Callaway Golf Company

Other

Robert R Lang

Augustin W Rollinson

Roger C Cleveland

Andrew Oldknow

Karl A Clausen

Herbert Reyes

Chris J Wieland

Uday V Deshmukh

Jesse Bolane

Richard C Helmstetter

Joshua G Breier

Homer E Aguinaldo

Pijush K Dewanjee

John G Guard

Larry G Tang

Ronald K Hettinger

Wayne H Byrne

D Clayton Evans

Thomas W Preece

Travis Donald Downing

Scott D Shoemaker

Chad Skelton

Christopher J Wieland

Augustin W Rollinsoni

Augustin W Rollinsoin

Charles Jamedson Glynn

Putter head

A paddle assembly includes a tubular shaft that is configured to be coupled to a blade of the paddle assembly. The shaft has a shaft length, a first flexural rigidity at a first location along the shaft length and a second flexural rigidity at a second location along the shaft length. The ratio of the first flexural rigidity to the second flexural rigidity can be at least approximately 1.20. The shaft is substantially linear along the shaft length. The shaft has a shaft midpoint. The first location and the second location are substantially equidistant from and on opposite sides of the shaft midpoint. The shaft can have a tubular configuration. The shaft has a plurality of layers of material at each of the first location and the second location. The orientation of the layers of material at the first location is different than the orientation of materials at the second location. A modulus of elasticity of the materials used to form the shaft varies along the shaft length. The shaft can be formed at least partially from carbon fiber materials.

Paddle assembly

The iron golf club head () of the present invention is preferably composed of three main components: a periphery member, a central memberand a face plate. The periphery member () is preferably composed of a high density material such as a nickel-tungsten alloy. The central member () is preferably composed of a lightweight, non-metal material. The face plate () is preferably composed of a titanium alloy material. The iron golf club head () preferably has high moments of inertia Izz and Ixx.

Iron golf club

The iron golf club head () of the present invention is preferably composed of three main components: a periphery member, a central memberand a face plateThe periphery member () is preferably composed of a high density material such as a nickel-tungsten alloy. The central member () is preferably composed of a lightweight, non-metal material. The face plate () is preferably composed of a titanium alloy material. The iron golf club head () preferably has high moments of inertia Izz and Ixx.

The iron golf club head () of the present invention is preferably composed of three main components: a periphery membera central memberand a face plateThe periphery member () is preferably composed of a high density material such as a nickel-tungsten alloy. The central member () is preferably composed of a lightweight, non-metal material. The face plate () is preferably composed of a titanium alloy material. The iron golf club head () preferably has high moments of inertia Izz and Ixx.

A method for manufacturing a golf club head with an insert having a face plate is disclosed herein. The 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 insert preferably 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 preferably 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

A method for manufacturing a golf club head with an insert having a face plate is disclosed herein. The 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 insert is preferably composed of a thermoplastic polyurethane material formed from a polytetramethylene ether glycol terminated hexamethylene diisocyanate prepolymer having a NCO group content of 8.0% to 12.0%, and a 1,4 butane diol. An adhesive is preferably 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.

An iron-type golf club head () includes a body () having a front wall () with a ball-striking surface (). The body () further includes a rear surface () that has external rear cavity () formed therein. The rear surface () includes an upper portion () and a lower portion (). The upper portion () is separated from the lower portion () by the external rear cavity () and at least one groove (). The lower portion () of the rear surface () has a notch () formed therein, which communicates with the external rear cavity (). The golf club head () preferably has high moments of inertia Izz and Ixx.

Iron-type golf club

Iron golf club head

Growing community of inventors

Escondido, CA, United States of America

Robert R Lang