Plastic and nonmetallic article shaping or treating: processes – Forming articles by uniting randomly associated particles
Reexamination Certificate
2007-06-26
2007-06-26
Theisen, Mary Lynn (Department: 1732)
Plastic and nonmetallic article shaping or treating: processes
Forming articles by uniting randomly associated particles
C425S352000, C419S066000
Reexamination Certificate
active
11017013
ABSTRACT:
A device to compact parts out of powder material including a top die and a bottom die movable with respect to each other from an open position to a closed position, at least one punch associated with each of said dies for relative movement between the die and associated punch, said bottom die and bottom punch movable to positions defining a cavity substantially within said top die for receiving powder therein, said bottom punch and said top and bottom dies being relatively movable to draw powder down into a portion of said cavity adjacent the bottom die that is formed due to said relative movement, said top and bottom punches being movable toward each other to compact the powder and form the part, said top and bottom dies being separable to eject the part. Relative movement of the top and bottom die and bottom punch may take place during filling of the cavity with powder. Alternatively, relative movement may take place after the completion of filling the cavity adjacent the top die with sufficient powder to fill the part.
REFERENCES:
patent: 3020589 (1962-02-01), Maritano
patent: 3773446 (1973-11-01), Borrini
patent: 3891367 (1975-06-01), Signora
patent: 4008021 (1977-02-01), Fedrigo et al.
patent: 4047864 (1977-09-01), DeSantis
patent: 5326242 (1994-07-01), Katagiri et al.
patent: 5378416 (1995-01-01), Kishi et al.
patent: 5401153 (1995-03-01), Katagiri et al.
patent: 5478225 (1995-12-01), Takeuchi et al.
patent: 5498147 (1996-03-01), Katagiri et al.
patent: 5698149 (1997-12-01), Hinzmann et al.
patent: 6099772 (2000-08-01), Hinzmann et al.
patent: 6120728 (2000-09-01), Hinzmann et al.
patent: 6165400 (2000-12-01), Hinzmann
patent: 6318986 (2001-11-01), Hinzmann et al.
patent: 6423264 (2002-07-01), Gay
patent: 6789320 (2004-09-01), Mori et al.
patent: 2002/0192484 (2002-12-01), Kohara et al.
Hicklen Edwin Scott
Kuplen Sean
Sun Ryan
Xu Kai
Borg-Warner Inc.
Brown & Michaels PC
Dziegielewski Greg
Theisen Mary Lynn
LandOfFree
Split die and method for production of compacted powder... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Split die and method for production of compacted powder..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Split die and method for production of compacted powder... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3816803