Abstract: Examples of golf club heads and methods to manufacture golf club heads are generally described herein. In one example, a putter-type golf club head may include a body portion. The body portion may include a toe portion, a heel portion, a front portion, a rear portion, a top portion, a sole portion, and a weight port. The weight port may have a threaded section and an unthreaded section. A first weight portion may be coupled to the unthreaded section by an epoxy or other adhesive. A second weight portion may be threadingly fastened to the threaded section. The first weight portion may include a central through-bore to provide at least one of air relief or relief for the epoxy or other adhesive. Other examples may be described and claimed.

Abstract: Embodiments of multi-component putters comprising an upper portion and a lower portion are described herein. The upper portion is formed from a first material having a first density and the lower portion is formed from a second material having a second density. The first density is less than the second density. The upper portion is affixed to the lower portion via an adhesive or a combination of adhesives and interlocking geometry. The multi-component putter design provides increased forgiveness and moment of inertia compared to a putter formed from a single material.

Abstract: Examples of golf club heads and methods to manufacture golf club heads are generally described herein. In one example, a body portion of a golf club head may include a cavity having an opening and an internal structure defined by a wall portion and a base portion. A hosel portion may include an insert portion and a neck portion extending therefrom. The hosel portion may be attached to the body portion by an interference fit between the neck portion and the opening of the cavity. The insert portion may be received inside the cavity and may be spaced apart from the internal structure of the cavity. A space between the insert portion and the internal structure of the cavity may be partially or entirely filled with an adhesive to hold the hosel portion in place. Other examples may be described and claimed.

Abstract: Examples of golf clubs and methods to manufacture golf clubs are generally described herein. In one example, a golf club may include a golf club head, a hosel portion, and a shaft. The hosel portion may be positioned rearward of a center of gravity of the body portion. The shaft portion may be coupled to the hosel portion and may have a first shaft portion and a second shaft portion. The first shaft portion may extend from the hosel portion and tilt toward the face portion with no lateral tilt toward a toe portion or a heel portion of the body portion. The second shaft portion may extend from the first shaft portion toward the heel portion and toward a face portion of the body portion. Other examples of golf club heads and methods to manufacture the same may be described and claimed.

Abstract: The present invention provides a method of making a substantially cylindrical insert by metal injection molding by providing a primer insert injection mold to form a substantially cylindrical metal primer insert, injection molding the metal injection molding feedstock into the primer insert injection mold to form a first substantially cylindrical metal primer insert having a first size; debinding the first substantially cylindrical metal primer insert to remove the first binding agent; and sintering the first substantially cylindrical metal primer insert to remove the second binding agent and form the substantially cylindrical metal primer insert having a second size.

Abstract: A multiple material golf club head made of different metals that, when combined via additive manufacturing, transmit tensile or compressive force, shear force, bending moment, and torsional moment as if the different metal parts were a single piece of material is disclosed herein. In particular, the golf club head is a putter head with a body piece made of a first metal material that is in direct contact with a face piece made of a second metal material, and applied via additive manufacturing, such that load conditions are transmissible at a boundary between these two pieces. The second metal material forms at least a portion of the striking surface and a lower region of the hosel, and the interface between the two materials is contiguous from the face to the hosel.

Abstract: A process for manufacturing a putter with a bi-material shaft is disclosed herein. The putter comprises a putter head, the bi-material shaft, a mass member and a grip. The bi-material shaft comprises a body with a tip end and a butt end. The body comprises a metal section extending from the tip end to a connection point, and a composite section extending from the butt end to the connection point. The mass member is positioned within an opening at the butt end of the shaft. Mass from the shaft is transferred to the club head and the mass member in the butt end of the shaft.

