Patent US4826172A successfully refreshed from Google Patents.
US4826172A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Golf club head
Assignee: Individual
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Filing: 1987-03-12
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Granted: 1989-05-02
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Expires: 2007-03-12
Abstract
Abstract A perimeter weighted iron-type golf club head with a recessed or cavity back (22) and a peripheral mass (24) having an improved weight configuration formed of weight members (30,32) within the cavity which are positioned adjacent to and on opposite sides of the center of percussion (P) of the golf club head and located between the center of percussion and the peripheral mass of the golf club head.
Inventors
- 👤 Anthony J. Antonious
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:42
CPC Classifications
A; A63; A63B; A63B53/00; A63B53/04; A63B53/0458; A63B53/047; A63B60/00; A63B53/0437; A63B53/0441; A63B53/045; A63B53/0454
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
245 words
A weighting system for an iron type golf club head including a hosel, a heel, a toe, a bottom sole, a top ridge, a rear surface including a rear upper surface and a rear lower surface, a ball striking face having a center of percussion, a peripheral mass formed on said rear surface adjacent at least said heel, toe, and bottom sole of said club head on the outer periphery thereof, said peripheral mass defining a cavity formed within said peripheral mass, said cavity having a bottom planar in shape and forming an inner rear lower surface behind said ball striking face, the outer rear edge of said peripheral mass forming an outer rear surface; and at least two opposing weight members extending from said rear upper surface to said lower rear surface and being located apart from and on opposite sides of said center of percussion between said center of percussion and opposing sides of said peripheral mass, said weight members being futher characterized by being located on said inner rear lower surface and extending between said rear lower surface and said rear upper surface of said club head, said weight members projecting above said inner rear lower surface of said cavity to at least said outer rear surface located on said peripheral mass and providing a stabilizing means between said center of percussion and said peripheral mass for providing improved energy transfer to a golf ball being struck off the center of percussion.
Claim 2
Dependent Claim
245 words
A weighting system for an iron type golf club head including a hosel, a heel, a toe, a bottom sole, a top ridge, a rear surface including a rear upper surface and a rear lower surface, a ball striking face having a center of percussion, a peripheral mass formed on said rear surface adjacent at least said heel, toe, and bottom sole of said club head on the outer periphery thereof, said peripheral mass defining a cavity formed within said peripheral mass, said cavity having a bottom planar in shape and forming an inner rear lower surface behind said ball striking face, the outer rear edge of said peripheral mass forming an outer rear surface; and at least two opposing weight members extending from said rear upper surface to said lower rear surface and being located apart from and on opposite sides of said center of percussion between said center of percussion and opposing sides of said peripheral mass, said weight members being futher characterized by being located on said inner rear lower surface and extending between said rear lower surface and said rear upper surface of said club head, said weight members projecting above said inner rear lower surface of said cavity to at least said outer rear surface located on said peripheral mass and providing a stabilizing means between said center of percussion and said peripheral mass for providing improved energy transfer to a golf ball being struck off the center of percussion.
Claim 3
Dependent Claim
16 words
The weighting system of claim 1 wherein said elongated elements are spaced from the rear surface.
Claim 4
Dependent Claim
192 words
An iron type golf club head having an improved weighting system, said club head having a hosel, a heel, a toe, a bottom, an upper surface, a lower surface, a rear, a ball striking face, and a center of percussion; said weighting system comprising a peripheral mass formed on the rear of said club head said peripheral mass being located on at least the heel, toe, and lower surface of said club head, said peripheral mass defining a cavity at the rear of said club head; said weighting system further including a pair of vertically disposed weight members located on the rear of said club head and on opposite sides of said center of percussion between the center of percussion and the opposing sides of said peripheral mass, said weight members being spaced from said center of percussion and said peripheral mass and extending from said peripheral mass at said lower surface upwardly to said upper surface of said club head, said weight members providing a stabilizing means between said center of percussion and said peripheral mass for providing improved energy transfer to a golf ball struck off the center of percussion.
Claim 5
Dependent Claim
192 words
An iron type golf club head having an improved weighting system, said club head having a hosel, a heel, a toe, a bottom, an upper surface, a lower surface, a rear, a ball striking face, and a center of percussion; said weighting system comprising a peripheral mass formed on the rear of said club head said peripheral mass being located on at least the heel, toe, and lower surface of said club head, said peripheral mass defining a cavity at the rear of said club head; said weighting system further including a pair of vertically disposed weight members located on the rear of said club head and on opposite sides of said center of percussion between the center of percussion and the opposing sides of said peripheral mass, said weight members being spaced from said center of percussion and said peripheral mass and extending from said peripheral mass at said lower surface upwardly to said upper surface of said club head, said weight members providing a stabilizing means between said center of percussion and said peripheral mass for providing improved energy transfer to a golf ball struck off the center of percussion.
