US3012783A - Adjustable bowling ball grip - Google Patents

Adjustable bowling ball grip Download PDF

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Publication number
US3012783A
US3012783A US11221A US1122160A US3012783A US 3012783 A US3012783 A US 3012783A US 11221 A US11221 A US 11221A US 1122160 A US1122160 A US 1122160A US 3012783 A US3012783 A US 3012783A
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Prior art keywords
sleeve
adjustable
housing
grip
bowling ball
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Expired - Lifetime
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US11221A
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Ralph H Bunk
William O Trissell
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Priority to US11221A priority Critical patent/US3012783A/en
Priority to FR853606A priority patent/FR1285507A/en
Priority to BE600606A priority patent/BE600606A/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
    • A63B37/00—Solid balls; Rigid hollow balls; Marbles
    • A63B37/0001—Balls with finger holes, e.g. for bowling
    • A63B37/0002—Arrangements for adjusting, improving or measuring the grip, i.e. location, size, orientation or the like of finger holes

Definitions

  • Bowling balls are provided with two or more radial openings, one for the thumb and one, or in some cases two, for the fingers.
  • the sizes of the diameters of the openings, particularly the size of the diameter of the thumb opening, is of great importance for accurate control of the ball.
  • the fit should be such that the thumb and fingers move smoothly in and out, i.e., exactly the right frictional resistance should be provided and this can be changed by very slight variations in the effective diameters of the openings.
  • the principal object of this invention to provide an adjustable grip for a bowling ball, the grip having an opening which is adjustable as to the size of its diameter providing an adjustable finger or thumb hole.
  • Another object of the invention is to provide an adjustable bowling ball grip of relatively simple construction yet which is of rugged build to stand up well under heavy use.
  • Still another object is to provide a bowling ball thumb and/or finger hole which is very easily adjustable.
  • a further object is to provide an adjustable bowling ball grip which is of low cost and which is easy to install in the bowling ball. 7
  • Another object is to provide a bowling ball grip that satisfies the demands of the ordinary users of bowling balls.
  • FIG. I is a vertical sectional view of the adjustable bowling ball grip of the invention incorporated in a bowling ball;
  • FIG. II is a plan view of the adjustable bowling ball grip shown in FIG. I.
  • FIG. III is a vertical sectional view of a modified bowling ball grip.
  • a bowling ball 1 is provided with a conventional drilled radial finger hole 2 and a drilled radial hole 3 which receives the adjustable grip 4 of the invention.
  • An adjustable grip 4 may be used in both or in either one of the holes 2 and 3 the hole 2 in such case being enlarged to receive the grip.
  • the adjustable grip 4 includes three components, a hollow cylindrical housing 5, a sleeve 6,'and an adjustment nut 7.
  • the housing 5 is formed of a rigid synthetic resin that is tough and durable; it is formed as a hollow right cylinder and held by means of cement 8 in the hole 3 and is rounded at 9 and 10 after installation by, for example, filing, to the shape of the ball and to provide a smooth entrance for the thumb, respectively.
  • the housing 5 may be externally threaded and held by means of cooperating threads in the hole 3 or the housing 5 may be internally threaded at its bottom and held by means of cooperating threads on a mounting cap fixed as by a screw in the bottom of the hole 3.
  • the housing 5 has a collar 11 at its upper end and is internally threaded at its lower end.
  • the sleeve 6 is formed as a hollow right cylinder of a flexible, elastic synthetic resin, such as polyethylene, and is received in a close fit within the housing 5, the sleeve 6 being slipped into the housing from the lower end of the housing until the sleeve engages the collar 11 on the housing.