Abstract: A golf putter head that can improve the golfer's ability by providing function features that create a consistent setup of putter head position in relation to the golf ball and golfer position in relation to the putter. Once the setup is consistent, further increase in the consistency of the golfer's stroke can be attained through building muscle memory. From the putter stroke, the hitting face can impart an accurate forward motion to the golf ball upon being stricken by the putter head. The putter can provide tactile feedback to the golfer during the golf swing while imparting a forward roll to the golf ball upon striking and can simplify the visual alignment of the putter head to the golf ball.

Abstract: This invention is directed toward a lie adaptor that can be used to adjust an angel at which the shaft attaches to the putter. In one embodiment, the lie adaptor is inserted into the hosel of a putter, and then secured to both the shaft and putter head. In another embodiment, the lie adaptor has a cavity in its upper portion into which the shaft fits. In either case, the lie adaptor can be made with a variety of angle adjustments possible, such that a golf shop or even an individual golfer can quickly, accurately, and economically adjust the putter lie.

Abstract: The present invention provides a method of making a substantially cylindrical insert by metal injection molding by providing a primer insert injection mold to form a substantially cylindrical metal primer insert, injection molding the metal injection molding feedstock into the primer insert injection mold to form a first substantially cylindrical metal primer insert having a first size; debinding the first substantially cylindrical metal primer insert to remove the first binding agent; and sintering the first substantially cylindrical metal primer insert to remove the second binding agent and form the substantially cylindrical metal primer insert having a second size.

Abstract: One embodiment of the present invention provides a method of making a polymeric ammunition cartridge having wicking texturing about the projectile aperture.

Abstract: One embodiment of the present invention provides a method of making a polymeric ammunition cartridge having wicking texturing about the projectile aperture.

Abstract: A process for manufacturing a putter with a bi-material shaft is disclosed herein. The putter comprises a putter head, the bi-material shaft, a mass member and a grip. The bi-material shaft comprises a body with a tip end and a butt end. The body comprises a metal section extending from the tip end to a connection point, and a composite section extending from the butt end to the connection point. The mass member is positioned within an opening at the butt end of the shaft. Mass from the shaft is transferred to the club head and the mass member in the butt end of the shaft.

Abstract: A putter head comprising a novel alignment structure is disclosed herein. In particular, the putter comprises an alignment sphere attached to an upper surface of a lower flange and an alignment ring suspended over the lower flange and vertically aligned with the alignment sphere. When a golfer has oriented the putter properly in front of a golf ball at address, the alignment sphere will appear to the golfer to be encircled by the alignment ring.

Abstract: A putter head comprising a novel alignment structure is disclosed herein. In particular, the putter comprises an alignment sphere attached to an upper surface of a lower flange and an alignment ring suspended over the lower flange and vertically aligned with the alignment sphere. When a golfer has oriented the putter properly in front of a golf ball at address, the alignment sphere will appear to the golfer to be encircled by the alignment ring.

Abstract: A coating region 6p of a crown 6 has a maximum saturation portion SR1 at which a saturation is a maximum value Cmax, a high saturation region SR2 which includes the maximum saturation portion SR1 and in which a saturation difference from the saturation Cmax is not greater than 15, and a low saturation region SR3 in which a saturation difference from the saturation Cmax is greater than 15. When a straight line that passes through a face center Fc and extends in a face-back direction is defined as a straight line C, an area of a portion of the high saturation region SR2 at a toe side with respect to the straight line C is denoted by St, and an area of a portion of the high saturation region SR2 at a heel side with respect to the straight line C is denoted by Sh, then St>Sh.

Abstract: The invention is a golf club head with a strike face including a first elongated channel and a second elongated channel which both extend from a top-to-bottom center line of the striking face toward the heel edge and the toe edge of the strike face. The channels can be filled with a fill material, for example a polymer, and a groove may be defined in the strike face or in the fill material of one or more of the channels. The height of the channels, the hardness of the fill material, and the positioning of the groove can all affect the performance of the golf club head. In some embodiments, the golf club head is a putter-type club head.

