Patent US4423873A successfully refreshed from Google Patents.
US4423873A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Golf club putter arrangement
Assignee: Individual
•
Filing: 1980-03-11
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Granted: 1984-01-03
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Expires: 2000-03-11
Abstract
Abstract A golf club arrangement provided with indicia means to aid in the reading of the break of a green. The shaft of the golf club has a slot extending in the longitudinal direction which is either left open or filled with a distortion free transparent filler having parallel planar surfaces on opposite sides of the shaft. A square tubular shaft allows a maximization of the width of the slot to aid in the use of the indicia means. A cross hair intersects the indicia means at right angles to facilitate the positioning of the club. When the green is observed through the slot and compared to the indicia means, both the break in the green due to the natural lie of the grass and the overall slope of the green may be determined.
Inventors
- 👤 Yukio Shiratori
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 06:03
CPC Classifications
A; A63; A63B; A63B69/00; A63B69/36; A63B69/3676; A63B69/3685; A63B57/00; A63B69/3623; A63B69/3632; Y; Y10; Y10S; Y10S273/00; Y10S273/14
Claims Analysis
Total Claims: 30
Claim 1
Independent Claim
194 words
In a golf club, the improvement comprising, in combination: a club head; an elongated longitudinally extending shaft means having a first end coupled to said club head, and a second end; a grip means coupled to said second end of said shaft means; said shaft means having: a predetermined longitudinal axis extending between said grip means and said club head; a peripheral surface spaced from said longitudinal axis; planar walls in planes parallel to each other and parallel to said longitudinal axis defining a slot extending through said shaft means for a predetermined longitudinal length intermediate said club head and said grip means and said walls at least alignable in a vertical orientation for viewing through said slot and providing visual indicia means; a front intersection at one intersection of said walls of said slot with said peripheral surface; a rear intersection spaced from said front intersection and at another intersection of said walls of said slot with said peripheral surface; and opaque indicia means on said shaft means and in said slot and viewable through said slot, and said opaque indicia means alignable in vertical and perpendicular orientations for viewing through said slot.
Claim 2
Dependent Claim
194 words
In a golf club, the improvement comprising, in combination: a club head; an elongated longitudinally extending shaft means having a first end coupled to said club head, and a second end; a grip means coupled to said second end of said shaft means; said shaft means having: a predetermined longitudinal axis extending between said grip means and said club head; a peripheral surface spaced from said longitudinal axis; planar walls in planes parallel to each other and parallel to said longitudinal axis defining a slot extending through said shaft means for a predetermined longitudinal length intermediate said club head and said grip means and said walls at least alignable in a vertical orientation for viewing through said slot and providing visual indicia means; a front intersection at one intersection of said walls of said slot with said peripheral surface; a rear intersection spaced from said front intersection and at another intersection of said walls of said slot with said peripheral surface; and opaque indicia means on said shaft means and in said slot and viewable through said slot, and said opaque indicia means alignable in vertical and perpendicular orientations for viewing through said slot.
Claim 3
Dependent Claim
16 words
The arrangement defined in claim 1 wherein said indicia means is coincident with said longitudinal axis.
Claim 4
Dependent Claim
16 words
The arrangement defined in claim 1 wherein said indicia means is spaced from said longitudinal axis.
Claim 5
Dependent Claim
17 words
The arrangement defined in claim 1 wherein said peripheral surface of said shaft means is substantially cylindrical.
Claim 6
Dependent Claim
36 words
The arrangement defined in claim 1 wherein said peripheral surface of said shaft means in at least a portion of said shaft means adjacent and including said slot is substantially an equilateral quadrilateral right regular prism.
Claim 7
Dependent Claim
16 words
The arrangement defined in claim 5 wherein said equilateral quadrilateral right regular prism is right angular.
Claim 8
Dependent Claim
117 words
The arrangement defined in claim 5 and further comprising: a transparent means substantially filling said slot; said transparent means having: a front planar surface on at least a portion of said transparent means adjacent said front intersection; a rear planar surface on at least a portion of said transparent means adjacent said rear intersection; and said front planar surface parallel and aligned with said rear planar surface; said opaque indicia means on one of said front planar surface and said rear planar surface and lying in a plane containing said longitudinal axis; and a cross hair at right angles to said opaque indicia means and on one of said front planar surface and said rear planar surface.
Claim 9
Dependent Claim
21 words
The arrangement defined in claim 1 and further comprising a cross hair extending at right angles to said opaque indicia means.