  • the sleeve 6 defines the thumb hole for the ball 1 the diameter of which hole is adjustable and is at a maximum when the adjustment nut 7 bears lightly on the sleeve so as not to deformingly compress it between the nut 7 and the collar 11 as illustrated in full lines in FIG. I.
  • the adjustment nut 7 is threaded at its lower end to engage the internal threads of the housing 5, has a crown 12 which is not threaded so as to provide a clearance space 13 between the crown and the inner wall of the housing 5 and which is provided with a flange 14 for retaining the lower end of the sleeve 6 in place against the inner wall of the housing 5 when the sleeve is deformingly compressed, and has a rectangularly shaped hole 15 (FIG. II) for receiving a suitably shaped tool.
  • the adjustment nut 7 When the adjustment nut 7 is turned by means of such tool to the right or left, it permits the flexible elastic sleeve 6 to expand longitudinally, or compresses the sleeve so as to reduce the size of the thumb hole.
  • the sleeve 6 is shown in full lines in FIG. I in its free or uncompressed condition.
  • the broken lines in FIG. I indicate the deformed shape of the sleeve 6 under compression wherein the diameter of the thumb hole is reduced, the inner walls of the sleeve flowing inwardly under pressure.
  • the adjustable grip 4 satisfies the demands of the ordinary users of bowling balls.
  • the adjustment to vary the size of the hole or holes is easy to make and the polyethylene sleeve releases the thumb and/or finger nicely providing exactly the right frictional resistance.
  • FIG. III A modification of the adjustable grip 4 is shown in FIG. III. Similar reference numerals in FIGS. I and'Il and FIG. III refer to parts which are alike in structure and in function. The only real difference between the adjustable grip 4 and the modified adjustable .grip 4a is a difference in shapes of the adjustment nuts 7 and 7a.
  • the housing 5 is shown rounded at 9 and 10.
  • the housing 5a is shown before installation in a bowling ball and Y broken lines in FIG. III indicate the deformed shape which the sleeve 6a assumes under compression when I, the adjustment nut 7a is turned to compress the sleeve
  • the three components can be made at low cost, are easy to v
  • the sleeve 6a is shown in full lines in FIG. III in its free or uncompressed condition. The.
  • An adjustable grip for a bowling ball comprising, in combination, an internally threaded, single-walled, hollow housing receivable in a radial opening in the ball, a collar on the housing, a flexible, elastic, single-walled sleeve fitted snugly within the housing, and an adjustment nut cooperating with the internally threaded hollow housing, the sleeve being retained in the housing by the collar at its one end and the adjustment nut at its other end, the nut having means engaging an end surface of the sleeve to as to impart a longitudinal compressive force on said end of the sleeve when turned in a direction toward the collar to compress the sleeve so as to reduce the internal diameter of the sleeve an amount varying from a minimum reduction adjacent the ends of the sleeve to a maximum reduction between said ends of the sleeve,- turning of the adjustment nut in the opposite direction permitting the sleeve to expand longitudinally to its uncompressed position.
  • An adjustable grip for a bowling ball comprising, in combination, an internally threaded, hollow, one-piece housing receivable in a radial opening defined by the ball, a flexible elastic sleeve fitted snugly within the housing, stop means on the housing, and an adjustment nut cooperating with the internally threaded hollow housing, the sleeve being retained in the housing by the stop means at its one end and the adjustment nut at its other end, the nut having means engaging an end surface of the sleeve so as to impart a longitudinal compressive force on said end of the sleeve when turned in a direction toward the stop means to compress the sleeve so as to reduce the internal diameter of the sleeve an amount varying from a minimum reduction adjacent the ends of the sleeve to a maximum reduction between said ends of the sleeve, turning of the adjustment nut in the opposite direction permitting the sleeve to expand longitudinally to its uncompressed position.