Claim 6
Dependent Claim
21 words
The golf club head of claim 3 wherein said weight members form the furthermost rear surface of said golf club head.
Claim 7
Dependent Claim
170 words
An iron type golf club head with an improved weighting configuration including a hosel, a heel, a toe, an upper surface, a lower surface, a rear surface, a ball striking face, and a center of percussion characterized by a plurality of cavities formed in said rear surface; said plurality of cavities including a first cavity being located adjacent said heel, a second cavity being located adjacent said toe, and a third cavity centrally located rearwardly of said center of percussion, said cavities being formed by peripheral masses on at least said heel, said toe and said lower surface portions of the outer periphery of said rear surface of the club head, and a pair of vertically disposed masses extending between said upper surface and said lower surface, said vertical masses being further defined by one of said vertical masses being located between said center of percussion and said toe and the second of said vertical masses being located between said center of percussion and said heel of said club head.
Claim 8
Dependent Claim
170 words
An iron type golf club head with an improved weighting configuration including a hosel, a heel, a toe, an upper surface, a lower surface, a rear surface, a ball striking face, and a center of percussion characterized by a plurality of cavities formed in said rear surface; said plurality of cavities including a first cavity being located adjacent said heel, a second cavity being located adjacent said toe, and a third cavity centrally located rearwardly of said center of percussion, said cavities being formed by peripheral masses on at least said heel, said toe and said lower surface portions of the outer periphery of said rear surface of the club head, and a pair of vertically disposed masses extending between said upper surface and said lower surface, said vertical masses being further defined by one of said vertical masses being located between said center of percussion and said toe and the second of said vertical masses being located between said center of percussion and said heel of said club head.
Claim 9
Dependent Claim
52 words
The club head of claim 5 where a first of said vertically disposed masses is located between said first cavity adjacent said heel and said third cavity centrally located and a second of said vertically disposed masses is located between said second cavity adjacent said toe and said third cavity centrally located.
Claim 10
Dependent Claim
26 words
The weighting system of claim 5 wherein said vertical masses extend from the bottom of the cavity beyond the top surface of the golf club head.
Claim 11
Dependent Claim
214 words
A weighting system for an iron type golf club head including a hosel, a heel, a toe, an upper surface, a lower surface, a rear surface, ball striking face, a complementary rear face, and a center of percussion; the weighting system comprising: a peripheral mass formed on at least the heel, toe and lower surface portions of the outer periphery of the rear surface of the club head, said peripheral mass defining a cavity at the rear surface of the club head and providing a perimeter weighting for the club head; and at least two opposing weight members formed on the rear surface of the club head and extending outwardly from said rear surface to at least the rearmost outer surface of said peripheral mass, the respective opposing weight members being located on opposite sides of and spaced from the center of percussion, one weight member being positioned between and spaced from the center of percussion and the toe portion of said peripheral mass, the second opposing weight member being positioned between and spaced from the center of percussion and the heel portion of said peripheral mass, said first and second weight members providing a mass for improved club head stabilization and energy transfer to a golf ball struck off the center of percussion.
Claim 12
Dependent Claim
214 words
A weighting system for an iron type golf club head including a hosel, a heel, a toe, an upper surface, a lower surface, a rear surface, ball striking face, a complementary rear face, and a center of percussion; the weighting system comprising: a peripheral mass formed on at least the heel, toe and lower surface portions of the outer periphery of the rear surface of the club head, said peripheral mass defining a cavity at the rear surface of the club head and providing a perimeter weighting for the club head; and at least two opposing weight members formed on the rear surface of the club head and extending outwardly from said rear surface to at least the rearmost outer surface of said peripheral mass, the respective opposing weight members being located on opposite sides of and spaced from the center of percussion, one weight member being positioned between and spaced from the center of percussion and the toe portion of said peripheral mass, the second opposing weight member being positioned between and spaced from the center of percussion and the heel portion of said peripheral mass, said first and second weight members providing a mass for improved club head stabilization and energy transfer to a golf ball struck off the center of percussion.
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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) | 1992-05-01 | 1992-10-31 | 1993-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-05-01 | 1996-10-31 | 1997-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-05-01 | 2000-10-31 | 2001-05-02 | $7700.00 | Window Closed / Lapsed |