Abstract: A hollow golf club head with a concave portion is disclosed and claimed. The club head includes a metallic portion and a light-weight portion, which may be formed of plastic, composite, or the like. The concave portion allows the club designer to make a club head having very thin portions while still maintaining the requisite structural integrity. Convex bulges may optionally be provided to house weight inserts to enhance the playing characteristics of the golf club. The metallic portion of the club head may take on the appearance of a frame, into which several light-weight inserts are positioned. These light-weight inserts may be positioned in the crown, skirt, and sole of the club head. The club head may be formed by co-molding, eliminating the need for welding or adhesives, freeing mass to be used in more beneficial ways. The club head may be large to increase playability and forgiveness.

Abstract: A hollow golf club head with a concave portion is disclosed and claimed. The club head includes a metallic portion and a light-weight portion, which may be formed of plastic, composite, or the like. The concave portion allows the club designer to make a club head having very thin portions while still maintaining the requisite structural integrity. Convex bulges may optionally be provided to house weight inserts to enhance the playing characteristics of the golf club. The metallic portion of the club head may take on the appearance of a frame, into which several light-weight inserts are positioned. These light-weight inserts may be positioned in the crown, skirt, and sole of the club head. The club head may be formed by co-molding, eliminating the need for welding or adhesives, freeing mass to be used in more beneficial ways. The club head may be large to increase playability and forgiveness.

Abstract: A golf club incorporating an interchangeable shaft system includes a shaft, a shaft sleeve, a club head and a fastener. The shaft sleeve is coupled to an end of the shaft and is received in a hosel included in the club head. The fastener retains the shaft sleeve in the hosel. Hosel and shaft sleeve alignment features are provided that provide discreet orientations between the shaft and club head.

Abstract: A hollow golf club head with a concave portion is disclosed and claimed. The club head includes a metallic portion and a light-weight portion, which may be formed of plastic, composite, or the like. The concave portion allows the club designer to make a club head having very thin portions while still maintaining the requisite structural integrity. Convex bulges may optionally be provided to house weight inserts to enhance the playing characteristics of the golf club. The metallic portion of the club head may take on the appearance of a frame, into which several light-weight inserts are positioned. These light-weight inserts may be positioned in the crown, skirt, and sole of the club head. The club head may be formed by co-molding, eliminating the need for welding or adhesives, freeing mass to be used in more beneficial ways. The club head may be large to increase playability and forgiveness.

Abstract: A golf club incorporating an interchangeable shaft system includes a shaft, a shaft sleeve, a club head and a fastener. The shaft sleeve is coupled to an end of the shaft and is received in a hosel included in the club head. The fastener retains the shaft sleeve in the hosel. Hosel and shaft sleeve alignment features are provided that provide discreet orientations between the shaft and club head.

Abstract: A hollow golf club head with a concave portion is disclosed and claimed. The club head includes a metallic portion and a light-weight portion, which may be formed of plastic, composite, or the like. The concave portion allows the club designer to make a club head having very thin portions while still maintaining the requisite structural integrity. Convex bulges may optionally be provided to house weight inserts to enhance the playing characteristics of the golf club. The metallic portion of the club head may take on the appearance of a frame, into which several light-weight inserts are positioned. These light-weight inserts may be positioned in the crown, skirt, and sole of the club head. The club head may be formed by co-molding, eliminating the need for welding or adhesives, freeing mass to be used in more beneficial ways. The club head may be large to increase playability and forgiveness.

Abstract: A hollow golf club head with a concave portion is disclosed and claimed. The club head includes a metallic portion and a light-weight portion, which may be formed of plastic, composite, or the like. The concave portion allows the club designer to make a club head having very thin portions while still maintaining the requisite structural integrity. Convex bulges may optionally be provided to house weight inserts to enhance the playing characteristics of the golf club. The metallic portion of the club head may take on the appearance of a frame, into which several light-weight inserts are positioned. These light-weight inserts may be positioned in the crown, skirt, and sole of the club head. The club head is thus contoured such that its surface area is substantially large. The club head may also be formed of a single, relatively light-weight material.

Abstract: A golf club incorporating an interchangeable shaft system includes a shaft, a shaft sleeve, a club head and a fastener. The shaft sleeve is coupled to an end of the shaft and is received in a hosel included in the club head. The fastener retains the shaft sleeve in the hosel. Hosel and shaft sleeve alignment features are provided that provide discreet orientations between the shaft and club head.

