Method of producing a baseball bat
OwnerYukio Tanikawainventor
Life of this patent
Estimating the term…
Abstract
A method of producing a baseball bat in which the barrel or hitting portion of the bat is molded from synthetic resin and is affixed to a wooden grip or handle portion. An apertured metal tube is fitted over the barrel portion and synthetic resins are foamed through the apertures to bind the metal tube to the barrel portion. The synthetic resin is further smoothed over the entire metal tube and barrel portion. Then, a winding of glass fibers or a stocking of knitted glass fibers may be wound or fitted over the metal tube and barrel portion and painted with a synthetic resin paint which is allowed to permeate the fibers. The synthetic resin may be urethane foam, and the metal duralumin, and the windings or knitted stocking may have a textured surface which will enhance the ability of the bat to prevent foul balls.
Claims5
A method of producing a baseball bat comprising the steps of:
- molding a main bat member having a barrel portion for hitting a baseball and a grip portion integral with said barrel portion from foamable synthetic resin around a wooden core longitudinally through at least said grip portion;
- surrounding and fitting to said barrel portion an apertured metal tube;
- foaming synthetic resin of the same type as comprises said main bat member through the apertures in said apertured metal tube and smoothing said synthetic resin over said metal tube and said barrel portion;
- wrapping said synthetic resin covered metal tube and barrel portion with strings of chemical fibers;
- and
- spreading a coating of synthetic resin paint over said wrapping of chemical fiber strings and allowing said paint to permeate therethrough.
Dependencies are inferred from the claim text.