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  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Pens And Brushes (AREA)

Description

Dec. 12, 1961 R. H. BUNK ET AL ADJUSTABLE BOWLING BALL GRIP Filed Feb. 26, 1960 INVENTORS RALPH H. BUNK WILLIAM O. TRISSELL ATTORN YS United States Patent 3,012,783 Patented Dec. 12, 1961 3,012,783 ADJUSTABLE BOWLING BALL GRIP Ralph H. Bunk, 3640 McCord Road, and William O. Trissell, 5703 Webster Road, both of Sylvania, Ohio Filed Feb. 26, 1960, Ser. No. 11,221 3 Ciairns. (Cl; 273-63) This invention relates to an adjustable grip for a bowling ball.
Bowling balls are provided with two or more radial openings, one for the thumb and one, or in some cases two, for the fingers. The sizes of the diameters of the openings, particularly the size of the diameter of the thumb opening, is of great importance for accurate control of the ball. The fit should be such that the thumb and fingers move smoothly in and out, i.e., exactly the right frictional resistance should be provided and this can be changed by very slight variations in the effective diameters of the openings.
The required accuracy of fit results in difliculties in use, due to expansion and contraction of the solid material of the ball, changes in thumb and finger sizes due to, for example, calluses, the humidity due to, for example, perspiration, etc. Hence, it is desirable to pro vide an adjustable grip. However, it is the usual practice to drill the ball after individual measurements have been taken to provide a permanent grip. Thereafter, any adjustment is made only by plugging and redrilling and reshaping. Since adjustment is frequently desirable, such usual practice results either in undue expense or, alternatively, in inaccurate bowling and in discomfort.
It is, therefore, the principal object of this invention to provide an adjustable grip for a bowling ball, the grip having an opening which is adjustable as to the size of its diameter providing an adjustable finger or thumb hole.
Another object of the invention is to provide an adjustable bowling ball grip of relatively simple construction yet which is of rugged build to stand up well under heavy use.
Still another object is to provide a bowling ball thumb and/or finger hole which is very easily adjustable.
A further object is to provide an adjustable bowling ball grip which is of low cost and which is easy to install in the bowling ball. 7
Another object is to provide a bowling ball grip that satisfies the demands of the ordinary users of bowling balls.
Other objects and advantages of the invention will become apparent upon perusal of the following description as illustrated by the accompanying drawings in which:
FIG. I is a vertical sectional view of the adjustable bowling ball grip of the invention incorporated in a bowling ball;
FIG. II is a plan view of the adjustable bowling ball grip shown in FIG. I; and
FIG. III is a vertical sectional view of a modified bowling ball grip.
The following description and the accompanying drawings are to be taken as illustrative of the invention but are not to impose limitations on its scope.
A bowling ball 1 is provided with a conventional drilled radial finger hole 2 and a drilled radial hole 3 which receives the adjustable grip 4 of the invention. An adjustable grip 4 may be used in both or in either one of the holes 2 and 3 the hole 2 in such case being enlarged to receive the grip.
The adjustable grip 4 includes three components, a hollow cylindrical housing 5, a sleeve 6,'and an adjustment nut 7.
The housing 5 is formed of a rigid synthetic resin that is tough and durable; it is formed as a hollow right cylinder and held by means of cement 8 in the hole 3 and is rounded at 9 and 10 after installation by, for example, filing, to the shape of the ball and to provide a smooth entrance for the thumb, respectively.' Alternatively, the housing 5 may be externally threaded and held by means of cooperating threads in the hole 3 or the housing 5 may be internally threaded at its bottom and held by means of cooperating threads on a mounting cap fixed as by a screw in the bottom of the hole 3. The housing 5 has a collar 11 at its upper end and is internally threaded at its lower end.
The sleeve 6 is formed as a hollow right cylinder of a flexible, elastic synthetic resin, such as polyethylene, and is received in a close fit within the housing 5, the sleeve 6 being slipped into the housing from the lower end of the housing until the sleeve engages the collar 11 on the housing. The adjustment nut 7, which may be formed of the same material as the housing 5, retains the sleeve 6 in the housing 5. The sleeve 6 defines the thumb hole for the ball 1 the diameter of which hole is adjustable and is at a maximum when the adjustment nut 7 bears lightly on the sleeve so as not to deformingly compress it between the nut 7 and the collar 11 as illustrated in full lines in FIG. I.
