Abstract: A golf club head for an iron-type club is provided. The club head includes a striking face, a slotted member and a first weight member. The striking face has a surface configured to engage a golf ball. The slotted member is positioned behind the striking face. The slotted member includes a slot network having at least two intersecting slots and at least three ends. The first weight member slidably engages the slot network to vary the position of the center of gravity of the golf club head with respect to the striking face.

Abstract: Clubs and clubheads are disclosed that allow the swing-weight thereof to be easily changed by attaching or exchanging a “weight-assembly” having a first portion configured as a “weight insert,” a second portion configured as an overcap, and a third portion configured as a drive screw. The drive screw extends through the overcap and into the weight-insert to assemble the weight-assembly, which fits into a weight-receiving cavity on the clubhead. These three components are made of respective materials (having respective densities) that are selected so that each component contributes a desired fraction of the total mass of the weight-assembly to the clubhead to achieve a desired change in swing-weight. By mix-match selection of the components, a wide range of masses of the weight assemblies can be made, with small increments therebetween.

Abstract: Embodiments of golf clubs head sets with varying characteristics are disclosed herein. Other examples and related methods are also generally described herein.

Abstract: A golf club head includes a wood type golf club head body. Further, the golf club head may include a mass ring that engages with the golf club head body. The mass ring may increase a moment of inertia of the golf club head body when the mass ring engages the golf club head body. The mass ring includes an opening in the center of the mass ring. Further, a portion of the exterior of club head body may extend through the opening in the center of mass ring. The mass ring may form a portion of the exterior of the golf club head body when the mass ring is engaged with the golf club head body. The mass ring may be engaged with the sole portion of the golf club head body. The mass ring may be engaged with the rear portion the golf club head body.

Abstract: Clubs and clubheads are disclosed that allow the swing-weight thereof to be easily changed by attaching or exchanging a “weight-assembly” having a first portion configured as a “weight insert,” a second portion configured as an overcap, and a third portion configured as a drive screw. The drive screw extends through the overcap and into the weight-insert to assemble the weight-assembly, which fits into a weight-receiving cavity on the clubhead. These three components are made of respective materials (having respective densities) that are selected so that each component contributes a desired fraction of the total mass of the weight-assembly to the clubhead to achieve a desired change in swing-weight. By mix-match selection of the components, a wide range of masses of the weight assemblies can be made, with small increments therebetween.

Abstract: A set of progressive golf clubs with an elliptical pad construction on the back of the striking face that corresponds to a location, shape and size of a predetermined golfer's impact pattern for the lofts and lengths of each of the golf clubs in the set. The elliptical pad progressively changes in location, shape and size from the long irons, to the mid irons, to the short irons, and to the wedges, based on the location, shape and size of a predetermined golfer's impact pattern for each of the long irons, mid irons, short irons, and wedges.

Abstract: An iron-type golf dub includes a conventional-weight section, a lightweight section and a heavyweight section. The conventional-weight section includes the hitting face and at least a portion of the hosel. The heavyweight section, made of a denser material than the conventional-weight section, includes the sole and an optional back flange. The lightweight section, made of a material less dense than either of the other sections, includes a core to which the other two sections are secured, such as by co-molding the core to the other two sections. The heavyweight section includes anchoring structures to which the lightweight section can securely attach. This arrangement maintains the overall weight of the club head compared to a similarly proportioned conventional club head while shifting the center of gravity low and aft. As such, the club head provides benefits such as forgiveness for thin shots, heel/toe shots, and provides longer drives with less roll.

Abstract: A set of golf clubs in accordance with at least some examples of this disclosure may include one or more iron-type golf club heads with a slot, or pocket cavity, behind the ball striking face of the golf club head. Further, one or more of the golf clubs in the set may include iron-type golf club heads with a split cavity or half cavity configuration. Additionally, one or more of the golf clubs in the set may include iron-type golf club heads of the blade-type. Also, one or more of the golf clubs in the set may include a hybrid-type golf club head with a cavity, or compression channel, extending through the bottom surface of the club head behind the ball striking face of the golf club head and one or more additional cavities extending through a bottom surface of the club head.

