Method of producing game balls using heat activated glue
AssigneeWorth, Inc.
InventorsHarry F. McClure, Dan S. Pitsenberger, James C. Larry
Life of this patent
Estimating the term…
Abstract
An improved method for the manufacture of baseballs including the steps of coating the core of the ball with a heat activated water based latex based glue, drying the glue, positioning a multi-part cover about the surface of the ball, stitching together the adjoining edges of the multi-part cover, heating the ball to activate the heat activated glue in order to securely glue the cover to the core after the stitching of the cover to join the seams of the cover about the core.
Claims19
A method of manufacturing a molded core game ball having a cover including the steps of:
- a. forming a molded core having an exterior surface;
- b. coating the exterior surface of said molded core with a heat activated adhesive;
- c. treating said heat activated adhesive so that it is not tacky thereby allowing a cover placed on said core to be shifted freely on said core;
- d. placing a multi-piece cover about said core, the pieces of said multi-piece cover being shaped to have mating edges when placed about said core;
- e. stitching together the mating edge of said pieces of said cover;
- f. heating the ball at a sufficient temperature and for a sufficient time to activate the heat activated adhesive whereby said heat activated adhesive will bond said cover to said core.
A method of manufacturing a game ball including the steps of:
- a. forming a molded core having a spherical outer surface;
- b. forming a cover in two or more sections, the sections designed to mate with interlocking edges to form a cover for the entire spherical outer surface of the core;
- c. applying a heat activated glue to the spherical outer surface of the core and treating said heat activated adhesive so that it is dry to the touch;
- d. placing the sections of the cover about the core to cover the entire outer spherical outer surface of the core;
- e. stitching the interlocking edges of the sections of the cover together;
- and
- f. heating the game ball as assembled to activate the heat activated glue whereby said cover will be bonded to the outer spherical perimeter of the core.
A method of manufacturing a game ball including the steps of:
- a. forming a molded core having an exterior surface and a cover to mate with said exterior surface;
- b. coating one surface of said cover with a heat activated adhesive;
- c. drying said heat activated adhesive until it is not tacky, thereby allowing said cover to freely shift on said core when placed about said core;
- d. placing said cover about said core;
- e. connecting the edges of said cover together;
- and
- f. heating the ball at a sufficient temperature and for a sufficient time to activate the heat activated adhesive whereby said heat activated adhesive will bond said cover to said core.
A method of manufacturing a molded core game ball having a cover including the steps of:
- a. forming a molded core having an exterior surface;
- b. coating the exterior surface of said molded core with liquid heat activated adhesive by rollers passing through a vat containing the adhesive in liquid form and transferring the adhesive from the rollers passing through the vat to transfer rollers which apply the adhesive directly to the core and propel the cores along the length of the transfer rollers through a drying stage and into a collection container;
- c. drying said heat activated adhesive after it is applied to said core and prior to placing a cover about said core;
- d. placing a cover about said core;
- and
- e. heating the ball at a sufficient temperature and for a sufficient time to activate the heat activated adhesive whereby said heat activated adhesive will bond said cover to said core.
Dependencies are inferred from the claim text.