Patent US725640A successfully refreshed from Google Patents.
US4465221A
Expired / Lapsed
US
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Method of sustaining metallic golf club head sole plate profile by confined brazing or welding
Assignee: Topgolf Callaway Brands Corp
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Filing: 1982-09-28
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Granted: 1984-08-14
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Expires: 2002-09-28
Abstract
Abstract A method of attaching a sole plate to a hollow metal golf club head by providing a dam integral with the head whereby a metallic melt is sustained around the periphery of the sole plate. The dam is later removed so that the sole plate and golf club head are the same height.
Inventors
- 👤 Glenn H. Schmidt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:11
CPC Classifications
B; B23; B23K; B23K33/00
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
190 words
In the method of sustaining a metallic golf club head sole profile, the head having a bottom wall defining an opening with a peripheral and undercut ledge extending about said opening to support a sole plate received into said opening and on the ledge surface, the head defining a hollow shell, the steps that include (a) providing a dam on and integral with the head bottom wall and of the same metal as said wall extending about said opening and to project outwardly to substantially greater extent than the sole plate when the sole plate is supported on said ledge surface, (b) joining the sole plate to the head by producing a metallic melt in a peripheral space extending at and about the sole plate periphery with the melt in contact with the ledge surface and to a melt thickness at least as thick as the sole plate, and employing the dam to confine the melt at the side of the dam proximate the sole plate, and (c) thereafter removing the dam by abrading same to the common level of outer surfaces defined by the sole plate and head wall.
Claim 2
Dependent Claim
190 words
In the method of sustaining a metallic golf club head sole profile, the head having a bottom wall defining an opening with a peripheral and undercut ledge extending about said opening to support a sole plate received into said opening and on the ledge surface, the head defining a hollow shell, the steps that include (a) providing a dam on and integral with the head bottom wall and of the same metal as said wall extending about said opening and to project outwardly to substantially greater extent than the sole plate when the sole plate is supported on said ledge surface, (b) joining the sole plate to the head by producing a metallic melt in a peripheral space extending at and about the sole plate periphery with the melt in contact with the ledge surface and to a melt thickness at least as thick as the sole plate, and employing the dam to confine the melt at the side of the dam proximate the sole plate, and (c) thereafter removing the dam by abrading same to the common level of outer surfaces defined by the sole plate and head wall.
Claim 3
Dependent Claim
15 words
The method of claim 1 wherein the sole plate and head consist of different metals.
Claim 4
Independent Claim
15 words
The method of one of claims 1 and 2 wherein the head consists of steel.
Claim 5
Independent Claim
16 words
The method of one of claims 1 and 2 wherein the sole plate consists of brass.
Claim 6
Independent Claim
22 words
The method of one of claims 1 and 2 wherein the head consists of steel and the sole plate consists of brass.
Claim 7
Dependent Claim
26 words
The method of claim 1 wherein the sole plate is provided with a thickness approximating that of the hollow head about the opening beyond the dam.
Claim 8
Dependent Claim
17 words
The method of claim 1 wherein said (c) step includes abrading solidified melt metal adjacent the dam.
Claim 9
Independent Claim
32 words
The method of one of claims 1 and 7 wherein said melt is produced by introducing braze compound into proximity with the inner side of the dam, and melting said braze compound.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-08-14 | 1988-02-13 | 1988-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-08-14 | 1992-02-13 | 1992-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-08-14 | 1996-02-13 | 1996-08-14 | $7700.00 | Window Closed / Lapsed |