Golf club heads and process

• US 3,979,123 A
• Filed: 04/02/1975
• Issued: 09/07/1976
• Est. Priority Date: 11/28/1973
• Status: Expired due to Term

• Current Assignee: Peter A. Belmont
• Original Assignee: Peter A. Belmont
• Inventors: Belmont, Peter A.
• Primary Examiner(s): Apley, Richard J.
• Application Number:
  US05/564,426
• Time in Patent Office: 524 Days
• Field of Search: 273/77 R, 273/78, 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 53/04 Heads
• CPC Class Codes: A63B 53/0416 Heads having an impact surface provided by a face insert
• CPC Class Codes: A63B 53/0466 wood-type
• CPC Class Codes: A63B 53/08 with special arrangements for obtaining a variable impact
• CPC Class Codes: A63B 60/00 Details or accessories of golf clubs, bats, rackets or the like

Abstract

Wooden head for a golf club comprising a wooden body having a top surface, an undersurface carrying a soleplate, a rear surface and a face surface carrying a faceplate adapted to strike a golf ball during use of the golf club. The weight and balance of the head is adjustable by varying the weight of closure means applied to capsules cemented within the wooden body. The capsules extend parallel to each other and to the swing axis of the head and are positioned towards the undersurface and rear surface of the wooden body, the rear surface of said capsules being provided with threaded openings into which closure means of different weights can be screwed for purposes of varying the weight of material therein and adjusting the weight and balance of the club.

Claims

1. Wooden head for a golf club comprising a wooden body having a core comprising its center of gravity, heel and toe sections on opposite sides of said core a hosel located at said heel section, said feel out toe section being separated by a central vertical axis plane which intersects said core, face and rear sections on opposite sides of said core and separated by a transverse vertical axis plane which intersects said core at an angle perpendicular to said central axis and rearwardly of said hosel sole and upper sections below and above said core and separated by a horizontal axis plane which intersects said core, and at least two hollow threaded tubular chambers in said wooden body each of which is adapted to receive and threadably engage a unitary weighted closure means selected from a group of graduated, threaded weighted closure means each having a distinct known weight as the sole weight in said chambers, an equal number of said tubular chambers being located within said wooden body on opposite sides of said central vertical axis plane in said heel and toe sections, extending from said rear surface to said transverse vertical axis plane in said rear section behind and beneath said core and horizontal axis plane in said sole section and spaced from the under surface of said sole section, said tubular chambers extending parallel to each other and to the central vertical and horizontal axis planes and having their weighted closure means exposed and removable through openings in the rear surface of the wooden body, one of said weighted closure means of different known weight being threadably engaged within each of said tubular chambers to provide the desired, variable balance and swing weight of said wooden head while also providing variable delayed impact thrust to the ball being hit and variable increased lift and distance thereto.

2. Wooden head for a golf club according to claim 1 in which said hollow tubular chambers comprise self-contained capsules comprising hollow tubular walled elements, the interior walls of which are threaded for engagement with any one of said unitary threaded weighted closure means, said capsules being cemented in position within said wooden body.

3. Wooden head for a golf club according to claim 1 in which said group of weighted closure means is graduated in about one-half gram increments whereby each matched pair of said closure means weighs about one gram more than the next lighter matched pair of closure means.

4. Process for producing a wooden head for a golf club comprising a wooden body having a core comprising of said core, a hosel located at said heel section, said heel and toe section being separated by a central vertical axis plane which intersects said core, face and rear sections on opposite sides of said core and separated by a transverse vertical axis plane which intersects said core at an angle perpendicular to said central axis and rearwardly of said hosel sole and upper sections below and above said core and separated by a horizontal axis plane which intersects said core, comprising the steps of boring an equal number of hollow tubular openings from the surface of said rear section to the transverse vertical axis plane in each of the heel and toe sections of said wooden body at the rear section thereof, on opposite sides of said vertical axis plane, behind and beneath said core and horizontal axis plane in said sole section and spaced from the under surface of said sole section and parallel to each other and to the central vertical and horizontal axis planes of said wooden body, providing said openings with thread means to form threaded chambers adapted to receive and threadably engage a unitary, weighted closure means selected from a group of graduated, threaded weighted closure means each having a distinct known weight as the sole weight in said chambers, said threadably engaging one of said weighted closure means of different known weight within each of said tubular chambers to provide the desired, variable balance and swing weight of said wooden head while also providing delayed impact thrust to the ball being hit and increased lift and distance thereto.

5. Process according to claim 4 which comprises inserting threaded self-contained tubular walled elements into said tubular openings and cementing said elements in position to form said chambers adapted to receive said unitary threaded closure means.

6. Process according to claim 4 which comprises varying the swing weight of the club head by substituting graduated closure means which differ in weight by a total of about one gram for the closure means present within said chambers.