13 results about "Golf club" patented technology

The present invention is directed to a golf club head with an improved striding surface. The grooves are machined into the strike surface with tight tolerances. The grooves have sharp edges, radiused ends, and a draft angle between about 2° and 12°. The striking face is machined such that it has a uniform texture with a roughness of more than 40 Ra. The grooves may contain a plurality of portions, including a radiused or angled portion, a portion having substantially parallel walls, a portion having a v-shape, and a curved portion.

Points obtained by plotting flexural rigidity EI measured at ten sites on a shaft are defined as from T (1) to T (10) in this order from the head side, and the formula representing a line K that passes the T (1) and the T (10) is defined as [Y=aX+b1]. The values at the Y-intercepts on the lines that are parallel to the line K and that pass the points of from T (2) to T (9), respectively, are defined as from b2 to b9, respectively, and the minimum value among the values at the Y-intercepts b2 to b9 is defined as bmin. Slope “a” of the line K is 0.04 or greater and 0.06 or less; every one of the b3, b4, b5, b6, b7 and b8 is smaller than b1; and the bmin is any one of b4 to b7. The value (b1−bmin) is 30 (N·m²) or greater and 40 (N·m²) or less, and the value (b9−b1) is 4 (N·m²) or greater and 15 (N·m²) or less. This shaft either has a high-strength straight layer and a hoop layer, or has a textile layer.

A stainless steel strip article is disclosed. The article is formed from a corrosion resistant alloy having the following composition in weight percent, about:

The balance is iron and usual impurities. The elongated thin strip article provides a room temperature tensile strength of at least about 280 ksi in the solution treated and age hardened condition. A method of making the strip article and a method of using it to make a golf club are also disclosed.

Golf bag divider accessory and method of manufacturing same. One exemplary embodiment of the golf bag divider accessory comprises a shell mountable on an upper rim portion of a conventional golf bag. The shell defines a plurality of spaced-apart openings therethrough for receiving respective ones of a plurality of golf clubs. The golf clubs are maintained in a spaced-apart relationship while the golf clubs are received in the respective ones of the plurality of openings. This arrangement of the golf clubs provided by the shell prevents the golf clubs from impacting each other and becoming damaged. This arrangement of the golf clubs also minimizes the likelihood that the golf club shafts will become entangled while in the golf bag.

The invention relates to a paint vehicle, particularly to fingerprint preventing paint used on the head of a golf club and other surfaces for fingerprint prevention and a processing technology for preparing the fingerprint preventing paint. The fingerprint preventing paint mainly comprises epoxy resin, phenolic resin, a silane coupling agent, a colorant and a light stabilizer; the invention has the following benefits: the invention aims to provide the fingerprint preventing paint used on the surface of the head of the golf club for fingerprint prevention and the processing technology of the fingerprint preventing paint, the fingerprinting preventing resin formed by mixing the epoxy resin with the phenolic resin is used, and various light stabilizers suitable for the characteristics of the fingerprinting preventing resin are added on the fingerprinting preventing resin, so that the fingerprint preventing paint which has excellent fingerprint preventing characteristic, high wear resistance, high corrosion resistance and various excellent tolerances is produced, and when the fingerprint preventing paint is sprayed on the head of the golf club, the head of the golf club is deeper in color and luster, reflective resisting, rust-proof and more attractive.

The present invention is directed to a golf club head with an improved striking surface. The grooves are machined into the strike surface with tight tolerances. The grooves may contain a plurality of portions including a first portion that interfaces the striking surface with a variety of configurations.