US 12,115,422 B2
Multi-material screw weight
Travis D. Milleman, Portland, OR (US); Cory S. Bacon, Cave Creek, AZ (US); and Les J. Bryant, Peoria, AZ (US)
Assigned to Karsten Manufacturing Corporation, Phoenix, AZ (US)
Filed by KARSTEN MANUFACTURING CORPORATION, Phoenix, AZ (US)
Filed on Feb. 13, 2018, as Appl. No. 15/896,009.
Claims priority of provisional application 62/458,215, filed on Feb. 13, 2017.
Prior Publication US 2018/0229091 A1, Aug. 16, 2018
Int. Cl. A63B 53/06 (2015.01); A63B 53/04 (2015.01)
CPC A63B 53/0475 (2013.01) [A63B 53/0466 (2013.01); A63B 53/047 (2013.01); A63B 2053/0479 (2013.01); A63B 2053/0491 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A weight for a golf club head consisting of:
a first part comprising a head including a recess and a threaded region, a cavity, and a first material having a first specific gravity; and
a second part comprising a first end, a second end, and a second material having a second specific gravity;
wherein the second part comprises a second part diameter and a second part length extending between the first end and the second end; and
wherein the second part diameter is constant along the second part length;
wherein the threaded region extends an entire length of the head; the threaded region comprises a threaded region length; and
the threaded region length ranges from 0.10 inch to 0.25 inch;
wherein the threaded region comprises a maximum thread diameter in a range of 0.4 inch to 0.8 inch;
wherein the cavity of the first part comprises a cavity cross-sectional shape; and
wherein the second part comprises a second part cross-sectional shape; and
wherein the cavity cross-sectional shape is complementary to the second part cross-sectional shape;
wherein the first end of the second part is configured to be removably coupled with the cavity of the first part;
wherein the second part is secured within the first part by a press fit, wherein the second part diameter is greater than a diameter of the cavity of the first part;
wherein the second part is selected from a plurality of second parts;
wherein each second part of the plurality of second parts comprises a different weight;
wherein the second part is devoid of a threaded region;
wherein the recess of the head is configured to receive a fastener tool;
wherein the second specific gravity is greater than the first specific gravity;
wherein:
the first material comprises:
a steel material; and
a first specific gravity less than or equal to 7.8;
the second material comprises:
a tungsten material; and
a second specific gravity greater than 7.8.