Abstract: Golf club heads are provided which include an iron type golf club head body including a ball striking face, a rear surface opposite the ball striking face (e.g., including a perimeter weighting member) and an weight member which is shaped and/or positioned to selectively control features of the golf club head. Golf clubs including these club heads and methods of making such golf club and golf club heads also are provided.

Abstract: Embodiments of golf club heads with loft-based weights and methods to manufacture golf club heads are generally described herein. Other embodiments may be described and claimed.

Abstract: A ball striking device, such as a golf club, includes a head that includes a face having a ball striking surface configured for striking a ball and a body connected to the face and extending rearward from the face. The face may be defined by a plurality of peripheral edges. The body has a receiver therein, and a weight member is connected to the body and is at least partially received by the receiver. The weight member is formed of a polymer material having a doping material embedded therein, with the doping material having a different density than the polymer material. Additionally, the weight member has connecting structure that engages a portion of the body to retain the weight member to the receiver.

Abstract: This set 2 includes n (n is an integer equal to or greater than 2) iron golf clubs. Each of the n clubs has a rail r1 extending backward from an intermediate position in a face-back direction of a sole. When a distance d1 between a leading edge Le and a rail starting point Sr is defined as d1(1), d1(2), . . . , d1(n) in an ascending order of a real loft angle from the club having the smallest real loft angle, the set 2 satisfies the following relation: d1(1)?d1(2)? . . . ?d1(n), and d1(1)<d1(n). Preferably, the set 2 satisfies the following relation: d1(1)<d1(2)< . . . <d1(n).

Abstract: An iron-type golf dub includes a conventional-weight section, a lightweight section and a heavyweight section. The conventional-weight section includes the hitting face and at least a portion of the hosel. The heavyweight section, made of a denser material than the conventional-weight section, includes the sole and an optional back flange. The lightweight section, made of a material less dense than either of the other sections, includes a core to which the other two sections are secured, such as by co-molding the core to the other two sections. The heavyweight section includes anchoring structures to which the lightweight section can securely attach. This arrangement maintains the overall weight of the club head compared to a similarly proportioned conventional club head while shifting the center of gravity low and aft. As such, the club head provides benefits such as forgiveness for thin shots, heel/toe shots, and provides longer drives with less roll.

Abstract: Clubs and clubheads are disclosed that allow the swing-weight thereof to be easily changed by attaching or exchanging a “weight-assembly” having a first portion configured as a “weight insert,” a second portion configured as an overcap, and a third portion configured as a drive screw. The drive screw extends through the overcap and into the weight-insert to assemble the weight-assembly, which fits into a weight-receiving cavity on the clubhead. These three components are made of respective materials (having respective densities) that are selected so that each component contributes a desired fraction of the total mass of the weight-assembly to the clubhead to achieve a desired change in swing-weight. By mix-match selection of the components, a wide range of masses of the weight assemblies can be made, with small increments therebetween.

Abstract: At least two golf clubs of a set, according to one or more aspects of the present invention, may include a strike face and a perimeter weighting element disposed behind the strike face. The perimeter weighting element may include an inner peripheral wall having a sole surface, a top surface, a heel surface, and a toe surface. A cavity, having a base surface, may be delimited by the inner peripheral wall and may include an insert disposed therein. The insert may comprise a primary element passively flexurally associated with one or more secondary elements and may be substantially identical for each head within the set. The primary element may be associated with the base surface and the at least one secondary element may be associated with at least one of the sole surface, the top surface, the toe surface, and the heel surface.

Abstract: Embodiments of golf club heads with loft-based weights and methods to manufacture golf club heads are generally described herein. Other embodiments may be described and claimed.