Abstract: A head 2 includes a head body h1 and a face plate p1 fixed to the head body h1. The face plate p1 includes a plate front surface f1 having a hitting face, a plate back surface b1, and a plate side surface s1. The head body h1 includes a body side surface v1 opposed to the plate side surface s1, and a receiving surface u1 which supports the face plate p1 from rear. A first contact part c1 is formed by contact between the body side surface v1 and the plate side surface s1. A hollow part sp1 is provided at a position adjacent to the first contact part c1.

Abstract: Embodiments of golf clubs with grooves and methods of manufacture thereof are described herein. Other embodiments and related methods are also disclosed herein.

Abstract: A golf club head comprising a hinged face component is disclosed herein. The face component is preferably a partial face cup with striking face, a flange, and a grooved hinge region between the striking face and the flange, which allows the striking face to flex and improves the sound of the striking face when it makes contact with a golf ball. The face component can be L-shaped, r-shaped, or cup shaped, and the groove preferably extends along the entire horizontal length of at least one hinge. In other embodiments, the groove may extend along a horizontal midline of the rear surface of the face cup striking face.

Abstract: Some embodiments include a golf club. The golf club includes a golf club head body having a face surface arranged for impacting a golf ball, a rear surface opposite the face surface, a sole surface, a crown surface including a first crown surface and a second crown surface, and a toe surface including a first toe surface and a second toe surface. The toe surface transitions to the crown surface at a toe end curved boundary surface comprising a first curved boundary surface where the first toe surface transitions to the first crown surface, a second curved boundary surface where the second toe surface transitions to the second crown surface, and a toe end radius of curvature. At least part of the toe end radius of curvature varies. Other embodiments of related golf clubs and methods are also disclosed.

Abstract: Putter heads include a ball striking head body member and a rear body member. In some putter heads, the ball striking head body member includes a rearwardly extending body support having an opening defined therein, and the rear body member extends through this opening. In other putter heads, the rear body member includes a forwardly projecting platform that includes an alignment aid thereon. In still other putter heads, the ball striking head body member includes rearward extending arms at the heel and toe sides that extend rearward at an angle to a location outside the heel and toe edges, respectively, of the ball striking face. Additionally, the rear body member of other putter heads have a first end engaged at a heel side of the ball striking head body member and a free second end that is not engaged with any portion of the putter head.

Abstract: Golf clubs and golf club heads, such as putter heads (102), may include a putter body and an adjustable ball striking face insert (116) forming at least a portion of the ball striking face (104) and contained within the putter body. The insert (116) may have a plurality of sides (118a, 118b, 118c, 118d), each of the sides having different performance characteristics to permit customization of the putter (100). In some examples, the adjustable ball striking face insert (116) may be rotatably mounted within the putter head. Additionally or alternatively, the insert (116) may be removably mounted within the putter head (102). In some arrangements, the insert (116) may be finely adjustable to alter the loft angle of the putter head (102).

Abstract: A golf putter with a clear insert in the clubhead is provided. One or more alignment lines are present on the top and bottom surfaces of the insert and lie directly vertically above one another. The alignment lines assist the player in ensuring that the clubhead is parallel to the ground. If the clubhead is not parallel to the ground, the alignment lines on the top and bottom surfaces will appear offset. The player can then reposition the clubhead until the alignment lines are aligned.

Abstract: An improved putter and method of use utilizing a putter shaft having a rectangular grip extending approximately half the shaft length. A polygonal-like ring provides a flat face with an extended toe and a short heel. The face of the putter head has a polymeric insert for weight redistribution and for better putting feel. The sides of the putter include triangular shaped indents also for weight redistribution. The rear of the putter head is arched to prevent ground contact during putting and further to increase head stability during the stroke.

