Thread cutting tool having cutting teeth with stepped...

Details Thread cutting tool having cutting teeth with stepped... Thread cutting tool having cutting teeth with stepped...

2005-07-19

2005-07-19

Howell, Daniel W. (Department: 3722)

Cutting by use of rotating axially moving tool

Tool or tool with support

With pitch-stabilizing ridge

C470S198000, C408S220000

Reexamination Certificate

active

06918718

ABSTRACT:
A thread cutting tool for cutting female threads includes a shaft and a cutting section composed of several groups of cutting teeth alternating with chip grooves. At least some of the teeth, preferably teeth disposed in a front region of the tool, have undercuts in their flanks which define radial steps, each step spaced circumferentially from a cutting edge of the respective tooth in order to form a space which facilitates the escape of cuttings.

REFERENCES:
patent: 150346 (1874-04-01), Morgan
patent: 700892 (1902-05-01), Blackburn
patent: 2024169 (1935-12-01), Koonz
patent: 5127776 (1992-07-01), Glimpel
patent: 5993120 (1999-11-01), Giessler
patent: 2610555 (1988-04-01), None
patent: 2 623 114 (1989-05-01), None
patent: 6-179121 (1994-06-01), None
patent: 6-344225 (1994-12-01), None
Automatic Machining, author unknown, pp. 46-48, Jul. 1957.

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