Tools for producing threads with varying pitch

Details Tools for producing threads with varying pitch Tools for producing threads with varying pitch

1994-01-31

1999-07-27

Hail, III, Joseph J.

Threaded, headed fastener, or washer making: process and apparat

Implement, e.g., die, etc.

Tap

470 96, B21J 1302

Patent

active

059280840

ABSTRACT:
Apparatus for forming threads of varying pitch on a work piece, by first producing a partial thread and groove whose pitch does not vary in accordance with a pattern of pitch variation desired for the final product, and then reshaping the partial thread and groove to a final form whose pitch does vary in accordance with the desired pattern. The two steps may be performed by a single tool having a series of thread cutting projections which form the partial thread, and having one or two additional projections which then reshape the partial thread to its final form.

REFERENCES:
patent: 1210508 (1917-01-01), Marye
patent: 2787798 (1957-04-01), Rosan
patent: 3021538 (1962-02-01), Linley, Jr.
patent: 4389145 (1983-06-01), Capuano
patent: 4396321 (1983-08-01), Holmes
patent: 4956888 (1990-09-01), Green
patent: 5086532 (1992-02-01), Green
patent: 5112168 (1992-05-01), Glimpel
patent: 5250007 (1993-10-01), Green
patent: 5316520 (1994-05-01), Green
patent: 5318393 (1994-06-01), Yamada
"Tool Engineers Handbook--2nd Edition" by ASTME Publications Committee published 1959, pp. 46-1 to 46-41.

Affiliated with

Also associated with

Rating

Tools for producing threads with varying pitch does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Tools for producing threads with varying pitch, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Tools for producing threads with varying pitch will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-872073