Abstract: A hollow golf club head with a concave portion is disclosed and claimed. The club head includes a metallic portion and a light-weight portion, which may be formed of plastic, composite, or the like. The concave portion allows the club designer to make a club head having very thin portions while still maintaining the requisite structural integrity. Convex bulges may optionally be provided to house weight inserts to enhance the playing characteristics of the golf club. The metallic portion of the club head may take on the appearance of a frame, into which several light-weight inserts are positioned. These light-weight inserts may be positioned in the crown, skirt, and sole of the club head. The club head may be formed by co-molding, eliminating the need for welding or adhesives, freeing mass to be used in more beneficial ways. The club head may be large to increase playability and forgiveness.

Abstract: A hollow golf club head with a concave portion is disclosed and claimed. The club head includes a metallic portion and a light-weight portion, which may be formed of plastic, composite, or the like. The concave portion allows the club designer to make a club head having very thin portions while still maintaining the requisite structural integrity. Convex bulges may optionally be provided to house weight inserts to enhance the playing characteristics of the golf club. The metallic portion of the club head may take on the appearance of a frame, into which several light-weight inserts are positioned. These light-weight inserts may be positioned in the crown, skirt, and sole of the club head. The club head may be formed by co-molding, eliminating the need for welding or adhesives, freeing mass to be used in more beneficial ways. The club head may be large to increase playability and forgiveness.

Abstract: A hollow golf club head with a concave portion is disclosed and claimed. The club head includes a metallic portion and a light-weight portion, which may be formed of plastic, composite, or the like. The concave portion allows the club designer to make a club head having very thin portions while still maintaining the requisite structural integrity. Convex bulges may optionally be provided to house weight inserts to enhance the playing characteristics of the golf club. The metallic portion of the club head may take on the appearance of a frame, into which several light-weight inserts are positioned. These light-weight inserts may be positioned in the crown, skirt, and sole of the club head. The club head may be formed by co-molding, eliminating the need for welding or adhesives, freeing mass to be used in more beneficial ways. The club head may be large to increase playability and forgiveness.

Abstract: A golf club incorporating an interchangeable shaft system includes a shaft, a shaft sleeve, a club head and a fastener. The shaft sleeve is coupled to an end of the shaft and is received in a hosel included in the club head. The fastener retains the shaft sleeve in the hosel. Hosel and shaft sleeve alignment features are provided that provide discreet orientations between the shaft and club head.

Abstract: A golf club incorporating an interchangeable shaft system includes a shaft, a shaft sleeve, a club head and a fastener. The shaft sleeve is coupled to an end of the shaft and is received in a hosel included in the club head. The fastener retains the shaft sleeve in the hosel. Hosel and shaft sleeve alignment features are provided that provide discreet orientations between the shaft and club head.

Abstract: A golf club incorporating an interchangeable shaft system includes a shaft, a shaft sleeve, a club head and a fastener. The shaft sleeve is coupled to an end of the shaft and is received in a hosel included in the club head. The fastener retains the shaft sleeve in the hosel. Hosel and shaft sleeve alignment features are provided that provide discreet orientations between the shaft and club head.

Abstract: A hollow golf club head with a concave portion is disclosed and claimed. The club head includes a metallic portion and a light-weight portion, which may be formed of plastic, composite, or the like. The concave portion allows the club designer to make a club head having very thin portions while still maintaining the requisite structural integrity. Convex bulges may optionally be provided to house weight inserts to enhance the playing characteristics of the golf club. The metallic portion of the club head may take on the appearance of a frame, into which several light-weight inserts are positioned. These light-weight inserts may be positioned in the crown, skirt, and sole of the club head.

Abstract: A hollow golf club head with a concave portion is disclosed and claimed. The club head includes a metallic portion and a light-weight portion, which may be formed of plastic, composite, or the like. The concave portion allows the club designer to make a club head having very thin portions while still maintaining the requisite structural integrity. Convex bulges may optionally be provided to house weight inserts to enhance the playing characteristics of the golf club. The metallic portion of the club head may take on the appearance of a frame, into which several light-weight inserts are positioned. These light-weight inserts may be positioned in the crown, skirt, and sole of the club head. The club head is thus contoured such that its surface area is substantially large. The club head may also be formed of a single, relatively light-weight material.

Abstract: A golf club head is disclosed. The golf club head includes a first body member and a second body member. The first body member includes a strike face and a top portion. The second body member is coupled to the first body member and extends away from the first body member in a direction opposite the strike face. At least a top portion of the second body member is camouflaged. A preferred method of camouflage is color differentiation, wherein the second body member is darker than the first body member. Specific color values and club head geometries are also disclosed and claimed. The club head may include a body member and a weight member such as a bar that extends rearward from the body member. A cover may be included to camouflage the weight member. A separate core member and high visibility sight lines may also be provided.