US 7,491,135 B1
Dual face putter head
Augustin W. Rollinson, San Diego, Calif. (US)
Assigned to Callaway Golf Company, Carlsbad, Calif. (US)
Filed on Dec. 28, 2005, as Appl. No. 11/275,363.
Claims priority of provisional application 60/640705, filed on Dec. 30, 2004.
Int. Cl. A63B 53/00 (2006.01)
U.S. Cl. 473—342 19 Claims
OG exemplary drawing
 
1. A putter-type club head comprising:
a blade member having a first face surface and a second face surface, the first face surface having a first recess therein, the second face surface having a second recess therein;
a first insert disposed within the first recess, the first insert composed of a polymer material;
a second insert disposed within the second recess, the second recess composed of a metal material;
a peripheral mass belt removably attached to the blade member, the peripheral mass belt having a central mass portion, a heel arc member extending from the central mass portion and a toe arc member extending from the central mass portion;
a crown member disposed above the peripheral mass belt and attached thereto;
a sole member disposed below the peripheral mass belt and attached thereto;
wherein the blade member, the crown member, the sole member and the central mass portion of the peripheral mass belt define a central aperture through the putter-type club head having a heel end opening and a toe end opening, and the central aperture separates the crown member from the sole member, and the blade member from the central mass portion;
wherein the putter-type club head has a length, L, from the first surface of the blade member to the rearward most end of the peripheral mass belt ranging from 3.0 inches to 6.0 inches.