Abstract: A golf ball comprising; a core and a multi-layered cover having an innermost layer enclosing the core, at least one intermediate layer enclosing the innermost layer, and an outermost layer enclosing the at least one intermediate layer. The innermost layer is composed of an ionomer resin, polyester elastomer, polyamide elastomer or polyurethane elastomer. The at least one intermediate layer is composed of an ionomer resin. The outermost layer is composed of an ionomer resin, ethylene-vinyl acetate copolymer, polyurethane or polyethylene or a mixture thereof, and the at least one intermediate layer includes at least one layer which is harder than the innermost layer and the outermost layer.

Abstract: A golf swing trainer consists of a support base for supporting a vertical shaft, the shaft having a flexible horizontal shaft extending from it and having at its other end a golf tee upon which a golf ball can rest. The horizontal shaft is capable of moving up and down in a vertical direction on the vertical shaft and remains relatively fixed to the vertical shaft by a suitable means. A player would practice using the golf swing trainer by hitting golf balls placed on the tee, initially when the horizontal shaft is at a high position relative to the support shaft, and when the player become adept at hitting the ball at the high position, the horizontal shaft would gradually be lowered, so that the player would be hitting the ball at lower and lower positions. This promotes the proper swing plane for the golf swing.

Abstract: A golf putter is formed with a hollow box open towards its striking face which is tautly covered with a layer or two of leather. The cavity in the box behind the leather is filled with a displaceable material such as sand or liquid. The leather indents on striking a golf ball to provide more "feel" and accuracy.

Abstract: A golf trainer characterized by a ground support (4) having a ring (6) on which is positioned a ring (3), with the inclusion of bearings formed as slide runners (12) between the two rings (3) (6) to permit the selective turning of the upper ring (3) with respect to the lower (6) about a substantially vertical axis, the upper ring (3) being attached by means of pivots (7), to a base or platform (1) which may thus tilt, from a position parallel to the ground to an inclined position, so that the base or platform (1) may turn and moreover may be inclined with respect to the ground.

Abstract: A croquet ball, comprising:a one-piece substantially spherical body which is externally knurled and entirely composed of cold-molded polyurethane including a widely distributed filler which provides said body with a weight of substantially 16 ounces, an external diameter of substantially 3.625 inches and a bounce, when dropped from a height of 60 inches onto a steel plate one inch thick and set rigidly in concrete, when the ambient temperature is 20.degree. C., of:about 43 inches, when the ball is at 20.degree. C.,about 43 inches when the ball is at 0.degree. C., andabout 35 inches when the ball is a 100.degree. C.