US5454563A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Golf club
Assignee: Yamaha Corp
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Filing: 1994-07-12
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Granted: 1995-10-03
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Expires: 2014-07-12
Abstract
Abstract In construction of a golf club in which a shaft is fixed along its lower tip to a main body within a shaft hole formed in a hosel of the main body, an elongated cylindrical core is inserted into the lower tip of the shaft whilst projecting beyond the upper end location of the hosel. Presence of the cylindrical core well fortifies a shaft/hosel joint whilst withstanding impact is generated at shooting balls.
Inventors
- 👤 Itsushi Nagamoto
- 👤 Atsushi Tsuchida
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 08:26
CPC Classifications
A; A63; A63B; A63B53/00; A63B53/02; A63B60/00
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
100 words
A golf club, comprising: a hosel at one end of a main body of said golf club and provided with a shaft hole; a shaft having a lower tip inserted into said shaft hole in said hosel; an elongated cylindrical core inserted into said lower tip of said shaft while extending upwards beyond an upper end of said hosel, said cylindrical core having annular serrations formed on the outer surface thereof; and intermediate bond layers arranged between said lower tip of said shaft and said cylindrical core as well as between said lower tip of said shaft and said hosel.
Claim 2
Dependent Claim
100 words
A golf club, comprising: a hosel at one end of a main body of said golf club and provided with a shaft hole; a shaft having a lower tip inserted into said shaft hole in said hosel; an elongated cylindrical core inserted into said lower tip of said shaft while extending upwards beyond an upper end of said hosel, said cylindrical core having annular serrations formed on the outer surface thereof; and intermediate bond layers arranged between said lower tip of said shaft and said cylindrical core as well as between said lower tip of said shaft and said hosel.
Claim 3
Dependent Claim
39 words
A golf club as claimed in claim 1 in which said elongated cyllndrical core extends beyond a lower end of said hosel and has a lower end fixed to an inner wall of a sole of said main body.
Claim 4
Dependent Claim
34 words
A golf club as claimed in claim 1 in which a lower end of said elongated cylindrical core terminates at a lower end of said shaft hole and is fixed to said shaft hole.
Claim 5
Dependent Claim
33 words
A golf club as claimed in claim 1 in which said cylindrical core is made of a material selected from the group consisting of metals, fiber reinforced plastics and high tenacity synthetic resins.
Claim 6
Dependent Claim
22 words
A golf club as claimed in claim 1, in which a lower end of said cylindrical core is fixed to said hosel.
References Cited (Backward Citations)
US1643754A
Cited
GB341749A
Cited
US1958032A
Cited
US2121387A
Cited
US2093837A
Cited
US3572709A
Cited
US3907446A
Cited
US3873090A
Cited
US4417731A
Cited
US4438931A
Cited
US5226652A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1998-10-02 | 1999-04-03 | 1999-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-10-02 | 2003-04-03 | 2003-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-10-02 | 2007-04-03 | 2007-10-03 | $7700.00 | Window Closed / Lapsed |