The adjustment nut 7 is threaded at its lower end to engage the internal threads of the housing 5, has a crown 12 which is not threaded so as to provide a clearance space 13 between the crown and the inner wall of the housing 5 and which is provided with a flange 14 for retaining the lower end of the sleeve 6 in place against the inner wall of the housing 5 when the sleeve is deformingly compressed, and has a rectangularly shaped hole 15 (FIG. II) for receiving a suitably shaped tool. When the adjustment nut 7 is turned by means of such tool to the right or left, it permits the flexible elastic sleeve 6 to expand longitudinally, or compresses the sleeve so as to reduce the size of the thumb hole. The sleeve 6 is shown in full lines in FIG. I in its free or uncompressed condition. The broken lines in FIG. I indicate the deformed shape of the sleeve 6 under compression wherein the diameter of the thumb hole is reduced, the inner walls of the sleeve flowing inwardly under pressure.
The adjustable grip 4 satisfies the demands of the ordinary users of bowling balls. The adjustment to vary the size of the hole or holes is easy to make and the polyethylene sleeve releases the thumb and/or finger nicely providing exactly the right frictional resistance.
install in the bowling ball, and stand up well under heavy use.
A modification of the adjustable grip 4 is shown in FIG. III. Similar reference numerals in FIGS. I and'Il and FIG. III refer to parts which are alike in structure and in function. The only real difference between the adjustable grip 4 and the modified adjustable .grip 4a is a difference in shapes of the adjustment nuts 7 and 7a.
This permits the sleeve 6a to be longer than the sleeve 6.
The housing 5 is shown rounded at 9 and 10. The housing 5a is shown before installation in a bowling ball and Y broken lines in FIG. III indicate the deformed shape which the sleeve 6a assumes under compression when I, the adjustment nut 7a is turned to compress the sleeve The three components can be made at low cost, are easy to v The sleeve 6a is shown in full lines in FIG. III in its free or uncompressed condition. The.
3 between the nut and the collar 11a whereupon the diameter of the thumb hole is reduced.
Various modifications in details of construction may be made without departing from the spirit and scope of the invention.
Having described the invention, we claim:
1. An adjustable grip for a bowling ball comprising, in combination, an internally threaded, single-walled, hollow housing receivable in a radial opening in the ball, a collar on the housing, a flexible, elastic, single-walled sleeve fitted snugly within the housing, and an adjustment nut cooperating with the internally threaded hollow housing, the sleeve being retained in the housing by the collar at its one end and the adjustment nut at its other end, the nut having means engaging an end surface of the sleeve to as to impart a longitudinal compressive force on said end of the sleeve when turned in a direction toward the collar to compress the sleeve so as to reduce the internal diameter of the sleeve an amount varying from a minimum reduction adjacent the ends of the sleeve to a maximum reduction between said ends of the sleeve,- turning of the adjustment nut in the opposite direction permitting the sleeve to expand longitudinally to its uncompressed position.
2. An adjustable grip for a bowling ball according to claim 1 wherein the sleeve is polyethylene for smooth release of the thumb or finger.
3. An adjustable grip for a bowling ball comprising, in combination, an internally threaded, hollow, one-piece housing receivable in a radial opening defined by the ball, a flexible elastic sleeve fitted snugly within the housing, stop means on the housing, and an adjustment nut cooperating with the internally threaded hollow housing, the sleeve being retained in the housing by the stop means at its one end and the adjustment nut at its other end, the nut having means engaging an end surface of the sleeve so as to impart a longitudinal compressive force on said end of the sleeve when turned in a direction toward the stop means to compress the sleeve so as to reduce the internal diameter of the sleeve an amount varying from a minimum reduction adjacent the ends of the sleeve to a maximum reduction between said ends of the sleeve, turning of the adjustment nut in the opposite direction permitting the sleeve to expand longitudinally to its uncompressed position.
References Cited in the file of this patent UNITED STATES PATENTS 2,210,528 Darby Aug. 6, 1940 2,372,958 Keith Apr. 3, 1945 2,372,959 Keith Apr. 3, 1945 l l 4 l
US11221A 1960-02-26 1960-02-26 Adjustable bowling ball grip Expired - Lifetime US3012783A (en)

