Abstract: An iron-type lofted golf club with parallel grooves across the sole of the club head, the grooves having straight flat parallel sides and respective straight flat floors having longitudinal axes which are substantially horizontal when the sole engages substantially horizontal ground as the club is swung, so as to leave lines of ground matter generally undisturbed.

Abstract: A golf putter having a monolithic head consisting of a section of a composite intrusive igneous rock having a generally ellipsoidal flattened shape that has been sliced diagonally. The top of the section is drilled to receive the bottom end of the club shaft.

Abstract: A golf club with a club head having a front ball striking face, and top and bottom walls. The striking face has a configuration which gradually narrows downwardly to form a relatively blunt lower apex on the perimeter of the face. The bottom wall surface extends rearwardly and upwardly from the lower edge of the striking face toward the top wall surface. The striking face configuration and the bottom wall surface configuration substantially reduces turf contact and drag resistance on both the back and forward swings. The striking surface has a pitch angle with loft to lift and fly the golf ball over intervening turf onto a golf green.

Abstract: A golf driver club and a method for making a golf driver club comprising the steps of:applying a curable coating composition comprising polytetrafluoroethylene to exterior surfaces of a driver head to provide a wet coated driver head;drying the wet coated club driver head by heating at elevated temperatures of from about 350.degree. F. to about 400.degree. F. for from about 4 to about 10 minutes to provide a dried driver head;curing the dried driver head by heating at an elevated temperature of from about 790.degree. F. to about 820.degree. F. for a period of from about 4 to 8 minutes, and thereafter, heating at a temperature of from about 700.degree. F. to about 800.degree. F. for a period of from about 10 to about 30 minutes to provide a driver club head having a cured, firmly adherent coating disposed thereon.

Abstract: A metal wood type golf club head having a c-shaped aerodynamic configuration formed in the bottom surface adjacent a rear surface and having an open end extending forwardly toward the ball striking face in combination with a skid surface.

Abstract: An adjustable golf putter having a shaft, a putter head and an angle adjusting adapter for adjusting the angle between the shaft and the putter head. The adapter has two sets of a plurality of holes arrayed along two arcs of circle opposite each other into which a pin extending from the lower part of the handle shaft and a pin extending from the rear surface of the putter are inserted respectively to define a preselected shaft to putter head angle such angle being defined by the combination of two of the plurality of holes. The combination of two sets of holes in two arcs of circle allows adjustment of the shaft to putter head angle in increments which are smaller than the distance between two adjacent holes.

Abstract: A golf putter has a pair of rails projecting downwardly from the sole of the head and oriented in the striking direction, thus raising the center of gravity of the head to the same level as the center of gravity of the ball and the striking point on the face of the putter.

Abstract: A golf putter includes a handle having a lower end to which a head is fixed. The head has a left side face and a right side face. The left and right side faces are symmetrical to each other and may both be used to putt a golf ball. The head further has a front face which may also be used to putt the golf ball as the player stands facing the target hole and spaces his or her legs on both sides of the ball. The putter is then swung under the crotch and between the legs of the player as a pendulum to putt the ball with the front face thereof which is substantially normal to the horizontal as it gets into contact with the ball. The handle of the putter is shortened as compared to the conventional putter to facilitate the swinging operation.

Abstract: A golf club head comprising toe and heel portions, a front wall defining a ball-striking face, and top and bottom walls, the bottom wall characterized as having a medial ridge, and as forming two shallow recesses, one recess between the ridge and the heel portion, and the other recess between the ridge and the toe portion, the recesses everywhere spaced rearwardly from the front wall, the one recess having an arcuate peripheral edge generally convex toward the heel portion, and the other recess having an arcuate peripheral edge generally convex toward the toe portion.

Abstract: The invention relates to a golf club head and a method of manufacturing the same, the external surface of which a plate is attached as a sole plate or face plate. A pair of protruding pieces which protrude approximately in the opposite direction with respect to the center of the plate are provided in the periphery of the plate, and the protruding pieces are respectively embedded in a head body of the golf club head. The ends of the protruding pieces are extended so that they are exposed onto the external surface of the head body. By this arrangement, the plate can be positively fixed to a predetermined position without causing removal from the head body, and thus there is no possibility that the plate comes off from the head body even if an impact is given to the head body when a ball is hit.

