Tom W Arutunian

20050049058, Mar 3, 2005

Sep 2, 2003

10/654221

Tom Arutunian - Huntington Beach CA, US

A63B043/00

473130000

A bowling ball finger insert featuring a pliable plastic cylinder and three vertically disposed ridges whose respective faces define the interface between the insert and a finger hole of a bowling ball.

54982090, Mar 12, 1996

May 19, 1995

8/444441

Tom Arutunian - Huntington Beach CA

A63B 4302

473128

A simple and inexpensive bowling ball finger hole insert provides a firm finger grip that automatically adjusts to accommodate changes in a bowler's finger diameter. The insert has a substantially cylindrical shape and is manufactured from an elastomer such as polyurethane. The outer dimensions of the insert are selected to match a standard hole in a bowling ball. The insert comprises two coaxial hollow cylinders of different diameters. The outer cylinder fits into the ball's finger hole and contacts the ball, while the smaller inner cylinder, which is sized to accept the bowler's finger, is suspended within the outer cylinder with an air space between the two cylinders. When the inner cylinder deforms to accept a finger with an enlarged diameter, it expands into the air space. The inner cylinder can be suspended within the air space by being attached to the outer cylinder either laterally along one side or distally at the end of the inner cylinder.