Abstract: An iron type golf club set includes a set of “n” iron type golf clubs, “n” being an integer of 3 or more, wherein the golf clubs each have a different face loft angle. If the head of each golf club is inclined at a specified lie angle with respect to a horizontal plane and the face is disposed at a specified loft angle with respect to a vertical plane, the head moment of inertia “A” per unit mass represented by a ratio MI/ml of the moment of inertia “MI” of the head alone around a horizontal axis passing through the head center of gravity and being parallel to the face with respect to the head mass “m” increases in the order from the golf club with the smallest loft angle to the golf club with the largest loft angle.

Abstract: A golf club head, golf club and a set of golf heads and clubs is provided with a center of gravity indicator mechanism housed on the rear side that may include a latitudinal strip and a center of gravity locator structure positioned on an axis transverse to the rear side and extending through the center of gravity of the body. The center of gravity locator structure may be fixed on a golf club head or may be variable. Additionally, a set of golf club heads is provided in which the center of gravity indicator mechanism is varied for each club in the set as the position of the center of gravity locator structure is varied for each of the golf club heads. The golf club heads may be coupled to shafts and grips and other features to form a golf club or golf club set.

Abstract: An iron-type golf club head is disclosed herein. The iron-type golf club head has multiple movable mass members which allow for the center of gravity to be moved at least 0.170 inch in a feel to toe direction and 0.070 inch in a crown to sole direction. Each of the movable mass members is preferably composed of a material having a density ranging from 12 g/cm3 and 14 g/cm3.

Abstract: A set of golf clubs in accordance with at least some examples of this disclosure may include one or more of the golf clubs which include an iron-type golf club head with a 3-piece configuration which may include a ball striking face; a golf club head body including a rear surface opposite the ball striking face, which may include a perimeter weighting member extending in a direction rearward from the ball striking face and along at least a portion of a circumferential area of the golf club head body; and an insert engaged with the golf club head body and positioned behind the ball striking face of the golf club head. Further, one or more of the golf clubs in the set may include iron-type golf club heads with a 2-piece configuration which may include a golf club head body and an insert engaged with the golf club head body. Additionally, one or more of the golf clubs in the set may include iron-type golf club heads with a 1-piece configuration.

Abstract: A set of golf clubs in accordance with at least some examples of this disclosure may include one or more iron-type golf club heads with a slot, or pocket cavity, behind the ball striking face of the golf club head. Further, one or more of the golf clubs in the set may include iron-type golf club heads with a split cavity or half cavity configuration. Additionally, one or more of the golf clubs in the set may include iron-type golf club heads of the blade-type. Also, one or more of the golf clubs in the set may include a hybrid-type golf club head with a cavity, or compression channel, extending through the bottom surface of the club head behind the ball striking face of the golf club head and one or more additional cavities extending through a bottom surface of the club head.

Abstract: A golf club head having a recess located in a top portion thereof between the heel and the toe and extending toward the sole. The recess may be only in the top line of the club head or extend from the heel around the toe. An insert may be placed within the recess. The insert may have a density that is less than the density of the club head body to lower the center of gravity and moment of inertia or greater than the density of the club head body to raise the center of gravity and moment of inertia.

Abstract: Embodiments of golf clubs head sets with varying characteristics are disclosed herein. Other examples and related methods are also generally described herein.

Abstract: The present invention is directed to a number of customized sets of iron-type golf clubs selected from a relatively small number of clubs. The multiple custom-fitted iron sets can be achieved by pivoting these sets off a common 6-iron. In a preferred embodiment, a portfolio of clubs contains seventeen forged iron-type golf clubs, wherein the clubs are a blended collection of oversized cavity back-type clubs, mid-sized clubs, and standard-sized muscle back-type clubs, which can be configured to create at least four custom-fitted iron sets pivoted off a common 6-iron.

