Insert for golf club head
First Claim
Patent Images
1. A golf club head comprising:
- a club head body having a front face with a recess therein;
an insert disposed within the recess, the insert comprising a body with an exterior surface, an interior surface and a perimeter defining the thickness of the body, the insert composed of a thermoplastic polyurethane material formed from a polytetramethylene ether glycol terminated hexamethylene diisocyanate prepolymer having a nitrogen-carbon-oxygen group content of 8% to 12%, and a 1,4 butane diol, wherein the insert has a Shore D hardness ranging from 50 to 65, a thickness ranging from 0.125 inch to 0.500 inch, a heat deflection less than 1% after loading of 14 pounds per square inch at a temperature of 200°
F. for two hours, and a change in ultraviolet light stability of less than 1% after an exposure time of 48 hours;
wherein the insert has a “
L”
color value of approximately 95 on a scale of 0 to 100.
7 Assignments
0 Petitions
Accused Products
Abstract
An insert composed of a thermoplastic polyurethane materials 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 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 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.
29 Citations
13 Claims
-
1. A golf club head comprising:
-
a club head body having a front face with a recess therein; an insert disposed within the recess, the insert comprising a body with an exterior surface, an interior surface and a perimeter defining the thickness of the body, the insert composed of a thermoplastic polyurethane material formed from a polytetramethylene ether glycol terminated hexamethylene diisocyanate prepolymer having a nitrogen-carbon-oxygen group content of 8% to 12%, and a 1,4 butane diol, wherein the insert has a Shore D hardness ranging from 50 to 65, a thickness ranging from 0.125 inch to 0.500 inch, a heat deflection less than 1% after loading of 14 pounds per square inch at a temperature of 200°
F. for two hours, and a change in ultraviolet light stability of less than 1% after an exposure time of 48 hours;wherein the insert has a “
L”
color value of approximately 95 on a scale of 0 to 100. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
-
-
13. A putter-type club head comprising:
-
a club head body composed of a stainless steel material comprising a front face, a toe to one side of the front face and a heel to the other side of the front face, and a sole, the front face having a recess therein, the recess defined by a frontal recess wall and an edge wall substantially perpendicular to the frontal recess wall, the edge wall defining the depth and area of the recess; an insert disposed within the recess, the insert comprising a body with an exterior surface, an interior surface and a perimeter defining the thickness of the body, the insert composed of a thermoplastic polyurethane material formed from a polytetramethylene ether glycol terminated hexamethylene diisocyanate prepolymer and a 1,4 butane diol, wherein the insert has a Shore D hardness ranging from 50 to 65, a heat deflection less than 1% after loading of 14 pounds per square inch at a temperature of 200°
F. for two hours, and a change in ultraviolet light stability of less than 1% after an exposure time of 48 hours.wherein the insert has a “
L”
color value of approximately 95 on a scale of 0 to 100.
-
Specification
-
- Resources
Litigation Campaign Assessment
Thank you for your request. You will receive a custom alert email when the Litigation Campaign Assessment is available.
×
-
Current AssigneeCallaway Golf Company
-
Original AssigneeCallaway Golf Company
-
InventorsGuard, John G., Dewanjee, Pijush K.
-
Primary Examiner(s)Passaniti, Sebastiano
-
Application NumberUS11/275,045Publication NumberTime in Patent Office211 DaysField of Search473324-350US Class Current473/340CPC Class CodesA63B 53/0408 characterised by specific d...A63B 53/0416 Heads having an impact surf...A63B 53/042 the face insert consisting ...A63B 53/0441 with visual indicators for ...A63B 53/0466 wood-typeA63B 53/047 iron-typeA63B 53/0487 for putters A63B53/065 take...
