Abstract: A shot control hosel is disclosed for customizing golf clubs. The disclosed embodiments of the invention provide a set of hosels, each hosel having a conical body. The body has a central axis, a top portion and a bottom portion. A cylindrical opening extends from the top portion to the bottom portion and is adapted to accommodate a golf club shaft. A flange may be provided on the body and may be adapted to engage a notch within a bore of a golf club head. A resilient barb on the smaller of the top portion and the bottom portion is provided to secure the hosel within the bore.

Abstract: A shot control hosel is disclosed for customizing golf clubs. The disclosed embodiments of the invention provide a set of hosels, each hosel having a conical body. The body has a central axis, a top portion and a bottom portion. A cylindrical opening extends from the top portion to the bottom portion and is adapted to accommodate a golf club shaft. A flange may be provided on the body and may be adapted to engage a notch within a bore of a golf club head. A resilient barb on the smaller of the top portion and the bottom portion is provided to secure the hosel within the bore.

Abstract: An improved golf driver club head wherein each driver club head has a tensioning device, which places the peripheral/outer structure of the club head in compression; thereby, resulting in a stronger, more rigid club head structure. In the preferred embodiment, the tensioning device comprises an elongated cylindrical member having respective end members. The top and bottom surfaces of the golf club head are each provided with a cylindrical depression or recess and an aperture or passage at the lower end of the depression. The passages are just large enough to accommodate the tensioning device, but are too small to pass the respective end members. During club head manufacture, the length of the device is selected to apply a compressive force between the head surfaces. Fine adjustment is accommodated by a threaded end member. The actual compression force may be selected to yield the best performance depending on the geometry, structure and material of the club head.

Abstract: An improved golf driver club head wherein each driver club head has a tensioning device which places the peripheral/outer structure of the club head in compression thereby resulting in a stronger more rigid club head structure. This is accomplished by affixing the tensioning device to the crown (top) surface of the club head and to the sole (bottom) surface of the metal head. The device is affixed to the two surfaces of the club head and is pre-tensioned. The tensioning may be accomplished by compressing the two club head surfaces together then affixing the device to the opposed surfaces so that the surfaces are held in state of relative compression. Another way this can be accomplished is to affix the device to the two club head surfaces either through a hole or boss and to adjust the device by threading, gluing or other form of fastening. In the preferred embodiment the tensioning device comprises an elongated cylindrical member having respective end members.

Abstract: An improved set of golf club irons wherein each golf club iron club head has a structure for redistributing weight of the club head towards the perimeter thereof particularly in the rear cavity region. This is accomplished by enlarging the rear cavity surface, creating an undercut between said rear cavity surface and cavity perimeter further redistributing available weight toward the club head perimeter. In addition, the club head face thickness is reduced between the rear cavity surface and hitting surface allowing additional weight to be redistributed to the club head perimeter resulting in a larger thin faced cavity. The large thin faced cavity is reinforced by means of a lightweight web-like structure comprised of thin lightweight buttresses which protrude outward from the center of the cavity and intersect with the undercut and perimeter of the cavity.

Abstract: A digital, differential signal processor for measuring, digitizing and storing a plurality of analog electrical potentials and for calculating selected potential differentials for display. Each analog, electrical potential is filtered and amplified in a signal conditioner and then its values at successive instants in time are converted to digital data by an analog to digital converter. The digital data that is output by the converter is stored for later recall. A computer calculates each selected differential potential by calculating the numerical difference between the digital data for the two potentials for which the differential is to be determined. The differential, as a function of time, may be displayed in real time or at a later time based upon the stored data. A multiplexer allows one analog to digital converter to process the signals output from a plurality of signal conditioners.

Abstract: An improved set of golf club irons, wherein each golf club iron head has a structure for redistributing weight of the club towards the perimeter thereof, particularly in the rear cavity region. This is accomplished by increasing the volume of the cavity by using an undercut perimeter which permits weight redistribution for example to increase the thickness of the top line, the toe and the sole of the club head. However, the undercut portion of the invention is sealed from moisture, dirt and other potentially detrimental materials that might otherwise accumulate therein during play. Such sealing is accomplished by means of a low density insert which is preferably made of a low mass density material such as plastic, rubber, epoxy or low density metal material such as titanium or aluminum. An additional feature of the present invention comprises an aspect of the structure thereof which varies from club to club in a set of irons.

Abstract: An improved golf club bag has a divider top that is adapted to receive golf clubs in a manner which properly distributes the golf clubs within the bag to balance the distribution of the weight, thereby providing a substantially stable center of gravity throughout the game. The golf bag comprises a golf club chamber which is of a generally elongated rectangular configuration but which has a golf club divider at the top thereof which divides and separates the golf clubs into a plurality of discrete golf club holding sections. Each such section may be considered as having two discrete portions, one on each side of the centerline of the golf club bag, each such portion being different in size and shape from the other. Each such section comprises a large portion and a small portion. The large portion is designed to accommodate more golf clubs than the small portion.

Abstract: An improved golf club head having a face or ball striking surface comprising a plurality of dimples, punch marks or depressions each of which is at least 0.02 inches deep and which, in a preferred embodiment, is characterized by a cross-section of truncated conical shape having a planar base having a diameter of at least 0.04 inches and a curved upper portion for merging tangentially into the adjacent face surface to form a surface diameter of at least 0.06 inches. A large array of equally spaced depressions provide substantially constant friction or spin force on the golf ball irrespective of angular deviations of the face from perpendicularity with the ball striking direction of the club head at the point of impact. The inventive club head is particularly advantageous in high loft configurations such as a wedge.

Abstract: An improved golf club iron head utilizes a composite structure of two different weight densities to transfer weight from the hosel and heel to the ball-impact region of the head. The disclosed embodiment comprises the combination of a lightweight composite material in the outlying structural portions of the head and a metallic insert to form the majority of the face, the sole and a backweight to improve weight distribution, utilization of material mass and control of the location of the center of gravity.

Abstract: A measurement apparatus primarily for use during the purchase of golf clubs for indicating angle modifications between head and shaft needed to assure zero angle between the sole and the underlying surface for a particular golfer. The apparatus comprises a club simulation member having a shaft and grip of a conventional golf club but terminating at its non-grip end in a yoke member. The yoke member is attached to a hinge bracket which is, in turn, attached to a pointer positioned at a predetermined angle relative to the axis of the shaft. The pointer is positioned within a housing preferably covered by a face of which at least a portion is transparent to permit observation of the angular position of the pointer when the golfer grasps the club simulation member in a ball addressing configuration. The face may also advantageously provide indicia to permit convenient observation of the angle of the pointer which may easily be calibrated to correspond to the angle between the shaft and the underlying surface.