Method of bending a ball point pen tip
AssigneeThe Gillette Company
InventorRobert L. Brown
Life of this patent
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Abstract
A method of manufacturing a ball point member for use in a ball point pen wherein a plurality of circumferential grooves are formed on one side only of the outer surface of the tubular body of the point member near the point ball. The point member is bent about a center of bending displaced from the axis of the tubular body in a direction whereby the grooved surface is on the compression side of the bend and the non-grooved surface is on the tension side of the bend while maintaining a compressive force throughout the tubular member.
Claims16
A method of manufacturing a ball point member for use in a ball point pen which includes the steps of:
- providing a cylindrical point member comprising a tubular body member formed by a thin wall having a spherical ball retained in one end thereof and open at the opposite end for receiving writing fluid;
- forming at least one substantially V-shaped groove circumferentially on the outer surface of the thin wall covering less than the entire circumference of the wall and leaving a non-grooved surface over substantially the length of the tubular body member opposite the groove;
- and
- bending the tubular body member in a direction whereby the grooved surface is on the compression side of the bend and the non-grooved surface is on the tension side of the bend.
Dependencies are inferred from the claim text.