Abstract: A set of progressive golf clubs with an elliptical pad construction on the back of the striking face that corresponds to a location, shape and size of a predetermined golfer's impact pattern for the lofts and lengths of each of the golf clubs in the set. The elliptical pad progressively changes in location, shape and size from the long irons, to the mid irons, to the short irons, and to the wedges, based on the location, shape and size of a predetermined golfer's impact pattern for each of the long irons, mid irons, short irons, and wedges.

Abstract: A ball striking device, such as a golf club, includes a head with a face having a ball-striking surface configured for striking a ball, a body connected to the face, and at least one channel in the ball-striking surface of the face. The region of highest COR response of the face is directionally enlarged toward the channel. Depending on the size, shape, and location of the channel, the face can be altered to provide greater COR response and increased energy transfer for impacts at specific locations on the face.

Abstract: The present invention is directed to an iron-type golf club that may be included in a set. In particular, the inventive golf club includes an adjustable hosel coupling and a mechanism for altering the sole configuration. The golf club may be included in a set having a progressive sole configuration that provides desired bounce for each club within the set.

Abstract: A golf club head is disclosed that includes a weight integral to a bridge member extending across a cavity back golf club head. The weight modifies a position of a center of gravity of the golf club head. The weight is independently movable in multiple directions to further vary the center of gravity of a golf club head.

Abstract: The present invention relates to a set of at least three golf clubs having different club length Lk. The golf clubs 14; 20 comprises a shaft 21 with an upper end and a lower end, a grip section 22 on the upper end of the shaft, and a head 23; 30; 40 with a ball-striking surface mounted on the lower end of the shaft. The club length Lk of each golf club decreasing through the set and a value 61, 65, 75; 62, 66, 76; 63, 67, 77; 64, 68; 78 of at least one torsional moment PCF; HCF; ICF; GCF for each of the at least three golf clubs when swung by a golfer differs from each other. A linear function 71, 72, 73, 74 of club length Lk is based on the values of at least one torsional moment.

Abstract: The present invention relates to a set of golf club irons in which some of the club heads have a hollow space, and some of the club heads do not have a hollow space. The hollow space is preferably defined by a lower portion of the front face, a portion of the sole, and a rear wall. The presence of the hollow space moves the club head center of gravity back (away from the face) and down (toward the sole), making it easier to get a golf ball airborne. The volumes of the hollow spaces generally transition or get progressively smaller with an increase in the club loft angle, thus altering the center of gravity location and moments of inertia by different amounts for different clubs. The hollow spaces may be empty or filled, in whole or part.

Abstract: Embodiments of golf clubs head sets with varying characteristics are disclosed herein. Other examples and related methods are also generally described herein.

Abstract: An iron-type golf club includes a conventional-weight section, a lightweight section and a heavyweight section. The conventional-weight section includes the hitting face and at least a portion of the hosel. The heavyweight section, made of a denser material than the conventional-weight section, includes the sole and an optional back flange. The lightweight section, made of a material less dense than either of the other sections, includes a core to which the other two sections are secured, such as by co-molding the core to the other two sections. The heavyweight section includes anchoring structures to which the lightweight section can securely attach. This arrangement maintains the overall weight of the club head compared to a similarly proportioned conventional club head while shifting the center of gravity low and aft. As such, the club head provides benefits such as forgiveness for thin shots, heel/toe shots, and provides longer drives with less roll.

Abstract: A set of iron-type golf clubs includes long, mid- and short irons with channel back configurations and a mass control insert. The mass of the insert is systematically varied through the set such that the mass distribution properties of the set may be systematically varied while retaining a continuous look and feel through the set. The mass of the insert is varied by altering the volume or the density of the insert through the set. Additional design parameters for the set may also be systematically varied through the set, such as groove type and depth, loft angle, cavity volume, hitting face roughness, and sole width. In one embodiment, the mass control insert comprises a dense insert and a lightweight cover. The density of the dense insert can be easily varied to change the mass distribution properties of the club head. One application of the mass control insert is to provide customization of the club head at the point of sale or distribution.

