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 numberUS3680868 A
Publication typeGrant
Publication dateAug 1, 1972
Filing dateDec 18, 1970
Priority dateDec 18, 1970
Publication numberUS 3680868 A, US 3680868A, US-A-3680868, US3680868 A, US3680868A
InventorsRichard J Jacob
Original AssigneeDayco Corp
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Golf putter with rotatable sole device mounted thereon
US 3680868 A
Abstract
A golf putter with at least one rotatable spherical device mounted in the bottom of the putting head to reduce friction between the head and the putting surface during the putting stroke. A variation of the putter permits the device to be removed from the club and replaced by another one having different characteristics.
Images(2)
Previous page
Next page
Claims  available in
Description  (OCR text may contain errors)

United States Patent Jacob 51 Aug. 1, 1972 [54] GOLF PUTTER WITH ROTATABLE SOLE DEVICE MOUNTED THEREON [72] Inventor: Richard J. Jacob, Dayton, Ohio [73] Assignee: Dayco Corporation, Dayton, Ohio [22] Filed: Dec. 18, 1970 [21] Appl. No.: 99,445

[52] US. Cl. ..273/174, 273/167 A [51] Int. Cl. ..A63b 53/04 [58] Field of Search....273/32 R, 67 R, 67 A, 77, 128

R, 273/129, 163 R, 167 R, 167 A, 169, 171, I l72,174,186,193 R, 194R [56] References Cited UNITED STATES PATENTS 2,255,332 9/1941 Russell ..273/174 3,185,483 5/1965 Klynman ..273/162 R 709,1 14 9/1902 Rockwell ..273/174 12/1955 Watson ..273/128 R 3,377,065 4/1968 White ..273/174X 3,529,825 9/1970 White ..273/174 X FOREIGN PATENTS OR APPLICATIONS 11,463 5/ 1902 Great Britain ..273/174 20,698 9/1913 Great Britain ..273/167 A 176,164 3/1922 Great Britain ..273/128 R 328,823 5/1930 Great Britain ..273/163 R Primary Examiner-Richard C. Pinkham Assistant Examiner-Richard J. Apley Attorney-Reuben Wolk [5 7] ABSTRACT A golf putter with at least one rotatable spherical device mounted in the bottom of the putting head to reduce friction between the head and the putting surface during the putting stroke. A variation of the putter permits the device to be removed from the club and replaced by another one having different characteristics.

5 Claims, 7 Drawing Figures PATENTEDAUG 1 I972 3-. 880.868

SHEETIUFZ 25 FIG-3 8 INVENTOR RICHARD J. JACOB PATENTEUAUG 1 1912 3,680,868

sum 2 OF 2 INVENTOR RICHARD J. JACOB GOLF PUTTER WITH ROTATABLE SOLE DEVICE MOUNTED THEREON BACKGROUND OF THE INVENTION Any golfer knows that one of the most frustrating aspects of the game of golf resides in the fact that he 'may reach the golfing green in a comparatively few strokes over a long distance ranging from about 120 yards to 550 yards in most cases, only to find that he is still faced with the exacting task of placing his ball in a small hole. This final'act in many cases requires as many strokes as the negotiation of the entire distance from the tee to the green. It is, therefore,-highly important that everything possible be done to improve the golfers accuracy during the putting operation in order to place the ball in the hole with as few strokes as possible.

One of the causes of inaccurate putting is'the resistance of the golfing surface, which is usually sod consisting of special fine-bladed grass, although it is also possible that certain types of putting may be done on artificial turf, carpeting, concrete, hard sand, etc. The natural resistance of any of these surfaces to the bottom of a conventional putter tends to increase the problems of accurate putting because the rigid nature of the putter permits it to be easily deflected when it contacts the irregularities of the playing surface. It would be desirable, therefore, to minimize the friction between the putter and playing surface, and thus to improve accuracy. One attempt to accomplish this is described in US. Pat. No. 2,426,274, in which the inventor provides a series of discs or a roller on the club head to reduce friction. There are, however, certain drawbacks tothis design which the present invention overcomes. I

SUMMARY OF THE INVENTION The present invention improves the action of a putter by using devices similar to ball bearings, which are placed in the bottom of the putting head so that the club head moves inits putting path with less friction and more accuracy. The use of spherical devices such as balls accomplishes much better results than any other type of rolling devices because they permit flexibility in other directions than the normal direction of motion of the putter. It is possible to accomplish this by one or more balls which would provide a different type of operation in accordance with the desires of the individual.