Abstract: A multi-functional golf club head, designed to be used as a putter and/or chipper, depending on the location of the golf ball. The club head includes golf ball centering indicia on a top face, an angled striking surface, and rails on a flat bottom surface. The ball centering indicia are designed to assist the golfer in aligning the golf ball with the target and the best striking area of the club head. The striking surface of the club head is angled to loft or chip the golf ball from various locations on the golf course, by employing a putting stroke. The rails allow the golfer to chip the golf ball with a smooth putting stroke over fringe grasses. The rails are blunted or curved at the front of the club head so that the head does not catch or snag on a putting surface during a putting stroke.

Abstract: A golf club (10) having a club head (16), the head having a face (18), a top portion (20) and a sole (22), the sole having at least one channel (32,34) defined thereon, and the or each channel having a cambered surface (44). A golf club having a club head, the head having a face, a top portion and a sole, the sole having at least one channel defined thereon, the or each channel (32,34) increasing in size away from the face. A golf club comprising a shaft and a club head, the club further comprising a streamlined hosel (14) between the shaft and club head which is asymmetrical thereby to produce a sideways force on the golf club while swinging the golf club.

Abstract: The present invention entails a golf club head having a face, back sole and a leading edge extending between the sole and the face. The sole is shaped such that there are three distinct and separate Surfaces defined thereon. There is an intermediate surface formed on the sole that forms a plateau. On each side of the intermediate plateau there is defined on the sole an outer surface area. One outer surface area breaks away from the plateau and extends generally upwardly towards both the leading edge and the heel of the club. The other outer surface breaks away from the plateau and extends generally upwardly towards the leading edge and the toe area of the club.

Abstract: An iron type golf club head having a secondary outermost perimeter weight extending outwardly from the outer peripheral surfaces of the club head in the form of an outermost keel-shaped weight member which further displaces the mass of the club head from the center of percussion.

Abstract: In a metal golf club head, a recess portion with a closed bottom is formed in a bottom surface of a hollow shell cast of metal, and a sole plate, made of metal greater in specific gravity than the shell, is received in and secured to the recess portion in such a manner that the sole plate lies flush with that portion of the bottom surface disposed adjacent to a peripheral edge of the recess portion. The sole plate can withstand an impact produced when hitting a ball, and is prevented from becoming disengaged from the shell.

Abstract: A wood-type golf club head comprising toe, heel, top and sole portions, a front face bounded by the toe, heel, top and sole portions, and a rear wall bounded by the toe, heel, top and sole portions, a peripheral wall depending from the periphery of the sole portion to define a sole cavity in the sole portion, and two struts extending from a portion of the peripheral wall adjacent the front face to a portion of the peripheral wall adjacent the rear wall, the struts being in part substantially parallel to each other and in part diverging from each other and defining therebetween and in cooperation with the portion of the peripheral wall adjacent the front face, a central portion of the sole cavity, the peripheral wall being interrupted adjacent the rear wall, such that the central portion of the sole cavity is open to the rear of the club head.

Abstract: A golf putter includes a sighting line formed by the intersection of two faces, a narrow bottom surface and a striking face having a cut out portion therein. The intersection of the two faces improves sighting for putting stroke with the narrow bottom and striking face cutout permitting putting in heavy grass conditions. The putter also has a curved bottom which permits making both a hit-down stroke and a lofting stroke and means for adjusting the overall weight thereof.

Abstract: A golf club head is disclosed having a body including a striking face and a sole, the sole having a generally double-convex profile defining separate convex bounce surfaces. These convex bounce surfaces provide for decreased frictional drag induced between the ground and the sole of the club head during a typical golf club swing. In a further embodiment, the body of the golf club head includes therein a cavity opposed to the striking face, the cavity opening away from the sole. The cavity of this embodiment is relatively shallow, as the body of the club head is truncated such that only a generally planar region of the body extends therefrom. This planar region includes a portion of the striking face. Accordingly, to this form of the present invention, a club head is provided having optimal weight-balancing and performance characteristics.