Abstract: A putter-type golf club head that, when oriented in a reference position, includes a striking wall extending in the heel to toe direction and defines a substantially planar striking surface for hitting a golf ball. A central elongate member is in communication with, and extends rearward from, the striking wall. An upper surface of the central elongate member includes a plurality of alignment elements. At least one of the plurality of alignment elements has a parallel visual indicator section, at least a portion of which extends substantially parallel to the striking surface. The width of the at least one of the plurality of alignment elements is substantially equivalent to the diameter of a golf ball.

Abstract: A putter having a body with a striking surface, an upper surface that is visible to player when in the address position and a sole plate that is coupled to a bottom surface of the body. The upper surface includes at least one aperture and the sole plate includes a sightline projection that extends into the aperture to form a sightline on the putter that is visible to the player.

Abstract: When hitting a ball to a target with a putter, the ball often travels to a point which is deviated to the right from the target. When a golfer looks at the target just after taking his address, he turns his head to a target about a rotation axis which extends through the back of his head. When this rotation axis is not horizontal and an angle defined by the rotation axis and his sighting line to a putter head is not 90°, he has an optical illusion which tricks him into believing that he has to correct his address position. The patter of the present invention is provided with a thin-plate pendulum thereby allowing him to turn his head about the rotation axis while keeping the angle defined by the rotation axis and his sighting line at 90°.

Abstract: A putter having a body with a striking surface, an upper surface that is visible to player when in the address position and a sole plate that is coupled to a bottom surface of the body. The upper surface includes at least one aperture and the sole plate includes a sightline projection that extends into the aperture to form a sightline on the putter that is visible to the player.

Abstract: The present invention relates to a putter-type golf club head with a face on a front side to hit a golf ball comprising a head main portion provided with a concave portion on a side of the face, and a face insert made of elastic material attached to the concave portion of the head main portion, the face insert having a three-layer structure comprising of a first layer disposed at the front, a third layer disposed at the rear, and a second layer disposed between the first layer and the third layer, each of the first layer, the second layer, and the third layer having a hardness of h1, h2, and h3 and a rebound resilience of r1, r2, and r3, and the first layer, the second layer, and the third layer satisfying the following relations: h2<h1<=h3, r1>r2, and r1>r3.

Abstract: A golf putter head which includes a putting face having a positive loft angle diverging from vertical to a putter head base. The putting face is formed from a plurality of substantially parallel blades, each of the blades contiguous with each other wherein the blades are arrayed at a downward angle. Each of the blades narrows in width towards the putting face and terminates in a narrow tip. Each of the blades is flexible at its tip in order impart an upward spring force upon impact with a golf ball.

Abstract: Putter heads have a ball striking face portion and a rear body portion (as one or more parts). These putter heads may have a DCG/B ratio of at least 0.425 (where B is the overall breadth dimension and DCG is the depth of the center of gravity). Some putter heads may include: (a) a ball striking face body member having a ball striking face with plural openings defined in its central portion; (b) a polymeric material mostly located behind an exterior surface of the ball striking face, wherein a portion of the polymeric material is exposed at the exterior surface of the ball striking face through the openings; and (c) a rear body member engaged with the ball striking face body member. Rear body members or portions thereof can be interchanged to allow for customization and/or better fitting of the putter to the user's putting stroke and/or tastes.

Abstract: Disclosed herein are golf clubs for reducing the spin imparted to a golf ball, the golf club having a gripping portion around which a golfer can position his hands to swing the golf club, a shaft having a first end and a second end, wherein the gripping portion extends from the first end of the shaft; and a club head extending from the second end of the shaft, the club head having a surface for striking the golf ball, and wherein the surface comprises a high-frictional material to reduce the rotation of a golf ball upon impact with the surface. The striking surface of the golf club may be treated in a variety of manners, including but not limited to placement of an insert into a cavity of a golf club head, material selection, surface material variation, and physical patterning of the surface on a micro-and/or nano-scale.

Abstract: A golf club head, and a golf club with the subject head. The head has a putter body that defines a front face and a golf club iron face that is integral with the putter body and presents an angled ball-striking face portion.

