US4324404A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Golf putter
Assignee: WALTER DIAN Inc
•
Filing: 1980-05-19
•
Granted: 1982-04-13
•
Expires: 2000-05-19
Abstract
Abstract A golf club putter is provided with a head having an elongated rod-like weight extending transversely of the axis of the club shaft in a front to rear direction with a ball impacting front face and toe and heel wings radiating from diametrically opposite sides of the transversely extending weight rod each with bottom faces above the bottom of the weight rod to accommodate lateral rocking of the club throughout a wide angle without rubbing against the putting surface and turning the ball impacting face as the ball is impacted. The elongated transversely extending weight rod is visible to the golfer along its length to facilitate alignment of the club head with the desired putting line. The weight delivers a desired mallet or battering ram impact to the ball without requiring a large sole area on the putter head. The shaft extends from the upper portion of the weight ahead of the longitudinal mid-point thereof and preferably in front one-third of the length of the weight and is preferably positioned so that the putter face will be normal to the longitudinal axis of the shaft, with the shaft being inclined from the putter head so as to position the head a comfortable distance in front of a golfer grasping the grip of the shaft.
Inventors
- 👤 Walter Dian
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:29
CPC Classifications
A; A63; A63B; A63B53/00; A63B53/007; Y; Y10; Y10S; Y10S273/00; Y10S273/14
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
320 words
A golf club putter comprising an elongated shaft, a generally rectangular putter head on the end of said shaft having a front putting face, a relatively thick longitudinally extending central portion, and relatively thin toe and heel wings radiating laterally from said central portion with bottom surfaces at levels above the bottom of the central portion, said head having a width from about three to about four inches, a front to rear depth from about two to about three and one-half inches, said thick longitudinally extending central portion having a height from about three-quarters to about one and one-half inches at its transverse center, said toe and heel wings having a thickness from about three-eighths to about three-quarters inches, and said bottom surfaces of said wings being raised sufficiently above the longitudinal sole line of said central portion sufficiently to accommodate rocking of the head through an appreciable angle without contacting the wings against a putting surface, said head being formed of a transparent plastics material, an elongated heavy weight rod encased in said head extending longitudinally thereof in said thick central portion and visible through said transparent plastics material of the head, said rod having an end face flush with the front of said head with a diameter from about one-half to about one inch, said rod having a length from about two to about three inches, said rod providing from about 70 to about 90% of the total weight of said head, and said shaft being anchored in said rod in the front third of the rod and extending upwardly therefrom through said transparent plastics material whereby said length and weight of the rod provides a long radius of gyration extending from said end face of the rod near the rear end of the rod for increasing the "sweet spot" area of said end face of the rod without permitting the head and rod to turn upon impact.
Claim 2
Dependent Claim
320 words
A golf club putter comprising an elongated shaft, a generally rectangular putter head on the end of said shaft having a front putting face, a relatively thick longitudinally extending central portion, and relatively thin toe and heel wings radiating laterally from said central portion with bottom surfaces at levels above the bottom of the central portion, said head having a width from about three to about four inches, a front to rear depth from about two to about three and one-half inches, said thick longitudinally extending central portion having a height from about three-quarters to about one and one-half inches at its transverse center, said toe and heel wings having a thickness from about three-eighths to about three-quarters inches, and said bottom surfaces of said wings being raised sufficiently above the longitudinal sole line of said central portion sufficiently to accommodate rocking of the head through an appreciable angle without contacting the wings against a putting surface, said head being formed of a transparent plastics material, an elongated heavy weight rod encased in said head extending longitudinally thereof in said thick central portion and visible through said transparent plastics material of the head, said rod having an end face flush with the front of said head with a diameter from about one-half to about one inch, said rod having a length from about two to about three inches, said rod providing from about 70 to about 90% of the total weight of said head, and said shaft being anchored in said rod in the front third of the rod and extending upwardly therefrom through said transparent plastics material whereby said length and weight of the rod provides a long radius of gyration extending from said end face of the rod near the rear end of the rod for increasing the "sweet spot" area of said end face of the rod without permitting the head and rod to turn upon impact.
Claim 3
Dependent Claim
174 words
A golf club putter comprising an elongated shaft, a transparent rectangular head on said shaft having an upright front putting face, a substantial front to rear longitudinally extending depth, a thick longitudinally extending central portion with front to rear extending sides and relatively thin toe and heel wings of less height than said central portion radiating laterally from said sides and having bottom surfaces at levels above the bottom of said thick central portion, an elongated heavy weight rod encased in the thick longitudinally extending central portion of said head and extending longitudinally from said putting face in the front to rear direction and visible along the length thereof through said transparent head, said rod having an end flush with said upright putting face, said rod having a heavier mass below the longitudinal axis thereof than the mass above said axis positioned to counteract the effect of the shaft in changing the sweet spot, and said shaft being anchored in the front third of the rod and extending upwardly therefrom through said transparent head.
Claim 4
Dependent Claim
174 words
A golf club putter comprising an elongated shaft, a transparent rectangular head on said shaft having an upright front putting face, a substantial front to rear longitudinally extending depth, a thick longitudinally extending central portion with front to rear extending sides and relatively thin toe and heel wings of less height than said central portion radiating laterally from said sides and having bottom surfaces at levels above the bottom of said thick central portion, an elongated heavy weight rod encased in the thick longitudinally extending central portion of said head and extending longitudinally from said putting face in the front to rear direction and visible along the length thereof through said transparent head, said rod having an end flush with said upright putting face, said rod having a heavier mass below the longitudinal axis thereof than the mass above said axis positioned to counteract the effect of the shaft in changing the sweet spot, and said shaft being anchored in the front third of the rod and extending upwardly therefrom through said transparent head.
Claim 5
Dependent Claim
36 words
The putter of claim 2, wherein said rod has a radius of gyration extending from said upright end thereof to adjacent its rear end of about one and three-quarters inches to about three inches in length.
Claim 6
Dependent Claim
16 words
The putter of claim 2, wherein said shaft extends perpendicular to the axis of said rod.
References Cited (Backward Citations)
US645944A
Cited
US1064916A
Cited
US1454267A
Cited
US1530952A
Cited
US1652404A
Cited
US1703199A
Cited
US1918179A
Cited
US2346617A
Cited
US2460435A
Cited
GB727051A
Cited
US3399898A
Cited
GB1209466A
Cited
US3873094A
Cited
US3758115A
Cited
US3819180A
Cited
US3866922A
Cited
US4173343A
Cited
US4222566A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-04-12 | 1985-10-12 | 1986-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-04-12 | 1989-10-12 | 1990-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-04-12 | 1993-10-12 | 1994-04-13 | $7700.00 | Window Closed / Lapsed |