An alternative form of the invention provides that the spherical devices may be removed from the club for cleaning out any grass or dirt that may become lodged in the devices, while at the same time permitting replacement by devices of different size, weight or quantity to accommodate the skills of each individual user.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an isometric view of one of the embodiments of the invention, illustrating the use of three spherical devices.

FIG. 2 is a section taken along line 2-2 of FIG. 1.

FIG. 3 is a view similarto FIG. 1, illustrating a modified form of the invention having two spherical devices.

FIG. 4 is a view similar to FIG. 1, illustrating another modified form of the invention with a single device.

FIG. 5 is an exploded isometric view of another form of the invention having removable devices.

FIG. 6 is a side view in partial section, illustrating the putter of FIG. 5 in assembled form. I

FIG. 7 is a sectional view taken along lines 7-7 of FIG. 6.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring now to the drawings, FIG. 1 illustrates a putter 10 having a putter head 11 of more or less conventional shape. The putter may be made of steel or aluminum in the same manner in which putters have been made for many years; or may be made of plastic material which has more recently been utilized for the manufacture of putters. The exact type of plastic material is not critical but will preferably be a hard material such as nylon, ABS, polycarbonate, or the like. The exact shape of the putting head is also not critical, and although it is shown in FIG. 2 to be comparatively deep, it may also be considerably thinner as in conventional putters. The head has a bottom 12 and a putting face 13 which contacts the ball.

Mounted in the bottom 12 of the putting head are three spherical devices 14, 15, and 16 which are aligned along an axis parallel to the putting face 13. These may be similar to conventional metal ball bearings or theymay simply be plastic balls made of similar material to a plastic putter. In the cross-sectional view of the putter of FIG. 2 it is seen that a typical ball 15 is mounted in a housing or race 17, with the head of the putter having an aperture 18 in which the ball is free to rotate. It can be readily seen that the balls 14, 15, and 16 contact the golfing surface 19 during the typical putting motion of FIG. 2, rather than having the bottom 12 of the putter make surface contact. The reduction in frictional contact thus produces greater control and accuracy in striking the ball B.

FIG. 3 illustrates a modified form of the invention in which a putter 20 has a putting head 21 with a bottom 22 and a putting face 23. This putter is identical to putter 10 except that only two spherical devices 24 and 25 are mounted in the bottom 22.

FIG. 4 illustrates a further form of the invention in which a putter 30 has a putting head 31, a bottom 32, and a putting face 33. This putter is also identical to putters 10 and 20 except that only a single spherical device 34 is shown as mounted in the bottom 32.

It should also be understood that the number of spherical devices, the exact arrangement in the bottom of the putting head, and the size of the devices are not limiting to the inventive concept. A number of factors enter into the selection of these devices and the individual user may prefer a lighter or heavier set of devices or may find that his own particular putting touch is better adapted to the use of a single device or ball rather than two or three.

In order to provide additional versatility of the novel device, a further form of the invention is illustrated in FIGS. 5 to 7 in which the spherical antifriction devices may be readily removed from the club head. There are several reasons for doing this: first of all, it is possible that dirt or blades of grass may work their way into the spherical devices, and it may be desired to remove them from the club so that they may be cleaned. The modified structure illustrated provides a means for doing this in a very simple manner without the need for special tools or without affecting the structural integrity of the putter. Another advantage of the removable devices lies in the fact that a golfer can readily remove a certain quantity or size of the devices or balls and replace them with other quantities or sizes. For example, the golfer may prefer to use a double ball structure on artificial turf but may find that a single ball structure is superior on natural grass. This expedient also permits the marketing of the club to the public with an optional number of inserts containing a different quantity or different weight of the spherical devices.

The above concept is illustrated in FIGS. 5 to 7 in which reference numeral 40 represents a putter having a putting head 41, a bottom surface 42, and a face 43, similar to the putters 10, 20, and 30 described above. However, in this form of the invention a longitudinal slot 44 is located in the bottom of the putting head parallel to the face 43. This slot extends from the toe portion toward the heel portion partially upward into the head and is exposed at the bottom and is provided with a pair of shoulders 45. The spherical devices 47 and 48 are mounted on a member 46 which may be slid into the slot and rests upon the shoulders 45, as better illustrated in FIG. 7. The member 46 rests firmly within the slot, but yet the ball is free to contact the ground on the lower side and is free to rotate within the space 50 at its upper surface. The member 46 is preferably made of a metal or plastic material which fits snugly within the slot so that it may be simply slid into place and held by friction and removed with comparatively little effort. As shown in FIGS. 5 and 6 the member 46 has a vertical segment 49.which serves to block off the slot 44 so that dirt, grass, etc. will not accumulate in the,

space 50.