Abstract: A putter head has a front that strikes a golf ball during putting, a length a, a width b, a weight W, and a moment of inertia I. The width extends along a horizontal width axis perpendicularly intersecting the front of the putter head. The length extends along a horizontal length axis perpendicularly intersecting the horizontal axis. The dimensions are, for example, a?7 inches, b?a, and I/Wa2>0.30.

Abstract: When hitting a ball to a target with a putter, the ball often travels to a point which is deviated to the right from the target. When a golfer looks at the target just after taking his address, he turns his head to a target about a rotation axis which extends through the back of his head. When this rotation axis is not horizontal and an angle defined by the rotation axis and his sighting line to a putter head is not 90°, he has an optical illusion which tricks him into believing that he has to correct his address position. The putter of the present invention is provided with a thin-plate pendulum thereby allowing him to turn his head about the rotation axis while keeping the angle defined by the rotation axis and his sighting line at 90°.

Abstract: A golf club. The golf club includes a club head. The club head includes a clubface configured to make contact with a golf ball. The golf club also includes a shaft attached to the club head. The shaft includes a center axis. The golf club further includes an elliptical grip, wherein the elliptical grip includes a center axis. The center axis of the elliptical grip is non-parallel to the center axis of the shaft.

Abstract: A golf putter has a head and a shaft affixed to the head, the head having a front face for striking a ball and a rear face and is constructed and designed to assist the golfer in aligning the putter for propelling the ball to be putted in the desired direction. The head comprises a central section with a front face, the central section extending from proximate the head's front face towards the head's rear face and tapering rearward outwardly in width in plan, and a pair of side sections flanking sides of the central section, the side sections each having a front face adjacent the front face of the central section and being of a tapering configuration along the sides of the central section. The central sections and the side sections are oppositely transparent or opaque, allowing them to be visually distinguished from each other and providing visual cues for aligning the putter.

Abstract: Embodiments of face plates for golf club heads are disclosed herein. Other examples, and related methods are also disclosed herein.

Abstract: A golf club putting head includes a flexible cylindrical roller body having a striking face defined thereon and thereabout. The roller body has a central bore extending therethrough from end to end thereof and configured to mount the body over an axle on a lower end of a putter shaft such that the body can undergo rotation about and relative to the axle. The striking face on the body is yieldably conformable to the shape of a golf ball upon impacting the ball and is formed by an annular bed of multiple flexible projections formed on and about the body. The putting head also includes a pommel fitted on an outer end of the axle and configured for adjusting the rollability of the roller body on the axle so as to enable a player to hit the ball with an impact that will cause it to roll towards the hole.

Abstract: A putter-type golf club head having a face insert comprising a metal sheet and a urethane backing is disclosed herein. The metal sheet, which makes contact with a golf ball during use, includes a plurality of oval-shaped holes extending through the entire thickness of the sheet and having a specific size and spacing, and the urethane backing has a hardness that optimizes performance of the face insert, and thus the putter.

Abstract: A putter for use in a game of golf including a handle from which exends a shaft having a lower extension portion connected to a hosel mounted on a putter head having a front putting face, upper and lower surfaces and opposite side portions and wherein a central alignment groove extends along a central longitudinal axis of the head toward the putting face and wherein pairs of alignment members extend parallel on opposite sides of the central alignment groove and perpendicular to the putting face, and wherein at least one projection from the hosel is spaced above one of the pairs of alignment members and includes an alignment band for aligning with the one of pair of alignment members when the putter is addressed relative to a ball.

