Golf club screw

• US 9,421,442 B2
• Filed: 07/14/2015
• Issued: 08/23/2016
• Est. Priority Date: 07/18/2014
• Status: Active Grant

• Current Assignee: Callaway Golf Company
• Original Assignee: Callaway Golf Company
• Inventors: DiMarco, Thomas J.
• Primary Examiner(s): PIERCE, WILLIAM M
• Application Number:
  US14/798,828
• Publication Number:
  US 20160016055A1
• Time in Patent Office: 406 Days
• Field of Search: 473/131, 473/219, 473/407, 411/49, 411/306, 411/312, 411/314, 411/317, 411/319, 411/324, 411/333, 411/341, 411/342, 411/347, 411/352, 411/360, 411/362, 411/399, 411/408, 411/500, 411/501, 411/502, 411/508, 411/998, 411/305, 411/339, 411/378, 411/383, 411/392, 411/900, 411/955
• US Class Current: 1/1
• CPC Class Codes: A63B 2053/0491 with added weights, e.g. changeable, replaceable
• CPC Class Codes: A63B 2209/00 Characteristics of used materials
• CPC Class Codes: A63B 53/04 Heads
• CPC Class Codes: A63B 60/52 with slits
• CPC Class Codes: F16B 23/00 Specially shaped nuts or heads of bolts or screws for rotations by a tool detachable ornamental heads for screws A47G3/00; screwdrivers, wrenches B25B

Abstract

A screw for use with a golf club head is disclosed herein. The screw comprises a head portion with a compressible feature that more securely retains the screw within a receptacle in the golf club head. The compressible feature preferably is a plurality of tapered extensions that can be compressed inwards by a tapered portion of the receptacle, creating spring tension between the head of the screw and the tapered portion of the receptacle. This helps to prevent the screw from becoming dislodged from the golf club head when it is in use.

Claims

1. A golf club head comprising:

a body comprising a receptacle;

a screw comprising a head portion and a threaded engagement portion; and

a keyed bore insert,

wherein the receptacle comprises a conical portion and a threaded bore,

wherein the head portion of the screw comprises a recess sized to receive the keyed bore insert,

wherein the head portion of the screw comprises a plurality of tapered extensions and a plurality of slots,

wherein each of the plurality of tapered extensions is separated from other tapered extensions by at least two of the plurality of slots,

wherein at least one of the plurality of tapered extensions comprises a first taper slope,

wherein the conical portion of the receptacle comprises a second taper slope that is steeper than the first taper slope,

wherein the head portion of the screw fits within the conical portion of the receptacle,

wherein the threaded engagement portion of the screw is sized to engage with the threaded bore, and

wherein the second taper slope compresses the plurality of tapered extensions when the screw is fully engaged with the receptacle.

2. The golf club head of claim 1, wherein the head portion is composed of a first material, wherein the keyed bore insert is composed of a second material, and wherein the first material is different from the second material.

3. The golf club head of claim 1, wherein the keyed bore insert is composed of a tungsten alloy.

4. The golf club head of claim 1, wherein the keyed bore insert is removably affixed within the recess.

5. The golf club head of claim 1, wherein the keyed bore insert is permanently affixed within the recess via a process selected from the group consisting of welding, brazing, and soldering.

6. The golf club head of claim 2, wherein the first material is a steel material and the second material is a tungsten alloy.