US4511145A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reinforced hollow metal golf club head
Assignee: Topgolf Callaway Brands Corp
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Filing: 1983-07-18
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Granted: 1985-04-16
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Expires: 2003-07-18
Abstract
Abstract A hollow metal shell golf club head, has a ball striking front wall, a top wall, a bottom wall and longitudinally spaced toe and heel walls. The head is characterized by: (a) said front wall having front side, and a rear side exposed to the hollow interior of the head, (b) and a metallic ridge integral with said front wall and extending longitudinally and downwardly from a central region of the front wall and adjacent said rear side thereof to transfer ball impact loading to at least one of said toe and heel walls.
Inventors
- 👤 Glenn H. Schmidt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:51
CPC Classifications
A; A63; A63B; A63B53/00; A63B53/04; A63B53/045; A63B53/0454; A63B53/0466; A63B60/00
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
171 words
In a hollow metallic golf club head having a ball striking front wall, a top wall, a bottom wall, and longitudinally spaced toe and heel walls, the improvement comprising (a) said front wall having a front side, and a rear side exposed to the hollow interior of the head, (b) and a metallic ridge in the form of an arch integral with said front wall and extending longitudinally and downwardly adjacent said front wall from a central region of the front wall and adjacent said rear side thereof to transfer ball impact loading to said toe and heel walls, (c) said ridge having the form of a rib with opposite end portions, and upper, rear and lower surfaces each of which is arched upwardly throughout the major lengthwise extent of the rib between said opposite end portions, said opposite end portions approaching said toe and heel walls increasing substantially in forward and rearward thickness, whereby the rib has compound arching configuration for impact load transfer to said toe and heel walls.
Claim 2
Dependent Claim
171 words
In a hollow metallic golf club head having a ball striking front wall, a top wall, a bottom wall, and longitudinally spaced toe and heel walls, the improvement comprising (a) said front wall having a front side, and a rear side exposed to the hollow interior of the head, (b) and a metallic ridge in the form of an arch integral with said front wall and extending longitudinally and downwardly adjacent said front wall from a central region of the front wall and adjacent said rear side thereof to transfer ball impact loading to said toe and heel walls, (c) said ridge having the form of a rib with opposite end portions, and upper, rear and lower surfaces each of which is arched upwardly throughout the major lengthwise extent of the rib between said opposite end portions, said opposite end portions approaching said toe and heel walls increasing substantially in forward and rearward thickness, whereby the rib has compound arching configuration for impact load transfer to said toe and heel walls.
Claim 3
Dependent Claim
14 words
The improvement of claim 1 wherein said ridge extends everywhere adjacent said front wall.
Claim 4
Dependent Claim
44 words
The improvement of claim 2 wherein said ridge merges endwise with said head proximate the juncture of said bottom wall with each of the toe and heel walls, the top of the ridge located rearward of the sweet spot associated with the front wall.
Claim 5
Dependent Claim
27 words
The improvement of claim 1 wherein said bottom wall includes a sole plate welded to the head, and said ridge is everywhere spaced from said sole plate.
Claim 6
Dependent Claim
11 words
The improvement of claim 1 wherein said ridge has helical configuration.
Claim 7
Dependent Claim
18 words
The improvement of claim 1 including additional ribbing integral with said front wall and associated with said ridge.
Claim 8
Dependent Claim
12 words
The improvement of claim 1 wherein said ridge undulates along its length.
References Cited (Backward Citations)
GB1476889A
Cited
GB2100993A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-04-15 | 1988-10-15 | 1989-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-04-15 | 1992-10-15 | 1993-04-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-04-15 | 1996-10-15 | 1997-04-16 | $7700.00 | Window Closed / Lapsed |