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Application Number Priority Date Filing Date Title
US11221A US3012783A (en) 1960-02-26 1960-02-26 Adjustable bowling ball grip
FR853606A FR1285507A (en) 1960-02-26 1961-02-23 Handle or adjustable grip for boules and the like
BE600606A BE600606A (en) 1960-02-26 1961-02-24 Handle or adjustable grip for boules and the like

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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4416452A (en) * 1981-12-30 1983-11-22 Heimbigner Donald L Bowling ball finger grip insert
US4432546A (en) * 1982-09-20 1984-02-21 Allen Jr Bernard D Finger insert for bowling balls
US4560162A (en) * 1984-12-20 1985-12-24 Miller Peter J Adjustable grip for bowling ball
US4892308A (en) * 1988-10-17 1990-01-09 Gaunt Ray P Bowling ball and finger insert thereof
US5498209A (en) * 1995-05-19 1996-03-12 Arutunian; Tom Auto-adjusting finger inserts for a bowling ball
US5536212A (en) * 1994-11-21 1996-07-16 Tryon; David H. Adjustable thumb hole insert for bowling balls
US5601385A (en) * 1994-11-14 1997-02-11 Brunswick Bowling & Billiards Apparatus for fitting and drilling bowling balls
US5647702A (en) * 1994-11-14 1997-07-15 Brunswick Bowling & Billiards Corporation Apparatus for drilling variable size holes in bowling ball
US20040043823A1 (en) * 2002-08-27 2004-03-04 Scott Haisley Bowling ball hole insert
US9387364B2 (en) 2013-10-28 2016-07-12 Jerome M. Penxa Interchangeable bowling finger insert apparatus
US11202937B2 (en) 2018-04-23 2021-12-21 Jopo Grips, Llc Interchangeable bowling apparatus

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2210528A (en) * 1940-03-16 1940-08-06 Frank M Darby Bowling ball
US2372958A (en) * 1943-03-30 1945-04-03 Keith Glenn Bowling ball
US2372959A (en) * 1943-04-10 1945-04-03 Keith Glenn Bowling ball

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2210528A (en) * 1940-03-16 1940-08-06 Frank M Darby Bowling ball
US2372958A (en) * 1943-03-30 1945-04-03 Keith Glenn Bowling ball
US2372959A (en) * 1943-04-10 1945-04-03 Keith Glenn Bowling ball

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4416452A (en) * 1981-12-30 1983-11-22 Heimbigner Donald L Bowling ball finger grip insert
US4432546A (en) * 1982-09-20 1984-02-21 Allen Jr Bernard D Finger insert for bowling balls
US4560162A (en) * 1984-12-20 1985-12-24 Miller Peter J Adjustable grip for bowling ball
US4892308A (en) * 1988-10-17 1990-01-09 Gaunt Ray P Bowling ball and finger insert thereof
US5601385A (en) * 1994-11-14 1997-02-11 Brunswick Bowling & Billiards Apparatus for fitting and drilling bowling balls
US5647702A (en) * 1994-11-14 1997-07-15 Brunswick Bowling & Billiards Corporation Apparatus for drilling variable size holes in bowling ball
US5536212A (en) * 1994-11-21 1996-07-16 Tryon; David H. Adjustable thumb hole insert for bowling balls
US5498209A (en) * 1995-05-19 1996-03-12 Arutunian; Tom Auto-adjusting finger inserts for a bowling ball
US20040043823A1 (en) * 2002-08-27 2004-03-04 Scott Haisley Bowling ball hole insert
US7074130B2 (en) * 2002-08-27 2006-07-11 Scott Haisley Bowling ball hole insert
US9387364B2 (en) 2013-10-28 2016-07-12 Jerome M. Penxa Interchangeable bowling finger insert apparatus
US11202937B2 (en) 2018-04-23 2021-12-21 Jopo Grips, Llc Interchangeable bowling apparatus

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