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US3625513A Expired / Lapsed US ⏱️ 0.0 years remaining

Head-to-shaft connection for golf club

Assignee: Brunswick Corp
•
Filing: 1968-08-02
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Granted: 1971-12-07
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Expires: 1988-08-02
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Abstract

Abstract A head-to-shaft connection for a golf club wherein the end of the golf club shaft is inserted in the bore in the club head hosel and initially positioned therein by means of radial spacer elements, the shaft being secured in the bore by suitable cementitious means. After the cementing means sets, it also holds the club shaft in the desired position.

Inventors

  • 👤 James E Ballmer

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-30 06:35
CPC Classifications
A; A63; A63B; A63B53/00; A63B53/02; A63B60/00; A63B60/06; A63B60/16; A63B53/022; A63B53/023

Claims Analysis

Total Claims: 7
Claim 1
Independent Claim 258 words
A golf club head-to-shaft connection comprising; a golf club head including an upstanding hosel having a bore therein substantially larger than the head end of the shaft, said hosel bore having an open end and a closed end, said open end having a stepped configuration, a golf club shaft having a handle end portion and a head end portion, said head end portion being untapered and inserted in said hosel bore, means for positioning the untapered head end portion of the shaft within the hosel bore with thE exterior of the shaft set apart from the wall of the bore, said positioning means including first means located at said closed end and separate from said hosel for axially positioning the lower extremity of the shaft at the base of the hosel bore and apart from the walls of the hosel bore, and second means separate from said hosel for axially positioning the shaft at the said open end of the hosel bore, said second means fitting tightly about said shaft head end, said second means having a correspondingly stepped configuration as said open end for placement thereon, with said second-means step being substantially wider than said open-end step thereby positioning said shaft away from the walls of the hosel bore and bonding material disposed and filling the void between the head end portion of said shaft and the wall of the hosel bore so as to bond the entire outer surface of that portion of the shaft within the bore directly to the wall of the hosel bore.
Claim 2
Dependent Claim 258 words
A golf club head-to-shaft connection comprising; a golf club head including an upstanding hosel having a bore therein substantially larger than the head end of the shaft, said hosel bore having an open end and a closed end, said open end having a stepped configuration, a golf club shaft having a handle end portion and a head end portion, said head end portion being untapered and inserted in said hosel bore, means for positioning the untapered head end portion of the shaft within the hosel bore with thE exterior of the shaft set apart from the wall of the bore, said positioning means including first means located at said closed end and separate from said hosel for axially positioning the lower extremity of the shaft at the base of the hosel bore and apart from the walls of the hosel bore, and second means separate from said hosel for axially positioning the shaft at the said open end of the hosel bore, said second means fitting tightly about said shaft head end, said second means having a correspondingly stepped configuration as said open end for placement thereon, with said second-means step being substantially wider than said open-end step thereby positioning said shaft away from the walls of the hosel bore and bonding material disposed and filling the void between the head end portion of said shaft and the wall of the hosel bore so as to bond the entire outer surface of that portion of the shaft within the bore directly to the wall of the hosel bore.
Claim 3
Dependent Claim 54 words
The device of claim 1 wherein said shaft is hollow, and further including means to plug the open end of said hollow shaft, and wherein said plugging means comprises said first means for axially positioning the lower extremity of the shaft at the base of the hosel bore and apart from the wall thereof.
Claim 4
Dependent Claim 18 words
The device of claim 1 wherein the head end portion of said shaft is substantially cylindrical in shape.
Claim 5
Dependent Claim 48 words
The device of claim 1 wherein said closed end of the bore includes a shoulder, receiving thereon a portion of the distal end of the shaft, limiting the penetration of the shaft into the hosel bore, said shoulder being comprised of an annularly reduced area of the bore.
Claim 6
Dependent Claim 70 words
The device of claim 1 wherein the hosel bore is reduced in diameter below the shoulder, and wherein said means for axially positioning the bottom end of the shaft within and apart from the walls of the hosel bore comprises a plug having an upper portion embedded within the end of the shaft and a lower portion snugly received in the reduced area of the hosel bore below the shoulder.
Claim 7
Dependent Claim 49 words
The device of claim 5 wherein said plug further includes an annular portion extending radially therefrom to a position adjacent to but sufficiently separate from the wall of the hosel bore to permit said bonding material to pass therebetween when the shaft and plug are inserted into the hosel.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1974-12-06 1975-06-07 1975-12-07 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1978-12-06 1979-06-07 1979-12-07 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1982-12-06 1983-06-07 1983-12-07 $7700.00 Window Closed / Lapsed

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