Claim 10
Dependent Claim
220 words
In a golf club, the improvement comprising, in combination a club head; an elongated longitudinally extending shaft means having a first end coupled to said club head, and a second end; a grip means coupled to said second end of said shaft means; said shaft means having: a predetermined longitudinal axis extending between said grip means and said club head; a peripheral surface spaced from said longitudinal axis; planar walls in planes parallel to each other and parallel to said longitudinal axis defining a slot extending through said shaft means for a predetermined longitudinal length intermediate said club head and said grip means and said walls at least alignable in a vertical orientation for viewing through said slot and providing visual indicia means; a front intersection at one intersection of said walls of said slot with said peripheral surface; a rear intersection spaced from said front intersection and at another intersection of said walls of said slot with said peripheral surface; a transparent means substantially filling said slot; and said transparent means having: a front planar surface on at least a portion of said transparent means adjacent said front intersection; a rear planar surface on at least a portion of said transparent means adjacent said rear intersection; and said front planar surface parallel and aligned with said rear planar surface.
Claim 11
Dependent Claim
220 words
In a golf club, the improvement comprising, in combination a club head; an elongated longitudinally extending shaft means having a first end coupled to said club head, and a second end; a grip means coupled to said second end of said shaft means; said shaft means having: a predetermined longitudinal axis extending between said grip means and said club head; a peripheral surface spaced from said longitudinal axis; planar walls in planes parallel to each other and parallel to said longitudinal axis defining a slot extending through said shaft means for a predetermined longitudinal length intermediate said club head and said grip means and said walls at least alignable in a vertical orientation for viewing through said slot and providing visual indicia means; a front intersection at one intersection of said walls of said slot with said peripheral surface; a rear intersection spaced from said front intersection and at another intersection of said walls of said slot with said peripheral surface; a transparent means substantially filling said slot; and said transparent means having: a front planar surface on at least a portion of said transparent means adjacent said front intersection; a rear planar surface on at least a portion of said transparent means adjacent said rear intersection; and said front planar surface parallel and aligned with said rear planar surface.
Claim 12
Dependent Claim
35 words
The arrangement defined in claim 9 and further comprising opaque indicia means alignable in vertical and perpendicular orientations for viewing through said slot and on at least one of said front and rear planar surfaces.
Claim 13
Dependent Claim
17 words
The arrangement defined in claim 9 wherein said peripheral surface of said shaft means is substantially cylindrical.
Claim 14
Dependent Claim
35 words
The arrangement defined in claim 11 and further comprising opaque indicia means alignable in vertical and perpendicular orientations for viewing through said slot and on at least one of said front and rear planar surfaces.
Claim 15
Dependent Claim
20 words
The arrangement defined in claim 12 and further comprising cross hair extending at right angles to said opaque indicia means.
Claim 16
Dependent Claim
36 words
The arrangement defined in claim 9 wherein said peripheral surface of said shaft means in at least a portion of said shaft means adjacent and including said slot is substantially an equilateral quadrilateral right regular prism.
Claim 17
Dependent Claim
16 words
The arrangement defined in claim 14 wherein said equilateral quadrilateral right regular prism is right angular.
Claim 18
Independent Claim
120 words
A method for reading the break of a green due to the natural lie of the grass, which comprises: (a) providing a golf club having a shaft means and said shaft means having walls therein defining a slot therethrough, and said slot having indicia means; (b) positioning said shaft means in a location suitable for viewing through said slot the natural lie of the grass in the area of the projected ball trajectory; (c) holding said shaft means to provide said indicia means perpendicular to the plane of the green; (d) sighting the grass through said slot in the area of the projected ball trajectory to compare the angle of the lie of the grass to the said indicia means.
Claim 19
Independent Claim
120 words
A method for reading the break of a green due to the natural lie of the grass, which comprises: (a) providing a golf club having a shaft means and said shaft means having walls therein defining a slot therethrough, and said slot having indicia means; (b) positioning said shaft means in a location suitable for viewing through said slot the natural lie of the grass in the area of the projected ball trajectory; (c) holding said shaft means to provide said indicia means perpendicular to the plane of the green; (d) sighting the grass through said slot in the area of the projected ball trajectory to compare the angle of the lie of the grass to the said indicia means.
Claim 20
Dependent Claim
108 words
The method defined in claim 16 wherein said step of holding of said indicia means vertical to the plane of the green is achieved by utilizing a cross hair extending across said indicia means at right angles to said indicia means and equalizing the distance between a point on a first portion of the cross hair on a first side of said indicia means and a first point on the green with the distance between a point on a second portion of said cross hair on a second side of said indicia means opposite said first side of said indicia means and a second point on the green.
Claim 21
Independent Claim
117 words
A method for reading the break of a green due to the natural lie of the grass, which comprises: (a) providing a golf club having a shaft means and said shaft means having walls therein defining a slot therethrough, and said slot having indicia means; (b) positioning said shaft means in a location suitable for viewing through said slot the natural lie of the grass in the area of the projected ball trajectory; (c) holding said indicia means to a true vertical with respect to the earth; (d) sighting the grass through the said slot in the area of the projected ball trajectory to compare the angle of the lie of the grass to said indicia means.
