Golf club and process for making same

• US 4,195,842 A
• Filed: 01/09/1978
• Issued: 04/01/1980
• Est. Priority Date: 08/05/1976
• Status: Expired due to Term

• Current Assignee: Marvin W. Coleman
• Original Assignee: Marvin W. Coleman
• Inventors: Coleman, Marvin W.
• Primary Examiner(s): Apley, Richard J.
• Application Number:
  US05/867,872
• Time in Patent Office: 813 Days
• Field of Search: 273/77 R, 273/78, 273/79, 273/80 C, 273/80.1-80.8, 273/164, 273/167-175
• US Class Current: 473/337
• CPC Class Codes: A63B 2053/0491 with added weights, e.g. changeable, replaceable
• CPC Class Codes: A63B 2053/0495 moving on impact, slidable, spring or otherwise elastically biased
• CPC Class Codes: A63B 53/02 Joint structures between the head and the shaft
• CPC Class Codes: A63B 53/023 adjustable angular orientation
• CPC Class Codes: A63B 53/026 loft angle only, i.e. relative angular adjustment between the shaft and the club head about a horizontal axis perpendicular to the intended line of play when the club is in its normal address position
• CPC Class Codes: A63B 53/04 Heads
• CPC Class Codes: A63B 53/0416 Heads having an impact surface provided by a face insert
• CPC Class Codes: A63B 53/0433 with special sole configurations
• CPC Class Codes: A63B 53/0462 characterised by tapering thickness of the impact face plate
• CPC Class Codes: A63B 53/0487 for putters A63B53/065 takes precedence
• CPC Class Codes: Y10T 29/49794 Dividing on common outline

Abstract

The present invention is a golf club having a club head of generally semi-ellipsoidal shape and including a hosel which connects the club head to a shaft. A weight member extends from the striking face of the club head rearwardly and means are provided for varying the total weight of the member. Club heads are made in pairs by machining a block of material until it is of substantially ellipsoidal shape, and then cutting the same in half at a selected predetermined, but variable, angle in order to produce club heads having striking faces of different angularity for effecting differences in loft and distance when a golf ball is struck.

Claims

1. A golf club, including:

(a) a shaft

(b) a club head assembly, including a club head body having a striking face

(c) said club head body being provided with a longitudinal bore extending from the striking face to the aft end thereof

(d) a weight member positioned in the longitudinal bore behind the ball-engaging portion of the club head'"'"'s striking face, and

(e) a hosel, one end of which is fixed to an end of said shaft

(f) the opposite end of said hosel extending through said club head body

(g) said opposite end of said hosel having a transverse bore through which said weight member passes.

2. The golf club head of claim 1, wherein

(a) said hosel extends through said club head body intermediate the striking face and the opposite end of the body.

3. The golf club of claim 1, wherein

(a) said club head is of semi-ellipsoidal shape.

4. The golf club of claim 1, wherein

(a) said weight member includes a bolt having a threaded shank

(b) a tubular nut fixedly positioned in said club head body proximate the striking face thereof for threaded engagement with the threaded shank of said bolt.

5. The golf club of claim 4, wherein:

(a) said weight member further includes a plurality of weights selectively positioned on said bolt in spaced relation to the striking face of the club head body.

6. A golf club, including

(a) a shaft

(b) a club head assembly including a club head body of substantially semi-ellipsoidal shape and having a striking face

(c) said club head body being provided with a longitudinal bore extending axially from the striking face to the aft end thereof.

(d) a weight member extending through the longitudinal bore of said club head body

(e) said weight member including a bolt having a threaded shank

(f) a tubular nut fixedly positioned in said club head body proximate the striking face thereof for threaded engagement with the threaded shank of said bolt

(g) a plurality of weights selectively positioned on said threaded shank for varying the weight of said club head body

(h) said semi-ellipsoidal club head body being provided with a radial bore spaced from the fore and aft ends thereof, said bore extending at substantially a right angle to, and in communication with, the longitudinal bore in said club head body, and

(i) a hosel mounted in the radial bore in said club head body, one end of said hosel being fixed to an end of said shaft

(j) the opposite end of said hosel being provided with a transverse bore through which the threaded shank of said bolt passes for fixedly engaging said hosel, and the shaft connected thereto, to said club head body.

7. The golf club of claim 6 wherein

(a) a portion of the longitudinal bore of the club head body and the transverse bore of said hosel are counterbored for locating a portion of said weights proximate the center of said club head body.

8. The golf club of claim 6 wherein

(a) said weights are of different weight value for placement at any desired point in the longitudinal bore of the club head body between the central part and the aft end thereof.

9. The golf club of claim 6, wherein

(a) said tubular nut includes an internally threaded sleeve engaged by said threaded shank

(b) a flat, circular disk engaged with the outer terminal of said threaded sleeve

(c) said disk being uniplanar with the striking face of said club head body

10. The golf club of claim 6, wherein

(a) the longitudinal bore of said club head body is counterbored proximate the striking face of said club head body, and

(b) adhesive means in the counterbore proximate the striking face of the club head body, and engageable with said flat, circular disk, for holding said tubular nut in fixed relation to said club head body.

11. A golf club including:

(a) a shaft

(b) a club head assembly comprising a club head body having a striking face at the forward end thereof.

(c) said club head body being provided with a longitudinal bore extending completely through the club head body from the striking face to the aft end thereof

(d) a bolt having a threaded shank positioned in the longitudinal bore

(e) a ball-engaging member connected to the forward end of said threaded shank and coplanar with the striking face of said club head body

(f) a plurality of weights selectively positioned on said bolt in spaced relation to the striking face of the club head body, and

(g) means extending through said club head body for connecting one end of said shaft to said bolt intermediate the striking face and the aft end of the club head body, whereby the weight of the club head assembly is centered with respect to said shaft.

12. The golf club of claim 11, wherein:

(a) said club head body is of substantially semi-ellipsoidal shape.

13. The golf club of claim 12 wherein:

(a) said means includes a hosel extending radially through said semi-ellipsoidal club head body.

14. The golf club of claim 11 wherein:

(a) said ball-engaging member includes an internally threaded sleeve threadedly engaged with one end of said threaded shank

(b) a flat circular disk engaged with the outer terminal of said threaded shank

(c) said disk being uniplanar with the striking face of said club head body.

15. The golf club of claim 14, wherein:

(a) the longitudinal bore of said club head body is counterbored from the aft end to a point intermediate the length thereof for locating said weights therein

(b) said longitudinal bore being counterbored proximate the striking face of said club head body, and

(c) adhesive means in the counterbore proximate the striking face of the club head body, and engageable with said flat circular disk, for holding said internally threaded sleeve and flat circular disk in fixed relation to said club head body.