Abstract: A baseball or softball comprising a cover having an outer surface that is formed of a first material. A second material that is easier to grip than the first material is affixed to the cover in the same location as the seam on a conventional baseball or softball. The ball's outer surface is molded and stitchless, meaning that the outer covering is not made by stitching panels together. While the ball may be stitchless, it may have simulated, molded stitches. The second material, when positioned on a planar surface, comprises a continuous strip having two generally semicircular ends each integral with a pair of opposed concave sides (e.g. a FIG. 8 configuration).

Abstract: A game ball with a cover having an outer surface that is formed of a first material. A second material, which is easier to grip than the first material, is affixed to the cover and positioned to resemble the seam of a conventional game ball. Preferably, the cover is formed from at least two panels that are coupled together along a seam. An outer surface of each panel is formed from the first material, and the second material is affixed to each panel adjacent to the seam. The invention also includes a baseball or softball with a cover having an outer surface formed of a first material, and a second material that is affixed to the outer surface in the same location as the seam on a conventional baseball or softball. The second material enhances a player's ability to grip the ball.

Abstract: A readily adjustable oxygen sensor utilizing a wooden plug as the oxygen-limiting porous diffusion barrier.