Claim 22
Independent Claim
117 words
A method for reading the break of a green due to the natural lie of the grass, which comprises: (a) providing a golf club having a shaft means and said shaft means having walls therein defining a slot therethrough, and said slot having indicia means; (b) positioning said shaft means in a location suitable for viewing through said slot the natural lie of the grass in the area of the projected ball trajectory; (c) holding said indicia means to a true vertical with respect to the earth; (d) sighting the grass through the said slot in the area of the projected ball trajectory to compare the angle of the lie of the grass to said indicia means.
Claim 23
Dependent Claim
52 words
The method defined in claim 18, wherein the step of holding of said indicia means in a true vertical with respect to the earth is achieved by suspending said shaft means of said golf club to allow gravity to orient said indicia means in said true vertical with respect to the earth.
Claim 24
Independent Claim
180 words
A method for reading the break of a green due to the natural lie of the grass and the overall slope of the green, which comprises: (a) providing a golf club having a shaft means and said shaft means having walls therein definining a slot therethrough, and said slot having indicia means; (b) positioning said shaft means in a location suitable for viewing through said slot the natural lie of the grass and the overall slope of the green in the area of the projected ball trajectory; (c) holding said shaft means to provide said indicia means perpendicular to the plane of the green; (d) sighting the grass through said slot in the area of the projected ball trajectory to compare the angle of the lie of the grass to said indicia means; (e) holding said indicia means to a true vertical with respect to the earth; and (f) sighting of the overall slope of the green in the area of the projected ball trajectory to compare the angle of the overall slope of the green to said indicia means.
Claim 25
Independent Claim
180 words
A method for reading the break of a green due to the natural lie of the grass and the overall slope of the green, which comprises: (a) providing a golf club having a shaft means and said shaft means having walls therein definining a slot therethrough, and said slot having indicia means; (b) positioning said shaft means in a location suitable for viewing through said slot the natural lie of the grass and the overall slope of the green in the area of the projected ball trajectory; (c) holding said shaft means to provide said indicia means perpendicular to the plane of the green; (d) sighting the grass through said slot in the area of the projected ball trajectory to compare the angle of the lie of the grass to said indicia means; (e) holding said indicia means to a true vertical with respect to the earth; and (f) sighting of the overall slope of the green in the area of the projected ball trajectory to compare the angle of the overall slope of the green to said indicia means.
Claim 26
Dependent Claim
107 words
The method defined in claim 2 wherein said step of holding said indicia means vertical to the plane of the green is achieved by utilizing a cross hair extending across said indicia means at right angles to said indicia means and equalizing the distance between a point on a first portion of said cross hair on a first side of said indicia means and a first point on the green with the distance between a point on a second portion of said cross hair on a second side of said indicia means opposite said first side of said indicia means and a second point on the green.
Claim 27
Dependent Claim
46 words
The method defined in claim 21 wherein said step of holding said indicia means to a true vertical is achieved by suspending said shaft means of said golf club to allow gravity to orient said indicia means to a true vertical with respect to the earth.
Claim 28
Independent Claim
166 words
A method for reading the break of a green due to the natural lie of the grass and the overall slope of the green, which comprises: (a) providing a golf club having a shaft means and said shaft means having walls therein defining a slot therethrough, and said slot having indicia means; (b) positioning said shaft means in a location suitable for viewing through said slot the natural lie of the grass and the overall slope of the green in the area of the projected ball trajectory; (c) holding said indicia means to a true vertical with respect to the earth; (d) sighting the grass through said slot in the area of the projected ball trajectory to compare the angle of the lie of the grass to said indicia means; and (e) sighting of the overall slope of the green through said slot in the area of the projected ball trajectory to compare the angle of the overall slope of the green to said indicia means.
Claim 29
Independent Claim
166 words
A method for reading the break of a green due to the natural lie of the grass and the overall slope of the green, which comprises: (a) providing a golf club having a shaft means and said shaft means having walls therein defining a slot therethrough, and said slot having indicia means; (b) positioning said shaft means in a location suitable for viewing through said slot the natural lie of the grass and the overall slope of the green in the area of the projected ball trajectory; (c) holding said indicia means to a true vertical with respect to the earth; (d) sighting the grass through said slot in the area of the projected ball trajectory to compare the angle of the lie of the grass to said indicia means; and (e) sighting of the overall slope of the green through said slot in the area of the projected ball trajectory to compare the angle of the overall slope of the green to said indicia means.
Claim 30
Dependent Claim
44 words
The method defined in claim 23 wherein the step of holding said indicia means in a true vertical is achieved by suspending said shaft means of said golf club to allow gravity to orient said indicia means to said true vertical to the earth.
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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) | 1987-01-02 | 1987-07-04 | 1988-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-01-02 | 1991-07-04 | 1992-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-01-02 | 1995-07-04 | 1996-01-03 | $7700.00 | Window Closed / Lapsed |