High-speed forming tap

Threaded – headed fastener – or washer making: process and apparat – Implement – e.g. – die – etc. – Tap

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C408S220000

Reexamination Certificate

active

07468001

ABSTRACT:
A high-speed forming tap (1) for cutting and forming a female screw by cutting edges (E) of a screw portion (2) fed in synchronous with the rotation of a machine tool. The high-speed forming tap is characterized in that chamfers (CF) are provided at a bevel lead (2a) of the screw part (2). The chamfers (CF) start from the cutting edge (E) and are provided along ridgelines (R) between a crest face (2e) and flanks, or a following flank (2c) and a leading flank (2d). This structure enables the shape of the edges of the tap leading portion to be stably maintained and high-speed, smooth female screw cutting with high accuracy, and provides a tap with long life.

REFERENCES:
patent: 1447700 (1923-03-01), Wells
patent: 2816302 (1957-12-01), Bauer
patent: 3336614 (1967-08-01), Benjamin
patent: 4462727 (1984-07-01), Marburger
patent: 5127776 (1992-07-01), Glimpel
patent: 5222847 (1993-06-01), Hiyama et al.
patent: 5318393 (1994-06-01), Yamada
patent: 5487626 (1996-01-01), Von Holst et al.
patent: 6035744 (2000-03-01), Maier
patent: 6918718 (2005-07-01), Schwarz
patent: 7147413 (2006-12-01), Henderer et al.
patent: 2006/0216124 (2006-09-01), Oknestam et al.
patent: 365219 (1932-01-01), None
patent: A-49-26874 (1974-03-01), None
patent: U-57-189735 (1982-05-01), None
patent: U-60-67821 (1985-05-01), None
patent: A-63-200916 (1988-08-01), None
patent: U-63-124426 (1988-08-01), None
patent: U-3005740 (1994-10-01), None
patent: A 11-221716 (1999-08-01), None
patent: WO 02/087813 (2002-11-01), None

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

High-speed forming tap does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with High-speed forming tap, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High-speed forming tap will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-4050204

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.