When it is desired to remove the member 46 with the two spherical devices it is simply done with the fingers or a hand tool and may then be readily replaced by a similar member having a different quantity or size of these devices. It should be understood that the specific structure shown is only exemplary and that many other equally simple arrangements may be utilized for the removal and replacement of a member and devices.

I claim:

1. A golf putter for use on a golfing surface comprising a handle and a putting head; said putting head having a putting face, toe and heel portions, and a bottom surface; a slot located in said head extending parallel to said putting face from said toe portion toward said heel portion and opening into said bottom surface; and further comprising an assembly having a housing member and at least one freely rotatable spherical device mounted therein; said assembly slidably and securely mounted within said slot; said device contacting the golfing surface during putting action to reduce friction therewith.

2. The putter of claim 1 in which said putting head includes a pair of shoulders defining said slot on the bottom surface of said head, said assembly being supported on said shoulders.

3. The putter of claim 1 having at least two spaced devices aligned along an axis parallel to said putting f d d b It rfa l lie giitte o f l i m l liaving only a single device centrally mounted with respect to the bottom surface.

5. The putter of claim 1 in which said putting head is made of plastic.

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US709114 *Jan 24, 1902Sep 16, 1902Frederick C RockwellHandwriting-developer.
US2255332 *Dec 7, 1940Sep 9, 1941Russell James MGolf club
US2727744 *Jun 11, 1954Dec 20, 1955Watson Andrew CHockey pucks
US3185483 *Jun 6, 1963May 25, 1965Klynman Leonard HGolfer's turf-repairing implement and carrier therefor
US3377065 *Jul 9, 1964Apr 9, 1968Thomas Paul White Sr.Hockey stick road adapter
US3529825 *May 22, 1967Sep 22, 1970White Thomas Paul SrHockey stick road adapter
GB176164A * Title not available
GB328823A * Title not available
GB190211463A * Title not available
GB191320698A * Title not available
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US4008896 *Jul 10, 1975Feb 22, 1977Gordos Ambrose LWeight adjustor assembly
US4498673 *Feb 21, 1984Feb 12, 1985Swanson Arthur PGolf club
US4688799 *Dec 9, 1985Aug 25, 1987Johnson Kenneth WGolf club
US4714252 *Nov 20, 1986Dec 22, 1987Roraback Harry GDual-weighted golf putter head
US4756535 *Apr 17, 1987Jul 12, 1988Bradley Michael RGolf putter
US4832344 *Jul 17, 1987May 23, 1989Tech Line Corp.Golf club
US5213329 *Sep 17, 1991May 25, 1993The Yokohama Rubber Co., Ltd.Golf club head
US5286027 *Oct 30, 1992Feb 15, 1994Angelo KoumarianosGolf putter
US5314184 *Jan 28, 1993May 24, 1994Callaway Golf CompanyGolf putter with bottom rail
US5335913 *May 4, 1993Aug 9, 1994White Robert W DGolf club
US5340106 *May 21, 1993Aug 23, 1994Ravaris Paul AMoment of inertia golf putter
US5377987 *May 16, 1994Jan 3, 1995Irvin, Jr.; James H.Golf putter and method for putting
US5411263 *May 19, 1994May 2, 1995Callaway Golf CompanyGolf putter with bottom rail
US5460377 *Aug 5, 1994Oct 24, 1995Callaway Golf CompanyFor use with a putter shaft
US5464218 *Jul 7, 1994Nov 7, 1995Callaway Golf CompanyGolf putter head with undercut back cavity and peripheral weighting
US5472203 *May 2, 1994Dec 5, 1995Callaway Golf CompanyIron golf club head with dual intersecting recesses
US5544887 *Jul 28, 1995Aug 13, 1996Bryant; JudyGolf putter training device
US5603665 *Apr 8, 1996Feb 18, 1997Bryant; JudyGolf putter training device
US5605510 *May 15, 1995Feb 25, 1997Callaway Golf CompanyGolf putter with face plate insert
