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US3873090A Expired / Lapsed US ⏱️ 0.0 years remaining

Graphite shaft connection to golf club hosel

Assignee: Topgolf Callaway Brands Corp
•
Filing: 1973-12-17
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Granted: 1975-03-25
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Expires: 1993-12-17
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Abstract

Abstract A tubular graphite containing shaft is connected to a metallic hosel, or the like. The hosel contains a bore, a pin is received in the hosel and shaft bores, and a sleeve fits over the hosel and shaft to bridge the ends thereof and to extend beyond the end of the pin in the graphite shaft bore typically, the pin and sleeve are bond connected to the hosel and shaft, as via a cured, flexible, bonding agent.

Inventors

  • 👤 Stanley C Thompson

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-31 05:36
CPC Classifications
A; A63; A63B; A63B53/00; A63B53/02

Claims Analysis

Total Claims: 7
Claim 1
Independent Claim 265 words
In a sports implement having a shaft, hosel, and means connecting said shaft to said hosel, comprising: said shaft being tubular and made from graphite fibers and resin, said hosel extending from the head of the sports implement for a predetermined first distance and a predetermined first outer diameter, a hosel step shoulder formed at the end of said predetermined first distance, said hosel extending from said shoulder a second predetermined distance and a second predetermined outer diameter less than said first outer diameter and terminating in an end surface, a bore formed in said second predetermined distance hosel portion and extending from said end surface inwardly thereinto to a predetermined distance less than said second predetermined distance, said Connecting means including a uniform diameter solid pin closely received in and adhesively bonded to the hosel bore wall, said pin occupying substantially the entire length of said bore and extending outwardly beyond said end surface a distance approximately equal to said predetermined distance, said shaft being positioned over and adhesively bonded to substantially the entire exposed pin portion and in end-to-end relation to said hosel at said end surface, the outer surface of said shaft being aligned with said second predetermined outer diameter hosel portion, said connecting means further including a sleeve telescopically received over and adhesively bonded to the shaft and second predetermined distance hosel portion, said sleeve extending endwise beyond both ends of said pin, the hosel end of said sleeve terminating adjacent said hosel step shoulder, the outer surface of said sleeve being aligned with said first predetermined outer diameter hosel portion.
Claim 2
Dependent Claim 265 words
In a sports implement having a shaft, hosel, and means connecting said shaft to said hosel, comprising: said shaft being tubular and made from graphite fibers and resin, said hosel extending from the head of the sports implement for a predetermined first distance and a predetermined first outer diameter, a hosel step shoulder formed at the end of said predetermined first distance, said hosel extending from said shoulder a second predetermined distance and a second predetermined outer diameter less than said first outer diameter and terminating in an end surface, a bore formed in said second predetermined distance hosel portion and extending from said end surface inwardly thereinto to a predetermined distance less than said second predetermined distance, said Connecting means including a uniform diameter solid pin closely received in and adhesively bonded to the hosel bore wall, said pin occupying substantially the entire length of said bore and extending outwardly beyond said end surface a distance approximately equal to said predetermined distance, said shaft being positioned over and adhesively bonded to substantially the entire exposed pin portion and in end-to-end relation to said hosel at said end surface, the outer surface of said shaft being aligned with said second predetermined outer diameter hosel portion, said connecting means further including a sleeve telescopically received over and adhesively bonded to the shaft and second predetermined distance hosel portion, said sleeve extending endwise beyond both ends of said pin, the hosel end of said sleeve terminating adjacent said hosel step shoulder, the outer surface of said sleeve being aligned with said first predetermined outer diameter hosel portion.
Claim 3
Dependent Claim 16 words
The combination of claim 1 wherein the adhesive bond material consists of a cured, flexible epoxide.
Claim 4
Dependent Claim 22 words
The combination of claim 1 wherein said pin consists of a metal having a specific gravity substantially less than that of steel.
Claim 5
Dependent Claim 12 words
The combination of claim 3 wherein said pin metal consists of aluminum.
Claim 6
Dependent Claim 13 words
The combination of claim 1 wherein the sports implement comprises a golf club.
Claim 7
Dependent Claim 45 words
The combination of claim 1 including an identifying ring inserted between the hosel end of said sleeve and said hosel step shoulder, the outer surface of said ring being aligned with said outer surface of said sleeve and said first predetermined outer diameter hosel portion.

References Cited (Backward Citations)

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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) 1978-03-24 1978-09-23 1979-03-25 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1982-03-24 1982-09-23 1983-03-25 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1986-03-24 1986-09-23 1987-03-25 $7700.00 Window Closed / Lapsed

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