US PATENT SUBCLASS 72 / 96-- .~.~.~ Using external rotating tool and internal core

US PATENT SUBCLASS 72 / 96
.~.~.~ Using external rotating tool and internal core

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999 Terms of Use

72 /	HD	METAL DEFORMING

67	DF	BY USE OF TOOL ACTING DURING RELATIVE ROTATION BETWEEN TOOL AND WORK ABOUT INTERNAL CENTER (E.G., GYRATING OR ROTATING TOOL) {10}
80	DF	.~ During rotation of work {12}
95	DF	.~.~ And longitudinal movement of work {4}
96		.~.~.~ Using external rotating tool and internal core {1}
97	DF	.~.~.~.~> Including work-piercing or work-expanding plug

DEFINITION

Classification: 72/96

Using external rotating tool and internal core:

(under subclass 95) Subject matter including a first tool adapted to engage the inside of hollow material being deformed while substantially filling a cross-section of the cavity within such material, and also including at least one other tool adapted to turn about its axis and engage the outside of the material.

(1) Note. The term "hollow material" used in the definition of this subclass is intended to include work that is made hollow during the deforming operation.