Abstract: Described herein are iron golf club heads and sets of iron golf clubs that have variable weight distribution. Each iron golf club head has a cavity and a groove with a raised portion disposed therein. The groove and the raised portion can deepen the center of mass depth and lengthen the effective face length of the iron golf club. The width of the groove may vary between each golf club in a set of iron golf clubs, such that the width of the groove of the long irons is greater that the width of the groove of the middle irons, and the width of the groove of the middle irons is greater than the width of the optional groove of the short irons. Other aspects, embodiments, and features are also claimed and discussed.

Abstract: Golf club irons having improved forgiveness, playability and performance characteristics are disclosed. The embodiments set forth parameters of various irons that affect performance either alone or in combination with other parameters when the irons are utilized to strike a golf ball. The parameters, which in some cases may be systematically progressed or varied, include golf club shaft length, striking face area, loft, coefficient of restitution, face thickness, topline thickness, swing weight, sole width at the heel and toe, and other performance characteristics.

Abstract: Groove depths D1 of clubs are defined as D1(1), D1(2), . . . , D1(n) in an order from the club having the smallest real loft angle L1, and groove widths W1 of face lines of the clubs measured by the 30 degree method of measurement are defined as W1(1), W1(2), . . . , W1(n) in an order from the club having the smallest real loft angle L1. At this time, a golf club set satisfies D1(1)?D1(2)? . . . ?D1(n). A ratio [D1(m)/D1(m?1)] of the groove depths D1 between two golf clubs with adjacent club numbers is 1.0 or greater and 3.0 or less. The golf club set satisfies W1(1)?W1(2)? . . . ?W1(n). A ratio [W1(m)/W1(m?1)] of the groove widths W1 between two golf clubs with adjacent club numbers is 1.0 or greater and 3.0 or less.

Abstract: Golf club heads which include an iron type golf club head body including a ball striking face, a rear surface opposite the ball striking face (e.g., including a perimeter weighting member) and an indicator which indicates the location of the center of gravity of the golf club head body. Golf clubs including these club heads and methods of making such golf club and golf club heads also are provided.

Abstract: A set of golf clubs including golf club heads having improved mass distribution characteristics. The set includes golf club heads having a club head main body including a hitting face and a face support, a muscle back shell and a weight insert.

Abstract: A cavity back golf club head having a bridge member is disclosed. The bridge member extends across a first rear cavity connecting a heel and a toe of the golf club head to control the trajectory of a golf ball. For the longer iron clubs, a wall extending from the sole portion of the cavity back golf club head to the bridge member defines a second cavity to further influence the trajectory of the golf ball. For the shorter iron clubs, the wall extends from the top portion of the cavity back golf club head to the bridge member.

Abstract: A golf club head includes a wood type golf club head body having a first portion that extends from the top portion to the sole portion and includes a first depth of the golf club head body, and a second portion that extends from the top portion to the sole portion having a second depth smaller than the first depth. Further, the sole or top portion of the golf club head body is configured so that it includes a sloped boundary portion that defines a transition in depth between the first portion and the second portion of the golf club head body. The first portion and second portion may be configured so that a center of gravity of the golf club head body is positioned nearer to the heel side than the toe side of the club head.

Abstract: Aspects of this disclosure relate to a golf club head which includes a wood type golf club head body including a ball striking face portion at a front side thereof, a rear side opposite the front side, a crown portion, and a sole portion. Further, the sole or crown or rear portion of the golf club head body may be configured so that the golf club head body includes a bump portion which protrudes from the sole or crown or rear portion and an indented portion which recedes into the sole or crown or rear portion and creates a recess in the sole or crown or rear portion of the golf club head body. Further, the bump portion and the indented portion may be configured so that a center of gravity of the club head body is nearer to one of the heel edge of the club head body and the toe edge of the club head body.

