# US 2016/0256753 A1 · Golf club head with center of gravity adjustability > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2016/0256753 A1 - Document ID: US20160256753A1 - Status: Published application - Kind: A1 - Application number: 15/157,106 - Filed: 2016-05-17 - Published: 2016-09-08 - Earliest claimed: 2012-06-08 - Assignees: Callaway Golf Company - Applicants: Callaway Golf Company - Inventors: Joshua D. Westrum; James A. Seluga; Patrick Dawson; Sean P. Griffin - Web page: https://patentgrep.com/patent/US20160256753A1 ## CPC - A63B 53/06: adjustable - A63B 53/04: Heads - A63B 53/0466: {wood-type} - A63B 60/02: Ballast means for adjusting the centre of mass (A63B60/24, A63B60/54 take precedence) - A63B 53/0408: {characterised by specific dimensions, e.g. thickness} - A63B 53/0433: {with special sole configurations} - A63B 53/0437: {with special crown configurations} - A63B 53/045: {Strengthening ribs} - A63B 60/002: {Resonance frequency related characteristics} - A63B 2053/0491: {with added weights, e.g. changeable, replaceable} - A63B 2102/32: Golf - A63B 2209/00: Characteristics of used materials - A63B 2225/093: Height - A63B: APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT (apparatus for passive exercising, massage A61H) ## Abstract A golf club head comprising an adjustable weighting feature including a tube extending from the crown to the sole of the golf club head is disclosed herein. More specifically, a golf club head formed from three pieces, namely a first piece comprising a face, a crown portion, a sole portion, and a hosel, a second piece comprising a rear end, a crown portion, and a sole portion, and a tube, wherein these pieces are welded to one another, is disclosed herein. Each of these pieces may be separately cast, forged, or formed from a metal material such as stainless steel, titanium alloy, and aluminum alloy. ## Claims ### Claim 1 A golf club head comprising: a first piece comprising a face, a first crown portion, a first sole portion, and a hosel; a second piece affixed to the first piece, the second piece comprising a second crown portion, a second sole portion, and a rear portion; and a bar, wherein the bar extends from the first crown portion to the first sole portion and is disposed behind the face. ### Claim 2 (depends on 1) The golf club head of claim 1, wherein the first crown portion comprises a first alignment feature, wherein the second crown portion comprises a second alignment feature, wherein the bar comprises an upper end and a lower end, wherein the upper end is retained within the first alignment feature, and wherein the lower end is retained within the second alignment feature. ### Claim 3 (depends on 1) The golf club head of claim 1, wherein the face comprises an amplitude of 3000 to 4000 Hz. ### Claim 4 (depends on 3) The golf club head of claim 3, wherein the sole comprises an amplitude that is less than the amplitude of the face. ### Claim 5 (depends on 3) The golf club head of claim 3, wherein the highest amplitude of the golf club head is in the face. ### Claim 6 (depends on 4) The golf club head of claim 4, wherein the sole comprises a high frequency mode and a low frequency mode. ### Claim 7 (depends on 1) The golf club head of claim 1, wherein each of the first piece and the second piece comprises approximately 50% of the golf club head. ### Claim 8 (depends on 1) The golf club head of claim 1 wherein each of the first piece and second piece is composed of a metal material, and wherein the first piece is welded to the second piece. ### Claim 9 (depends on 8) The golf club head of claim 8 wherein the metal material is selected from the group consisting of stainless steel and titanium alloy. ### Claim 10 (depends on 1) The golf club head of claim 1, wherein the bar has a length, a width, and a thickness, wherein the length is greater than the width and the thickness, and wherein the bar extends in a direction approximately perpendicular to the face. ### Claim 11 (depends on 1) The golf club head of claim 1, wherein the golf club head is a wood-type head. ### Claim 12 A golf club head comprising: a first piece comprising a face, a first crown portion, a first sole portion, and a hosel; a second piece affixed to the first piece, the second piece comprising a second crown portion with a cover, a second sole portion, and a rear portion; a hollow tube having an upper opening and a lower opening; and a cap, wherein the hollow tube is inserted in both the first piece and the second piece and is spaced from the hosel, wherein the hollow tube is composed of a composite material, wherein each of the first piece and the second piece is composed of a metal material, wherein the cover of the second crown portion closes the entire upper opening of the hollow tube, and wherein the cap closes the lower opening of the hollow tube and is removably affixed to a sole of the golf club head. ### Claim 13 (depends on 12) The golf club head of claim 12, wherein the first piece is welded to the second piece. ### Claim 14 (depends on 12) The golf club head of claim 12 wherein each of the first piece and the second piece comprises an opening sized to receive at least part of the hollow tube, wherein the hollow tube is cylindrical, and wherein each opening is semicircular. ### Claim 15 (depends on 12) The golf club head of claim 12, wherein the metal material is selected from the group consisting of stainless steel and titanium alloy. ### Claim 16 (depends on 12) The golf club head of claim 12, further comprising a carrier, wherein the carrier is sized to fit through the lower opening of the hollow tube, wherein the carrier is sized to fit within the hollow interior of the hollow tube, wherein the carrier comprises a first material and a second material, and wherein the specific gravity of the first material is less than the specific gravity of the second material. ### Claim 17 (depends on 16) The golf club head of claim 16, wherein the first material is located at a first end of the carrier, wherein the second material is located at a second end of the carrier, and wherein changing the orientation of the carrier within the hollow tube adjusts the location of the center of gravity of the golf club head along a vertical Z axis. ### Claim 18 (depends on 17) The golf club head of claim 17, wherein changing the orientation of the carrier changes the location of the golf club head center of gravity by no less than 0.050 inch and no more than 0.100 inch. ### Claim 19 (depends on 12) The golf club head of claim 12, wherein the face comprises an amplitude of 3000 to 4000 Hz. ### Claim 20 (depends on 12) The golf club head of claim 12, wherein the sole comprises an amplitude that is less than the amplitude of the face.