inc.Golf club head weight reinforcement
US7431668 *Dec 22, 2005Oct 7, 2008Bridgestone Sports Co., Ltd.Golf club head
US7435191 *Dec 22, 2005Oct 14, 2008Bridgestone Sports Co., Ltd.Golf club head
US7448963Jan 31, 2007Nov 11, 2008Taylor Made Golf Company, Inc.Golf club head having movable weights
US7452285 *Dec 28, 2006Nov 18, 2008Taylor Made Golf Company, Inc.Weight kit for golf club head
US7530904Jan 31, 2007May 12, 2009Taylor Made Golf Company, Inc.Golf club head having movable weights
US7540811Jan 31, 2007Jun 2, 2009Taylor Made Golf Company, Inc.Golf club head having movable weights
US7568985Jan 31, 2007Aug 4, 2009Taylor Made Golf Company, Inc.Golf club head having movable weights
US7578753Jan 31, 2007Aug 25, 2009Taylor Made Golf Company, Inc.Golf club head having movable weights
US7591738Jan 31, 2007Sep 22, 2009Taylor Made Golf Company, Inc.Golf club head having movable weights
US7621823Jan 31, 2007Nov 24, 2009Taylor Made Golf Company, Inc.Golf club head having movable weights
US7632194Dec 12, 2007Dec 15, 2009Taylor Made Golf Company, Inc.Movable weights for a golf club head
US7713142Jan 25, 2008May 11, 2010Taylor Made Golf Company, Inc.Golf club head weight reinforcement
US7717804Jan 31, 2007May 18, 2010Taylor Made Golf Company, Inc.Golf club head having movable weights
US7717805Jan 31, 2007May 18, 2010Taylor Made Golf Company, Inc.Golf club head having movable weights
US7731603Sep 27, 2007Jun 8, 2010Taylor Made Golf Company, Inc.Golf club head
US7744484Sep 19, 2006Jun 29, 2010Taylor Made Golf Company, Inc.Movable weights for a golf club head
US7744485 *Apr 10, 2008Jun 29, 2010Karsten Manufacturing CorporationGolf putter heads and removable putter weights
US7753806Jan 23, 2008Jul 13, 2010Taylor Made Golf Company, Inc.Golf club
US7771291Oct 12, 2007Aug 10, 2010Taylor Made Golf Company, Inc.Golf club head with vertical center of gravity adjustment
US7846041Oct 30, 2009Dec 7, 2010Taylor Made Golf Company, Inc.Movable weights for a golf club head
US7887434May 17, 2010Feb 15, 2011Taylor Made Golf Company, Inc.Golf club
US7938740 *Nov 16, 2006May 10, 2011Cobra Golf, Inc.Golf club head
US7963861Jan 31, 2007Jun 21, 2011Taylor Made Golf Company, Inc.Golf club head having movable weights
US7980964Jan 29, 2010Jul 19, 2011Cobra Golf, Inc.Golf club head with concave insert
US8007371Mar 17, 2008Aug 30, 2011Cobra Golf, Inc.Golf club head with concave insert
US8038545Jan 29, 2010Oct 18, 2011Cobra Golf IncorporatedGolf club head with concave insert
US8105175 *Mar 23, 2009Jan 31, 2012Acushnet CompanyGolf club having removable sole weight using custom and interchangeable panels
US8118689Jan 20, 2011Feb 21, 2012Taylor Made Golf Company, Inc.Golf club
US8197357 *Feb 1, 2012Jun 12, 2012Callaway Golf CompanyGolf club head with composite weight port
US8197358 *Feb 1, 2012Jun 12, 2012Callaway Golf CompanyGolf club head with composite weight port
US8216087Aug 27, 2010Jul 10, 2012Cobra Gold IncorporatedGolf club head
US8226499Jul 18, 2011Jul 24, 2012Cobra Golf IncorporatedGolf club head with concave insert
US8235843 *Apr 3, 2012Aug 7, 2012Callaway Golf CompanyGolf club head with composite weight port
US8262497 *Dec 21, 2011Sep 11, 2012Acushnet CompanyGolf club having removable sole weight using custom and interchangeable panels
US8262506 *Apr 16, 2012Sep 11, 2012Callaway Golf CompanyGolf club head with composite weight port
US8262507Jul 12, 2010Sep 11, 2012Taylor Made Golf Company, Inc.Golf club head with vertical center of gravity adjustment
US8303433Oct 20, 2009Nov 6, 2012Cobra Golf IncorporatedGolf club head with moveable insert
US8353786Dec 28, 2007Jan 15, 2013Taylor Made Golf Company, Inc.Golf club head
US8430763May 10, 2012Apr 30, 2013Taylor Made Golf Company, Inc.Fairway wood center of gravity projection
US8460592May 9, 2011Jun 11, 2013Cobra Golf IncorporatedProcess of forming a hollow wood-type golf club head
US8485920May 22, 2008Jul 16, 2013Cobra Golf IncorporatedMetal wood golf club head
US8523705Nov 2, 2006Sep 3, 2013Cobra Golf IncorporatedGolf club head
US8562457May 27, 2011Oct 22, 2013Taylor Made Golf Company, Inc.Golf club head having movable weights
US8579725 *Sep 7, 2012Nov 12, 2013Taylor Made Golf Company, Inc.Golf club head with vertical center of gravity adjustment
US8591353Dec 17, 2012Nov 26, 2013Taylor Made Golf Company, Inc.Fairway wood golf club head
US8647216May 6, 2010Feb 11, 2014Taylor Made Golf Company, Inc.Golf club head
US8663029Feb 21, 2012Mar 4, 2014Taylor Made Golf CompanyGolf club
US8684863Dec 27, 2011Apr 1, 2014Acushnet CompanyGolf club having removable weight
US20120083359 *Sep 30, 2010Apr 5, 2012Nike, Inc.Golf club head or other ball striking device having adjustable weighting features
US20120094781 *Dec 21, 2011Apr 19, 2012Breier Joshua GGolf club having removable sole weight using custom and interchangeable panels
US20120122601 *Dec 29, 2011May 17, 2012Taylor Made Golf Company, Inc.Golf club head
US20120129625 *Feb 1, 2012May 24, 2012Callaway Golf CompanyGolf club head with composite weight port
US20120135820 *Feb 1, 2012May 31, 2012Callaway Golf CompanyGolf club head with composite weight port
US20120190479 *Apr 3, 2012Jul 26, 2012Callaway Golf CompanyGolf club head with composite weight port
US20120202616 *Apr 16, 2012Aug 9, 2012Callaway Golf CompanyGolf Club Head With Composite Weight Port
WO2011014319A1 *Jun 23, 2010Feb 3, 2011Nike International, Ltd.Golf club with non-metallic fasteners
WO2013181400A2 *May 30, 2013Dec 5, 2013Nike International Ltd.Golf club head or other ball striking device with removable and/or movable sole member
Classifications
U.S. Classification473/338, 411/900
International ClassificationA63B53/04
Cooperative ClassificationA63B2053/0491, Y10S411/90, A63B2053/0433, A63B53/0466, A63B53/04
European ClassificationA63B53/04