Abstract: A ball striking device, such as a golf club, includes a head with a face having a ball-striking surface configured for striking a ball, a body connected to the face, and at least one channel in the ball-striking surface of the face. The region of highest COR response of the face is directionally enlarged toward the channel. Depending on the size, shape, and location of the channel, the face can be altered to provide greater COR response and increased energy transfer for impacts at specific locations on the face.

Abstract: The present invention is directed to a set of iron-type golf clubs having a progressive sole configuration through the set. In particular, the inventive golf clubs include a consistent relationship between the ground contact and center of gravity throughout the set and a progressive sole configuration that provides desired bounce for each club within the set. The progressive sole configuration includes a progressive sole camber throughout the set of iron-type golf clubs.

Abstract: A golf club includes a golf club head having a body, a ball-striking face member and one or more mass members. The body extends from a shaft-attachment structure. The ball-striking face member is located on a front surface of the body. The body is configured to releasably accommodate a first mass member in a first region on its back surface and a second mass member in a second region on its back surface. At least one of the first and second mass members may be releasably attached to the back surface. The ball-striking face member may have an average density that is less than the average density of the body. The mass members may have an average density that is more than the average density of the ball-striking face member and/or of the body. The mass distribution of the club head may be customized via the selection and attachment of a particular mass member. The golf club head may be an iron-type golf club head.

Abstract: Golf club heads are provided which include an iron type golf club head body including a ball striking face, a rear surface opposite the ball striking face (e.g., including a perimeter weighting member) and an weight member which is shaped and/or positioned to selectively control features of the golf club head. Golf clubs including these club heads and methods of making such golf club and golf club heads also are provided.

Abstract: A set of iron-type golf clubs includes long irons with channel back configurations and short irons with cavity back configurations. The rear face configurations transition from channel backs through to pure cavity backs for increased performance continuum for the set. Additional design parameters for the set may also be systematically varied through the set, such as groove type and depth, loft angle, cavity volume, hitting face roughness, and sole width. At least one of the clubs of the set includes a sandwich-type construction for the hitting face having a dampening element disposed between a hitting face insert and a lightweight reinforcing core. In one embodiment, at least one club head is oversized.

Abstract: A golf club according to one or more aspects of the present invention may have a mass less than 300 g, a length greater than about 45 inches, a swing weight between D0 and D6, a head weighing less than about 200 g, a club-head volume of at least about 360 cm3, a grip weighing less than about 50 g, and a shaft having a tip end, a butt end, and a shaft balance point located no more than 24 inches from the butt end. The shaft may have a torsional displacement angle greater than about 5.5° and a mass less than about 50 g. A coordinate system having x-, y-, and z-axes may have its origin at the center of gravity of the club head. The golf club head may have a moment of inertia of at least about 4500 g·cm2 about the z-axis and a moment of inertia of at least about 3000 g·cm2 about the y-axis.

Abstract: Golf club heads which include an iron type golf club head body include a ball striking face, a rear surface opposite the ball striking face (e.g., including a perimeter weighting member) and a multi-legged bridge member which indicates the location of the center of gravity of the golf club head body. Golf clubs including these club heads and methods of making such golf club and golf club heads also are provided.

Abstract: Golf clubs having improved features and a golf swing training device are disclosed. In one embodiment, the golf club has a club head made of at least one material having a first specific gravity, and at least one weighting portion that has a higher specific gravity than the first specific gravity of the material forming the main body of the club head. In another embodiment, the golf club has a club head of the “iron” type, and the club head has a sole that is provided with “bounce” thereon. In another embodiment, the golf club has a club head of the “iron” type that has a configuration that provides it with improved ability to cut through the “rough” on the golf course. In another embodiment, the golf club has a club head having a club face with at least one portion thereof that has a thickness that is modified to account for a groove in the striking surface of the club face.

Abstract: Embodiments of golf club heads with loft-based weights and methods to manufacture golf club heads are generally described herein. Other embodiments may be described and claimed.