Metal tools and implements – making – Blank or process – Die
Patent
1993-05-19
1994-09-20
Crane, Daniel C.
Metal tools and implements, making
Blank or process
Die
B21K 520, B21D 3720
Patent
active
053478886
ABSTRACT:
A progressive bead forming metal die for forming beads in a metal gasket is constituted by a bead-forming die disposed between a hole punch die and an outer profile punch die. The bead-forming die comprises a pair of upper and lower inner bead boundary base blocks supported by upper and lower holders for pressing a desired bead shape and inner-bead flat sections, a stripper disposed so as to slide along the outer surface of the upper inner bead boundary base block, a die secured in contact with the outer surface of the inner bead boundary base block and disposed facing the stripper, a stopper disposed between the stripper and the upper holder to press-form an out-bead flat section between and by the stripper and the die when the upper and lower inner bead boundary base blocks are brought into press contact with each other, and an elastic member for urging the stripper toward the die.
REFERENCES:
patent: 798530 (1905-08-01), Rehfuss et al.
patent: 1701546 (1929-02-01), Shaw
patent: 2177027 (1939-10-01), Plumb
patent: 2413591 (1944-04-01), Sturdy
patent: 2434375 (1948-01-01), Van Saun
patent: 2879843 (1959-03-01), Comoglio
patent: 2989936 (1961-06-01), Farnsworth et al.
patent: 4112732 (1978-09-01), Okunishi et al.
patent: 4606213 (1986-08-01), Persson
Numaya Kuniaki
Yoshino Nobuo
LandOfFree
Method for forming a bead forming die 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 for forming a bead forming die, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for forming a bead forming die will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2428680