US4284276A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Grooved golf ball
Assignee: Individual
•
Filing: 1980-02-13
•
Granted: 1981-08-18
•
Expires: 2000-02-13
Abstract
Abstract A golf ball is shown with an outer surface that is substantially covered with a plurality of spaced dimples that give the ball a suitable long and predictable flight pattern for wood or iron shots due to imparting an increased lift to the ball when the ball is given a backspin. Several modifications of the invention are shown. One or more elongated grooves are formed on the outer surface of the ball for interlocking with grooves that are formed in the face of a golf club so as to increase the grip as well as achieve more "hang time" for a given amount of backspin of the ball. Another modification has a cluster of grooves that is spaced about 90° from the manufacturer's brand name indicia that is marked on the ball. The preferred modification has a continuous band of grooves that encircles the ball and increases the amount of backspin the ball will have leaving the tee which will improve the trajectory or "hang time" of the driven ball. Moreover, the use of the grooves improve the aerodynamics of the ball in flight by causing more air turbulence and thereby increasing the lift of the ball.
Inventors
- 👤 Joseph C. Worst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 03:02
CPC Classifications
A; A63; A63B; A63B37/00; A63B37/0003; A63B37/0004; A63B37/0007; A63B37/0011; A63B37/0006; A63B37/0009; A63B37/0018; A63B37/0021; A63B37/007; A63B37/0072; A63B37/0074
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
106 words
A golf ball in the shape of a sphere having in its outer surface a plurality of spaced dimples which substantially cover the outer surface, the invention comprising: a. at least one elongated groove on the outer surface of the ball which encompasses at least two of the said dimples for use in interlocking with the striking face of a golf club; b. the groove having a transverse width dimension substantially the same as the width of a dimple; c. the groove having a generally uniform transverse cross section substantially the same as the transverse cross section of a dimple; d. the groove having reduced ends.
Claim 2
Dependent Claim
106 words
A golf ball in the shape of a sphere having in its outer surface a plurality of spaced dimples which substantially cover the outer surface, the invention comprising: a. at least one elongated groove on the outer surface of the ball which encompasses at least two of the said dimples for use in interlocking with the striking face of a golf club; b. the groove having a transverse width dimension substantially the same as the width of a dimple; c. the groove having a generally uniform transverse cross section substantially the same as the transverse cross section of a dimple; d. the groove having reduced ends.
Claim 3
Dependent Claim
75 words
The invention as recited in claim 1, wherein there are a plurality of grooves that are generally parallel to each other, and the minimum distance between the longitudinal axes of adjacent grooves is substantially equal to the mean center to center distance between adjacent rows of dimples, and the maximum distance between the longitudinal axes of adjacent grooves is substantially equal to three times the mean center to center distance between adjacent rows of dimples.
Claim 4
Dependent Claim
35 words
The invention as recited in claim 1 wherein an indicia is marked on the outer surface of the ball, the center of said indicia being substantially spaced about 90° from the center of the groove.
Claim 5
Dependent Claim
83 words
The invention as recited in claim 1 wherein there are a plurality of grooves that are generally parallel to each other, and the minimum length of the grooves is defined as being substantially equal to the mean center to center distance between adjacent dimples plus one mean diameter of a dimple, while the maximum length of the grooves is defined as being substantially equal to three times the mean center to center distance between adjacent dimples plus one mean diameter of a dimple.
Claim 6
Dependent Claim
20 words
The invention as recited in claim 4 wherein the grooves form a continuous band around the circumference of the ball.
Claim 7
Dependent Claim
34 words
The invention as recited in claims 2 or 4 wherein the grooves extend in a comtinuous band around the circumference of the ball, there being a mixture of both minimum and maximum length grooves.
Claim 8
Dependent Claim
20 words
The invention as recited in claim 4 wherein the grooves are each substantially positioned within a continuous row of dimples.
Claim 9
Dependent Claim
34 words
The invention as recited in claims 2 or 4 wherein the grooves form a continuous band around the circumference of the ball, and dimples are spaced between at least some of the adjacent grooves.
Claim 10
Dependent Claim
55 words
The invention as recited in claims 2 or 4 wherein a cluster of about four grooves are centered on a great circle of the ball, and an indicia is marked on the outer surface of the ball, the center of said indicia being substantially spaced about 90° from the center of the cluster of grooves.
Claim 11
Dependent Claim
76 words
The invention as recited in claims 2 or 4 wherein a cluster of about four grooves are centered on a great circle of the ball, and an indicia is marked on the outer surface of the ball, the center of said indicia being substantially spaced about 90° from the center of the cluster of grooves, there being two clusters of grooves located on generally diametrically opposite sides of the ball to form a configuration of symmetry.
Claim 12
Dependent Claim
41 words
The invention as recited in claims 2 or 4 wherein the grooves form a continuous band around the circumference of the ball, and where certain grooves are of generally straight lengths while the remainder of the grooves have a chevron-like shape.
Claim 13
Dependent Claim
126 words
A golf ball in the shape of a sphere having in its outer surface a plurality of spaced dimples which substantially cover the outer surface, the invention comprising: a. at least one elongated groove arranged within a continuous row of dimples and encompassing at least two of said dimples; b. the groove having a transverse width dimension substantially the same as the width of a dimple; c. the groove having a generally uniform transverse cross section that is substantially the same as the transverse cross section of a dimple; d. the groove having rounded ends; e. the bottom surface of the groove being generally concentric with the circumference of the ball; f. the groove having a length that is less than the circumference of the ball.
Claim 14
Dependent Claim
126 words
A golf ball in the shape of a sphere having in its outer surface a plurality of spaced dimples which substantially cover the outer surface, the invention comprising: a. at least one elongated groove arranged within a continuous row of dimples and encompassing at least two of said dimples; b. the groove having a transverse width dimension substantially the same as the width of a dimple; c. the groove having a generally uniform transverse cross section that is substantially the same as the transverse cross section of a dimple; d. the groove having rounded ends; e. the bottom surface of the groove being generally concentric with the circumference of the ball; f. the groove having a length that is less than the circumference of the ball.
Claim 15
Dependent Claim
51 words
The invention as recited in claims 1 or 11 wherein there are a plurality of grooves that form a continuous band around the circumference of the ball, certain of the grooves being rectilinear and generally parallel to each other, while other grooves are non-linear while being generally parallel to each other.
Claim 16
Dependent Claim
35 words
The invention as recited in claims 1 or 11 wherein there are a plurality of grooves that form a band around the circumference of the ball, certain of the grooves being offset from adjacent grooves.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-08-17 | 1985-02-16 | 1985-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-08-17 | 1989-02-16 | 1989-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-08-17 | 1993-02-16 | 1993-08-18 | $7700.00 | Window Closed / Lapsed |