Abstract: A golf club is disclosed that has a golf club head with a face having peaks or ridges and deep grooves or valleys. The deep grooves or valleys promote improved “feel” and/or reduced “smash factor” which may be particularly desirable when the golf club head comprises a putter face. The deep grooves or valleys may eliminate the need for costly soft metal alloy faces and/or polymeric or other resilient inserts between the face and the body of the golf club head.

Abstract: A wood-style golf club head includes a strike face and a body that cooperate to define a hollow internal club head volume. The strike face formed from a strike plate having an outer perimeter and a frame surrounding the strike plate. The strike plate is affixed to the frame across the entire outer perimeter. The strike plate and frame define a continuous ball striking surface that has a surface texture characteristic of milling that extends continuously across both the strike plate and the frame.

Abstract: Embodiments of golf club heads and methods to manufacture golf club heads are generally described herein. In one example, a method of manufacturing a golf club head may include providing a body portion having a face opening and an interior cavity. The method may include preparing a surface of the interior cavity to receive a structural adhesive by abrading the surface and cleaning the surface with a solvent. The method may include joining a face portion to the body portion to cover the face opening. The method may include introducing the structural adhesive to the interior cavity. The structural adhesive may form a solid plastic material coupled to a rear surface of the face portion and coupled to a surface of the interior cavity. Other examples and embodiments may be described and claimed.

Abstract: A golf club head includes a body defining an interior cavity. The body includes a sole positioned at a bottom portion of the golf club head, a crown positioned at a top portion, and a skirt positioned around a periphery between the sole and crown. The body has a forward portion and a rearward portion. The club head includes a face positioned at the forward portion of the body. The face defines a striking surface having an ideal impact location at a golf club head origin. Embodiments include club heads for a fairway wood that at least one of a high moment of inertia, a low center-of-gravity, a thin crown and a high coefficient of restitution. A sleeve for easily disconnecting a shaft to the club head allows for selective adjustment of the head's loft and lie angle.

Abstract: Customizable golf putters are disclosed. The putters include a putter face; a putter head that is configured to be reversibly connected to the putter face (with the putter head being selected from a plurality of different putter head styles); and a hosel that is configured to be reversibly connected to any of a plurality of hosel receiving channels that are accessible on a top surface of the putter head (the hosel is also selected from a plurality of different hosel styles). The golf putters further include a threaded shaft connector that is configured to reversibly connect the hosel to a putter shaft. In addition, the golf putters include one or more peg fillers, which are configured to be inserted into empty hosel receiving channels.

Abstract: A golf club head including a crown, a sole, a face portion defining a loft plane, a rear portion, and a leading edge between the face portion and the crown. The crown comprises a turbulator comprising a plurality of ridges. Each ridge comprises a front surface having a first end nearest the face, a second end nearest the ridge apex, and a rear surface nearest the rear portion of the club head. The turbulator is positioned in a forward two-fifths portion of the crown in a front end to a rear end direction. The golf club head further comprises a plurality of protrusions on the crown, wherein the plurality of protrusions is positioned near the leading edge and extends toward the rear of the golf club head.

Abstract: An iron-type golf club head is provided with a body having a volume less than 120 cc. The body can include a sole portion with two or more slots extending upwardly into the body through the sole portion into a cavity behind a face portion. A damper can be included in the cavity and in contact with a rear surface of the face portion. The club head can have a maximum CT proximate to the ideal striking location and a CT dropoff of no more than 110 ?s at a point located between a first and second scoreline proximate to the sole portion. The club head can also have a CG along the y-axis (CG-y) between 0.25 mm and 20 mm and a CG along a positive z-up axis (CG-z) between 12 mm and 25 mm.

Abstract: Embodiments of golf club heads and methods to manufacture golf club heads are generally described herein. In one example, a method of manufacturing a golf club head includes forming a body portion with an interior cavity, forming a face portion, attaching the face portion to the body portion to close the interior cavity, injecting a polymer material into the interior cavity from a port on the body portion, and inserting a first mass portion into the port to close the port. The method further includes attaching a second mass portion to the body portion below a horizontal midplane of the body portion. A total mass of the second mass portion may be greater than or equal to five times a total mass of the first mass portion. Other examples and embodiments may be described and claimed.

Abstract: Golf club heads are described having a club head portion, a shaft portion connected to the club head portion, and a grip portion connected to the shaft portion. The club head portion has a heel portion, a sole portion, a toe portion, a crown portion, a hosel portion, and a striking face. The striking face can have a center face roll contour, a toe side roll contour, a heel side roll contour, a center face bulge contour, a crown side bulge contour, and a sole side bulge contour. The toe side roll contour can be more lofted than the center face roll contour. The heel side roll contour can be less lofted than the center face roll contour. The crown side bulge contour can be more open than the center face bulge contour, and the sole side bulge contour can be more closed than the center face bulge contour.

Abstract: A laser mandrel system that self-centers within a hosel bore of a golf club head to allow for precision adjustment of lie and loft is disclosed herein. The mandrel includes a one-piece housing with upper and lower portions, a laser centered within the upper portion of the housing, and a plurality of o-rings extending around an exterior or interior surface of a lower portion of the housing.

