Callaway Golf Company

Topgolf Callaway Brands Corp.

Bart R Fliers

Matthew Myers

James A Seluga

Robert S Gonczi

Matthew Hannen

Alan Hocknell

Evan D Gibbs

Christopher A G Nunez

Austin L Frederickson

Augustin W Rollinson

Ronald K Hettinger

Herbert Reyes

Pijush K Dewanjee

Wayne H Byrne

John G Guard

David B McGrath

A method of manufacturing a golf club head with a plurality of stiffening members proximate the face, and particularly solid rods or a plate with one or more cutouts, is disclosed herein. The method includes the steps of preparing a wax of a golf club head body having at least one through-hole, a hollow interior, and at least one receiving pocket, preparing waxes of one or more stiffening members, inserting the wax of the stiffening members into the through-hole and seating its opposite end in the receiving pocket, bonding each of the stiffening members to the body with an adhesive material to form a combined wax mold, and casting a golf club head from the combined wax mold.

Method of manufacturing golf club head having stress-reducing features

The present invention is directed to a body for a golf club head that includes structural columns or connectors, also referred to as stiffening members, and particularly a pair of solid rods, that extend between a return section and a sole section approximately parallel with a rear surface of a striking face section and parallel with each other without touching the rear surface or one another, even during impact with a golf ball. Each of the solid rods preferably is cylindrical, has a diameter of 0.050 inch to 0.200 inch, and has a length of 1 to 2.5 inches. Each of the rods has an upper end and a lower end. The solid rods preferably have a variable diameter to reduce their overall mass, such that the upper ends and lower ends have diameters that are larger than, and taper towards, a midpoint of the solid rods so that the solid rods each has an approximate hourglass shape.

Golf club head having stress-reducing features

A method of manufacturing a golf club head having a plurality of structural connectors, and particularly solid rods proximate the face, is disclosed. The method includes the steps of preparing a wax of a golf club head body, the body having first and second through-holes, a hollow interior, and first and second receiving pockets, preparing waxes of first and second solid rods, inserting the first solid rod wax into the first through-hole and seating its lower end in the first receiving pocket, inserting the second solid rod wax into the second through-hole and seating its lower end in the second receiving pocket, bonding each of the first and second solid rods to the body with an adhesive material to form a combined wax mold, and casting a golf club head from the combined wax mold.

A method of manufacturing a golf club head including a plurality of structural connectors, and particularly solid rods proximate the face, is disclosed herein. The method includes the steps of preparing a wax of a golf club head body, the body including first and second through-holes, a hollow interior, and first and second receiving pockets, preparing waxes of first and second solid rods, inserting the first solid rod wax into the first through-hole and seating its lower end in the first receiving pocket, inserting the second solid rod wax into the second through-hole and seating its lower end in the second receiving pocket, bonding each of the first and second solid rods to the body with an adhesive material to form a combined wax mold, and casting a golf club head from the combined wax mold.

A method for manufacturing a golf club head with a thermoplastic polyurethane insert is disclosed herein. The thermoplastic polyurethane insert is disposed in a recess of the club head in which the recess has a depth that is greater than the thickness of the insert. The thermoplastic polyurethane insert has a plurality of tabs on its perimeter to engage the recess walls to allow the insert to essentially float within the recess. An adhesive is disposed between the rear wall of the recess and an interior surface of the insert. Further, an adhesive is applied between the plurality of tabs, and preferably over the exterior surface of each of the plurality of tabs.

Putter-type golf club head with an insert

Growing community of inventors

Vista, CA, United States of America

Bart R Fliers