Abstract: A golf putter has an elongated shaft, a neck, and a club head. The neck extends between the shaft and the club head. The club head has a striking face and a rear wall opposite the striking face, a top surface and a sole surface opposite the top surface. The top surface of the club head is oversized and in shape of a parallelogram. The breadth of the club head being at least 3.0 inches, preferably between 3.0 and 4.5 inches. The longitudinal axis of the shaft and the striking face of the club head is coplanar. In a preferred embodiment the shaft longitudinal axis is sub-perpendicular to the longitudinal axis of the striking face of the club head. In one embodiment the sole surface of the club head is sloped. In a preferred embodiment the sole surface has two cavities separated by a strut extending from the striking face of the club head to the rear wall.

Abstract: In a golf putter the head of the putter has a receptacle having a shape which in part conforms to the shape of a golf ball and has an opening in the bottom of the putter head. The opening is adapted to partially receive a golf ball, the bottom surface of the club is raised across the front and rear portions of the receptacle which allows for the smooth movement of the putter over the grass.

Abstract: A golf club includes a shaft and a head with a club face connected to the lower end of the shaft. A ground engageable guide surface is provided on the head. The guide surface is mounted laterally next to the face of the head and extends toward the front and toward the top. The guide surface may be mounted so as to be adjustable relative to the head or the shaft of the club. The guide surface is mounted on an intermediate piece which is removably attached to the shaft on a side of the head facing away from the club face of the head. The guide surface may be formed by a resilient plate-shaped member.

Abstract: A golf club head comprising a shell having toe and heel portions, a rear wall, a front wall defining a ball-striking face, and top and bottom walls, the bottom wall characterized as having a medial ridge, and as forming two dished shallow recesses, one recess between the ridge and the heel portion, and the other recess between the ridge and the toe portion, the recesses spaced rearwardly from the front wall, the one recess having an arcuate peripheral edge generally convex toward the heel portion, and the other recess having an arcuate peripheral edge generally convex toward the toe portion, the recesses being located in substantially mirror imaged positions with respect to a forwardly extending vertical plane bisecting the ridge, the head, when viewed toward the bottom wall, presents a peripheral outline which, at the toe and rear of the head, has substantial spacing from the other dished shallow recess.

Abstract: An improved putter including a pair of runners attached to the bottom of the putter head. The runners take up less than the entire surface of the bottom of the golf club. They raise the blade of the putter above a ground surface. Their surface area is less than that of the bottom of the golf club, so the interaction with the ground is significantly reduced. This minimizes the interaction between the putter's blade and the ground during putting. The chances that the putter squarely strikes the ball without catching on the ground is increased. The runners also raise the blade to a level to at or near the golf ball's equator. This improves the probability of the blade striking the ball with an upward blow during a swing. The upward blow imparts a desirable top-spin roll on the ball. Undesirable spins which make the ball deviate from its intended path, such as back spin or side spin, are eliminated.

Abstract: An iron type golf club head with an improved sole construction including cavities and/or projections in various shapes. The cavities and projections on the sole are spaced behind the leading edge of the club head and include a substantially vertical wall facing the leading edge of the golf club head.

Abstract: A putter having a uniquely-shaped head designed to enhance the use of the club. The head has two `J`-shaped end sections that function to balance the head while visually framing a center section of the head. The front face of the head is located at an elevated position atop a multicurved bottom surface. The shaft of the club is received in the head's central section at a point between the head's front and rear surfaces.

Abstract: A golf putter having a cylindrical head having a diameter substantially equal to the diameter of a golf ball, with symmetrical characteristics of the axis of the shaft intersecting both the axis of the head and the mid-point of the head. This design also incorporates counterbores at either end of the head and slots across the bottom of the cylinder head parallel to the direction of movement of the head. To reduce resistance with either the ball or the putting surface, the head may also be coated with a friction reducing material such as Teflon.