Abstract: Embodiments of golf club heads and methods to manufacture golf club heads may include a golf club head having a body portion, a first mass portion, a face portion coupled to the front portion of the body portion to close the interior cavity of the body portion, a second mass portion coupled to a back wall portion below a horizontal midplane of the body portion, a port at or proximate to a horizontal midplane of the body portion and connected to the interior cavity, and a polymer material injected in the interior cavity from the port. The first mass portion may be made from a material having a greater density than the polymer material, the second mass portion may be made from a material having a greater density than a material of the body portion, and a total mass of the second mass portion may be greater than or equal to three times a total mass of the first mass portion. Other examples and embodiments may be described and claimed.

Abstract: Presented herein are embodiments of golf club heads comprising a head interior and a hosel structure, the head interior bounded by a head front portion, a head rear portion, a head heel portion, a head toe portion, a head top portion, and a head sole portion. The golf club heads further comprising various optimized characteristics, including optimizing the head center of gravity height and depth in relation to the head volume and mass.

Abstract: Embodiments of golf clubs with grooves and methods of manufacture thereof are described herein. In one embodiment of a golf club described herein, the golf club has a head with a body. The body has a strike face with channels and at least one insert located within at least one of the channels. At least one of the channels comprises a single groove, and the insert forms at least a portion of the single groove. At least one of the channels comprises an opening on the strike face that is narrower than a bottom of the at least one of the channels. Other embodiments and related methods are also disclosed herein.

Abstract: A golf club head includes a hollow portion. The head includes a first member having an opening, and a second member attached to the first member and covering the opening. The first member includes a first rib projected toward the hollow portion. The second member includes a second rib projected toward the hollow portion. The first rib is engaged with the second rib. A Young's modulus of a material of the second member may be smaller than that of the first member. The second member may be adhered to the first member using an adhesive.

Abstract: Embodiments of golf clubs and golf club heads and methods to manufacture golf clubs and golf club heads are generally described herein. In one example, a golf club head may include a body portion includes an interior cavity and a front portion having a perimeter ledge portion and an undercut portion. The golf club head includes a face portion having a back surface with a perimeter portion attached to the perimeter ledge portion to close the interior cavity. The golf club head further includes a first mass portion, and a second mass portion. A port above the second mass portion is connected to the interior cavity and is configured to receive the first mass portion. The golf club head further includes a polymer material in the interior cavity interior cavity. Other examples and embodiments may be described and claimed.

Abstract: The amorphous alloy golf club head is integrally casted from an amorphous metal material, and includes a neck, a hitting panel, a peripheral wall, a cushion block and an adjusting member. The neck is configured for combination with a club; the hitting panel is connected to the bottom of the neck; the peripheral wall is located on a rear surface of the hitting panel, the peripheral wall forms a rear concave cavity with the hitting panel; the cushion block is embedded in the peripheral wall to reduce the casting thickness of the peripheral wall, and provided with a plurality of pillars thereon, wherein one end of each pillar is fixedly connected to the cushion block body, and the other end of the pillar has an exposed surface or exposed section not covered by the peripheral wall; and the adjusting member is matingly connected to the pillar.

Abstract: A ball striking device has a head that includes a metal face configured for striking a ball, a rearwardly extending metal band, a top piece, and a bottom piece. The metal band has a first end extending from one side of the face, a second end extending from the opposite side of the face, and a rear portion extending between the first and second ends and defining at least a portion of the rear periphery of the head. The top piece and the bottom piece are non-metallic or substantially non-metallic. The top piece is connected to the top side of the metal band and forms at least a portion of a top side of the head, and the bottom piece is connected to the bottom side of the metal band and forms at least a portion of a bottom side of the head. The top piece and the bottom piece are separated by the metal band.

Abstract: Putters include a putter body having a ball striking face member made of a material having a first hardness characteristic. A cavity is defined in the putter body behind the ball striking face member, and plural openings are defined in the ball striking face member extending rearward with respect to the ball striking face member and into the cavity. A polymeric material at least partially fills the openings and the cavity, wherein the polymeric material has a second hardness characteristic that is softer than the first hardness characteristic. The ball striking face member and the polymeric material exposed in at least some of the openings provide a ball striking surface of the putter. The ball striking surface may include grooves or scorelines to affect the launch angle, spin, and/or roll of the ball during a putt. Methods for making such putter devices also are described.

Abstract: Embodiments of golf club heads and methods to manufacture golf club heads are generally described herein. In one example, a golf club head may include a body portion having a toe portion, a heel portion, a top portion, a sole portion, a front portion, a back portion, a hosel portion, a first interior cavity, and a hosel transition portion between the first interior cavity and the hosel portion. The golf club head may include a second interior cavity extending into the hosel transition portion and connected to the first interior cavity. The body portion may include a port connected to the first interior cavity. The first interior cavity may be filled with a polymer material from the port. The golf club head may include a mass portion located at or below a horizontal midplane of the body portion. Other examples and embodiments may be described and claimed.

Abstract: A golf club head includes a crown surface having an apex at a highest point and extending between the face, the rear, the heel and the toe of the golf club head. The golf club head also includes a plurality of crown turbulators projecting from the surface of the crown and located at least partially between the leading edge and the apex, wherein the height of each turbulator decreases from the leading edge toward the rear portion.