Method of cold forming a self-attaching female fastener element

Details Method of cold forming a self-attaching female fastener element Method of cold forming a self-attaching female fastener element

2006-09-26

2006-09-26

Tolan, Ed (Department: 3725)

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

Process

Making internally threaded fastener, e.g., nut

C470S019000, C470S021000

Reexamination Certificate

active

07112142

ABSTRACT:
A method of cold forming a self-attaching female fastener (20) which includes deforming a fastener blank (120) having an annular pilot, (122) an annular flange (128) surrounding the pilot and a groove (132) in the flange having cylindrical walls and annular protrusions (152, 154) on the flange and pilot, then deforming the protrusions toward each other to form an annular re-entrant groove (32) having relatively inclined arcuate walls.

REFERENCES:
patent: 1112525 (1914-10-01), Darling
patent: 1919552 (1933-07-01), Hasselquist
patent: 2539899 (1951-01-01), Delaney
patent: 3213914 (1965-10-01), Baumle et al.
patent: 3253631 (1966-05-01), Reusser
patent: 3282315 (1966-11-01), Zahodiakin
patent: 3469613 (1969-09-01), Steward
patent: 3648747 (1972-03-01), Steward
patent: 3736969 (1973-06-01), Warn et al.
patent: 3793658 (1974-02-01), Ladouceur
patent: 3810291 (1974-05-01), Ladouceur
patent: 3878599 (1975-04-01), Ladouceur et al.
patent: 3910331 (1975-10-01), Randall
patent: 4389766 (1983-06-01), Capuano
patent: 4432681 (1984-02-01), Capuano
patent: 4470736 (1984-09-01), Tasseron
patent: 4543023 (1985-09-01), Capuano
patent: 4627776 (1986-12-01), Pamer et al.
patent: 4637766 (1987-01-01), Milliser
patent: 4708556 (1987-11-01), Pamer et al.
patent: 4893976 (1990-01-01), Milliser et al.
patent: 5251370 (1993-10-01), Muller et al.
patent: 5302066 (1994-04-01), Bieschke et al.
patent: 5335411 (1994-08-01), Muller et al.
patent: 5340251 (1994-08-01), Takahashi et al.
patent: 5423645 (1995-06-01), Muller et al.
patent: 5509766 (1996-04-01), Leuschner
patent: 5531552 (1996-07-01), Takahashi et al.
patent: 5549430 (1996-08-01), Takahashi et al.
patent: 5613815 (1997-03-01), Muller
patent: 5782594 (1998-07-01), Muller
patent: 5882159 (1999-03-01), Muller
patent: 6004087 (1999-12-01), Muller
patent: 6081994 (2000-07-01), Muller
patent: 6125524 (2000-10-01), Mueller
patent: 6220804 (2001-04-01), Pamer et al.
patent: 6257814 (2001-07-01), Muller
patent: 6276040 (2001-08-01), Muller
patent: D448659 (2001-10-01), Pamer et al.
patent: 6318940 (2001-11-01), Mitts
patent: D457054 (2002-05-01), Pamer et al.
patent: 6409444 (2002-06-01), Pamer et al.
patent: 6543979 (2003-04-01), Iwatsuki
patent: 2001/0010789 (2001-08-01), Pamer et al.
patent: 2002/0159858 (2002-10-01), Ikami et al.
patent: 2002/0172573 (2002-11-01), Pamer et al.
patent: 2002/0182032 (2002-12-01), Anderson et al.
patent: 2003/0039530 (2003-02-01), Ross et al.
patent: 0 561 715 (1993-03-01), None
patent: 0 864 766 (1998-09-01), None
PCT/US02/40279 International Search Report.

Affiliated with

Also associated with

Rating

Method of cold forming a self-attaching female fastener element does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of cold forming a self-attaching female fastener element, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of cold forming a self-attaching female fastener element will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3570956