Abstract: This invention relates to a golf club head which can be stably placed on the ground at address so that a face of the head can be properly directed toward a ball. In a golf club head, a convex portion is formed on a sole of a head body, and when the head body is inclined an angle of 5.degree..about.20.degree. from a lie angle to bring a heel of the head body toward the ground, the convex portion is brought into contact with the ground at a face side, a back side and a toe side of a point of intersection between the sole and an axis of a shaft connected to the head body.

Abstract: It is an object to provide a golf club comprising a head including a face having a loft angle of 70 to 90 degrees. Preferably, grooves are formed in the face of a head in the longitudinal direction of the face, and the back surface of the head has a slowly bulgy form or grooves are formed on the back surface of the head in the transverse direction of the back surface. Since the loft angle is 70 to 90 degrees, it is possible to loft up a ball almost directly overhead.

Abstract: A golf club or set of golf clubs include a sole having three surfaces: a positive bounce surface, a trailing sole surface and a crescent surface therebetween. The crescent surface has a generally straight front boundary and a curved rear boundary. Moreover, the crescent surface has a bounce angle such that there is a contact point substantially in the center of the rear boundary of the crescent surface.

Abstract: A golf clubhead includes a projection which extends downwardly from the sole of the clubhead. The projection extends rearwardly from the face of the clubhead and away from the heel of the clubhead. The projection extends generally in the direction in which the clubhead is moving when it impacts a golf ball.

Abstract: A golf putter for striking a golf ball, said golf putter comprising:a putter head, which with reference to a front vertical planar reference surface and a bottom horizontal planar reference surface, includes a top, a sole opposite said top and tangent to said bottom reference surface, a heel, a toe, a rear surface, and a striking face having a sweet spot and a striking axis extending therethrough; the putter head further comprising a cut-out portion extending from the toe of the putter head to the heel of the putter head, at the intersection of the striking face and the sole of the putter head, the cutout portion defined by a first, substantially vertical plane, and a second, substantially horizontal plane the second plane located at a distance D1 above said reference bottom surface, said first and second planes intersecting along a line located at a distance D2 equal to D1 from outermost edge of the striking face, said outermost edge being the intersection of the striking face and said second substantially h

Abstract: A putting apparatus and method are disclosed which provide for an elongate sighting member disposed directly behind a striking face that has a diameter about the same as that of a golf ball. The elongate sighting member is oriented in the direction of the hole. A fin member extends radially outwardly from the body of the elongate sighting member. The fin member is designed for engagement with the surface of the putting green and is spaced so that it places the striking face at the desired vertical orientation so as to impart overspin on the ball.

Abstract: A rolling head putter that comprises a standard design putter head in conjunction with an axle and rotatable roller. The axle supports the roller and provides for free rotation of the roller in a direction orthogonal to the direction of the line of sight in the direction of the putt. The roller is mounted behind the leading edge of the putter and may have a resilient outer surface, and extends below the lower surface of the putter head such that the putter head rests on and glides across the ground surface on the roller. In a preferred embodiment, the axle and roller are contained within and bounded by a cavity that penetrates the putter head, such that the overall perimeter of the putter head is of similar size and shape to generally available standard putter heads.

Abstract: A golf club is disclosed herein having aerodynamic characteristics reducing drag resistance to maintain maximum head speed which includes a head having a front face with a top surface and an undersurface rearwardly sloping together to define a tapered back face. The sides of the head slope in convergence from the top surface to the undersurface. A pair of open-ended arcuate passageways are provided in the head substantially in parallel with a round opening at the front face and terminating in an oval exit at the back face. The radius of the arcuate passageways lies on the radius of the golfer's swing and a pointer is located on the top surface adjacent the front face to indicate alignment with sweet spot location on the front face. The undersurface includes a pair of ridges defining a central groove and opposite side grooves with terminations at the oval exits of the passageways.

Abstract: A golf club hosel comprising three segments is disclosed, the upper segment being circular in cross-section and adapted to receive a golf club shaft, a tapered middle segment having a circular cross-section diminishing in diameter from top to bottom, and an elliptical in cross-section lower segment adapted to join the hosel to the club head.