Bowling pin

Claim 1

A BOWLING PIN ADAPTED TO PROVIDE A SOUND SUBSTANTIALLY SIMILAR TO A CONVENTIONAL MAPLE WOD PIN ON IMPACT WITH A BOWLING BALL OR ANOTHER PIN COMPRISING: A HOLLOW METALLIC CORE, SAID CORE HAVING THE ELONGATED SHAPE OF A BOWLING PIN WITH A NECK-HEAD PORTION, A BELLY PORTION AND A BASE PORTION, SAID CORE FURTHER HAVING SOUND DETERMINING MODES OF VIBRATION, ONE BEING A BELL MODE CAUSED PRINCIPALLY BY VIBRATION OF THE BELLY OF SAID PIN AND THE OTHER BEING A FLEXURAL MODE CAUSED PRINCIPALLY BY THE NECK-HEAD AND BASE MOVING IN A COMMON PHASE AND THE BELLY MOVING IN OPPOSITE PHASE, SAID BELL MODE BEING UNDESIREBLE IN THAT AUDIBLY IT SOUNDS HARSH AND UNWOODEN WHILE SAID FLEXURAL MODE IS DESIRABLE IN THAT IT SOUNDS NOT UNLIKE A MAPLE WOOD PIN WHICH HAS A SIMILAR FLEXURAL MODE; A MASS OF SOUND DAMPENING FOAM PLASTIC MATERIAL, MEANS LOCATING SAID MASS IN THE HOLLOW CAVITY OF SAID CORE TO ELIMINATE A CONSIDERABLE PART OF THE UNDESIRABLE VIBRATION OF SAID BELL MODE WITHOUT ADVERSELY AFFECTING THE DESIRABLE VIBRATION OF SAID VLEXURAL MODE; AND A RESILIENT PLASTIC COATING ENCASING SAID CORE, SAID COATING HAVING A SUFFICIENT THICKNESS TO, IN COOPERATION WITH SAID FOAM, SUBSTANTIALLY ELIMINATE THE REMAINING VIBRATIONS OF SAID BELL MODE WHILE EMPHASIZING THE WOODEN SOUNDING VIBRATION OF SAID FLEXURAL MODE.