US5607365 *Mar 12, 1996Mar 4, 1997California Institute Of TechnologyGolf club putter
US5655976 *Dec 18, 1995Aug 12, 1997Rife; GuerinGolf club head with improved weight configuration
US5685792 *Nov 22, 1995Nov 11, 1997Rsr Enterprises, Inc.Street and ice hockey stick
US5749795 *Oct 16, 1995May 12, 1998Callaway Golf CompanyIron golf club head with dual intersecting recesses
US5938540 *Jan 27, 1998Aug 17, 1999Lu; Clive S.Golf club with interchangeable sole
US5967902 *May 29, 1998Oct 19, 1999Greenquist; GaryGolf putter and method
US6056649 *Oct 19, 1998May 2, 2000Daiwa Seiko, Inc.Golf club head
US6431992 *Jul 18, 2001Aug 13, 2002Richard H. MoodyGolf swing training club
US6547672 *Aug 29, 2000Apr 15, 2003Brian ChoughPractice golf putter
US6923734Apr 25, 2003Aug 2, 2005Jas. D. Easton, Inc.Golf club head with ports and weighted rods for adjusting weight and center of gravity
US7189169Dec 20, 2005Mar 13, 2007Dogleg Right CorporationCustomizable center-of-gravity golf club head
US7344450Aug 24, 2006Mar 18, 2008Dogleg Right CorporationMethod for adjusting the center of gravity of a golf club head
US7452285Dec 28, 2006Nov 18, 2008Taylor Made Golf Company, Inc.Weight kit for golf club head
US7566276Aug 24, 2006Jul 28, 2009Dogleg Right CorporationMulti-piece putter head having an insert
US7604546 *Jun 7, 2007Oct 20, 2009Horace BrownGolf swing and putting stroke training device and method
US7625298 *Aug 14, 2007Dec 1, 2009John Emmanuel BennettDynamic golf club heads with momentum
US7828672Aug 24, 2006Nov 9, 2010Dogleg Right CorporationBall flight adjustment apparatus for a golf club head
US7927231 *Dec 23, 2009Apr 19, 2011Bridgestone Sports Co., Ltd.Golf club head
US8105175 *Mar 23, 2009Jan 31, 2012Acushnet CompanyGolf club having removable sole weight using custom and interchangeable panels
US8177662Aug 24, 2006May 15, 2012Dogleg Right CorporationGolf club head weight with seal and vibration dampener
US8298096 *Sep 20, 2010Oct 30, 2012Nike, Inc.Golf clubs and golf club heads having adjustable weight members
US8382604May 8, 2009Feb 26, 2013Dogleg Right CorporationModular hosel, weight-adjustable golf club head assembly
US8403771 *Jul 23, 2012Mar 26, 2013Callaway Gold CompanyGolf club head
US8529368 *Oct 4, 2012Sep 10, 2013Callaway Golf CompanyGolf club head
US8668600Mar 9, 2012Mar 11, 2014Butler Cabin Golf, L.L.C.Fluted putter head
US8690706Oct 31, 2012Apr 8, 2014Nike, Inc.Golf clubs and golf club heads having adjustable weight members
US8777774 *Mar 15, 2013Jul 15, 2014Callaway Golf CompanyAdjustable iron-type golf club head
US8821307Mar 14, 2011Sep 2, 2014Sri Sports LimitedGolf club head
US20130165252 *Aug 21, 2012Jun 27, 2013Callaway Golf CompanyGolf Club Head
US20130324290 *May 31, 2012Dec 5, 2013Nike, Inc.Golf club head or other ball striking device with removable and/or movable sole member
USRE37647 *Mar 4, 1999Apr 9, 2002California Institute Of TechnologyGolf club putter
WO1988002642A1 *Oct 9, 1987Apr 21, 1988Armstrong Kenneth AlanGolf club head
WO2005018758A2 *Aug 13, 2004Mar 3, 2005Montalembert Bernard DeTraining club comprising a wheel for a golf player
Classifications
U.S. Classification473/328, 473/336, 473/230
International ClassificationA63B53/04
Cooperative ClassificationA63B49/06, A63B53/0487
European ClassificationA63B53/04P
Legal Events
DateCodeEventDescription
May 9, 1983ASAssignment
Owner name: DAYCO CORPORATION
Free format text: CERTIFICATE BY THE SECRETARY OF STATE OF MICHIGAN SHOWING MERGER OF COMPANIES, AND CHANGE OF NAME OF THE SURVIVING CORPORATION.;ASSIGNORS:DAYCO CORPORATION A DE CORP. (MERGED INTO);DAYCO CORPORATION OF MICHIGAN, A MI CORP. (CHANGED TO);REEL/FRAME:004122/0274
Effective date: 19820909