Putter-type golf club head with an insert

A putter club head comprising:

• a club head body 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 perimeter having a plurality of integral tabs extending therefrom that engage the edge wall of the club head body, each of the plurality of integral tabs spaced a predetermined distance from each other thereby defining openings between the integral tabs, the exterior surface of the insert having an indented portion, the insert 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, wherein the insert has a Shore D hardness ranging from 50 to 65;
• and
• a face plate attached to the indented portion of the exterior surface of the insert, the face plate composed of a stainless steel alloy, the face plate covering less than 90% of the exterior surface of the insert.

A putter club head comprising:

• a club head body 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 perimeter having a plurality of integral tabs extending therefrom that engage the edge wall of the club head body, each of the plurality of integral tabs spaced a predetermined distance from each other thereby defining openings between the integral tabs, the exterior surface of the insert having an indented portion, the insert 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, wherein the insert has a Shore D hardness ranging from 50 to 65, and wherein the insert has a change in ultraviolet light stability of less than 0.2% after an exposure time of 48 hours and 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 face plate attached to the indented portion of the exterior surface of the insert, the face plate composed of a stainless steel alloy, the face plate covering less than 90% of the exterior surface of the insert.

A putter-type club head comprising:

• a body having a face portion, a crown portion, a sole portion and an aft-mass portion, wherein the face portion, the crown portion, the sole portion and the aft-mass portion define a central aperture through the body having a heel end opening and a toe end opening, wherein the crown portion extends rearward from the face portion to over the aft-mass portion, wherein the sole portion extends from face portion to the aft-mass portion, and wherein the central aperture separates the crown portion from the sole portion and the face portion from the aft-mass portion;
• an insert disposed within a recess of the face portion, the insert 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, wherein the insert has a Shore D hardness ranging from 50 to 65;
• and
• a face plate attached to an indented portion of an exterior surface of the insert, the face plate composed of a material having a density greater than the density of the polymer material, the face plate covering less than 90% of the exterior surface of the insert.

A putter-type club head comprising:

• a face portion having a recess with a face insert disposed therein, the insert 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, wherein the insert has a Shore D hardness ranging from 50 to 65;
• a sole portion extending rearward from the face portion, the sole portion having an internal surface and an external surface, the internal surface of the sole having a visible heel section and a visible to section;
• an aft mass portion rearward from the face portion a distance of between 2.5 inches to 4.5 inches;
• a crown portion extending rearward from the face portion, the crown portion having a central elongated section extending over the aft mass portion and a forward section having a width from a heel end of the face portion to a toe end of the face portion from between 3.0 inches to 5.0 inches, the forward section having a width greater than a width of the central elongated portion;
• and
• an alignment means disposed on an external surface of the crown portion.

A putter-type club head comprising:

• a face portion having a recess with an insert, the insert 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, wherein the insert has a Shore D hardness ranging from 50 to 65;
• a crown portion having a front section and a central elongated section extending rearward from the front section, the front section having a width from a heel end of the putter-type club head to a toe end of the putter-type club head ranging from 3.0 inches to 5.0 inches, the central elongated section having a width ranging from 1.0 inch to 3.0 inches, the front section having a width greater than a width of the central elongated section;
• a sole portion extending rearward from the face portion;
• an aft mass portion disposed at a rearward end of the sole portion;
• and
• an alignment means disposed on an external surface of the crown portion;
• wherein the putter-type club head has length from the face portion to a rearward most end of the aft mass portion ranging from 2.5 inches to 4.5 inches.

A putter-type club head comprising:

• a face portion having an external surface and an internal surface;
• a sole portion extending rearward from the face portion and having a semi-circular shape;
• an aft mass portion disposed at a rearward end of the sole portion, the aft mass portion having 10 to 30 volume percent of the putter-type club head and from 25 to 75 weight percent of the putter-type club head;
• a crown portion extending rearward from the face portion, the crown portion having a central elongated section extending over the aft mass portion and a forward section having a width from a heel end of the face portion to a toe end of the face portion, the forward section having a width greater than a width of the central elongated portion;
• and
• an alignment means disposed on an external surface of the crown portion;
• wherein the face portion, the crown portion, the sole portion and the aft-mass portion define a central aperture through the body having a heel end opening and a toe end opening;
• and
• a face insert disposed within a recess of the face portion, the face insert 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, wherein the face insert has a Shore D hardness ranging from 50 to 65.

A putter-type club head comprising:

• a body having a face portion, a crown portion, a sole portion and an aft-mass portion, wherein the face portion, the crown portion, the sole portion and the aft-mass portion define a central aperture through the body having a heel end opening and a toe end opening, wherein the crown portion extends rearward from the face portion to over the aft-mass portion, wherein the sole portion extends from face portion to the aft-mass portion, wherein the central aperture separates the crown portion from the sole portion and the face portion from the aft-mass portion, and wherein the face portion has an external surface with a recess therein;
• a plurality of recesses on an external surface of the crown portion, each of the plurality of recesses having a circular shape with a diameter ranging from 1.62 inches to 1.70 inches;
• a plurality of circular inserts, each of the plurality of circular inserts disposed within a corresponding recess of the plurality of recesses;
• and
• a face insert disposed within a recess of the face portion, the face insert 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, wherein the face insert has a Shore D hardness ranging from 50 to 65.