Abstract: A putter type golf club head 1 having a face 2 for hitting a ball on a front side has a head main body 1A provided in a face 2 side with a concave portion 3 and a face insert 1B made of an elastic material attached to the concave portion 3 of the head main body 1A. The face insert 1B has a three-layered structure composed of a first layer 8 disposed in a frontmost side, a third layer 10 disposed in a rearmost side and a second layer 9 sandwiched between the first layer 8 and the third layer 10, wherein hardnesses h1, h2 and h3 and moduli of repulsion elasticity r1, r2 and r3 of the first layer 8, second layer 9 and third layer 10, respectively, satisfy relationships: h1>h2, h3>h2, r1>r2 and r3>r2.

Abstract: Putter heads include one or more of a main putter body portion which may including a ball striking face member, a first arm, a second arm, a central member which aligns with the heel-to-toe center of the ball striking face. The central member may include a center portion through which a center line of the putter heads extends and a rear portion. The first arm and the second arm may be symmetrical with respect to the center line of the putter head. The first arm may be configured to be angled towards the center line of the putter head such that the first arm defines a first line which, when extended, is tangent to a portion of an outside diameter of a golf ball when the golf ball is positioned in front of the ball striking member with the center of the golf ball aligned with the center line of the putter head.

Abstract: The present invention relates to an improved golf putter head with a unique shape and. sighting and alignment system. The head has an annular-like body with an undulating rim edge. A transparent plate extends across the opening of the annular body bearing the alignment aid. The alignment aid may have a crosshair component. The surface of the annular body is provided with a camouflage pattern.

Abstract: A golf club head having a striking wall having a front surface, and a rear surface, a top surface, and a sole portion extending rearwardly from the rear surface, the sole portion having a forward end, a rearward end, an upper surface and a lower surface. The intersection of the upper surface and the rear surface defines an interior sole line. The intersection of the upper surface and the rearward end defines a trailing edge. A region on the upper surface includes variation of the height of the trailing edge or exterior sole line relative to the height of the interior sole line.

Abstract: Golf club heads include white diffusing top surfaces to aid in club head alignment. Wood type club heads also include a dark diffusing club face so that a crown/face border is emphasized. Scorelines in wood type clubs can be provided with an intermediate contrast surface, and can be displaced from club face center to accommodate player perception when confronted with a white diffusing crown. Putter heads can include dark diffusing alignment lines, and iron-type club heads can include white diffusing surfaces at a sole portion of a club face, at a top line, or a top portion of a club face.

Abstract: The putter face insert of the present invention reduces or eliminates backspin, and in some circumstances even imparts topspin, of a golf ball after impact with the putter face by including a contact surface with uniform thickness and at least one backing having non-uniform thickness. Generally, reducing initial backspin improves distance control and directional consistency of a golf ball when putting.

Abstract: A golf putter comprised of a shaft having an axis, a hosel attached to the shaft and a head attached to the hosel. The head of the putter has a face, a top and a sole. The face of the putter is comprised of multiple facets with a degree of static loft measured from the plane of the facet to the axis of the shaft. It is preferable that there are at least four facets on the face of the putter. The first facet is proximate to the sole of the face and has a first static loft angle. The second facet is above and abuts the first facet and has a second static loft angle which is greater than the first static loft angle. The third facet abutting and above the second facet has a third static loft angle which is greater than the second static loft angle. The fourth facet abuts and is above the third facet and has a fourth static loft angle which is greater than the third static loft angle. It is preferable that the static loft angles of said at least four facets differ by only 1 degree between abutting facets.

Abstract: Putter heads and putters include one or more of: (a) a main putter body portion including a first arm and a second arm; (b) a first polymeric and/or damping element engaged with the first arm; and (c) a second polymeric and/or damping element engaged with the second arm. The putter heads further may include polymeric material within the putter head structure and exposed at a central ball striking portion of the ball striking face, e.g., in elongated openings provided in the ball striking face. Grooves may be provided in the material of the ball striking face and/or in the exposed polymeric material to affect the ball launch. The putter heads may have various additional features or structures, e.g., relating to weighting features, alignment aid features, putter head constructions or parts, polymeric material exposure features, groove features, etc.