Metal working – Method of mechanical manufacture – Combined manufacture including applying or shaping of fluent...
Patent
1995-06-05
1997-07-08
Arbes, Carl J.
Metal working
Method of mechanical manufacture
Combined manufacture including applying or shaping of fluent...
164167, 249 67, 249 68, B23P 900
Patent
active
056448333
ABSTRACT:
An ejector is coated with a thin, hard, low friction, lubricous coating for use in a mold to eject molded articles from the mold without the use of liquid lubricants. The preferred ejector has a thin, low friction, coefficient coating with a thickness on the order of 0.00004 inch to 0.0001 inch. This coating provides long lasting, dry lubrication for low friction reciprocation of the ejector within a bore in the mold. The thin lubricous coating allows the ejector to be inventoried and sold in nominal sizes and cut down to the desired size by the mold builder to suit a specific application, and the cut ends are then deburred by the mold builder and finish ground to size, with the lubricous coating remaining intact at the cut end of the ejector. The coating is so thin that the nominal size of the ejector is essentially unchanged. The very thin coating does not chip or flake at the cut end, as would result in cavities into which the plastic could flow and form flashing on the plastic part being molded.
REFERENCES:
patent: 2217661 (1940-10-01), Anderson
patent: 2485283 (1949-10-01), Guelph
patent: 2487925 (1949-11-01), Gronemeyer
patent: 2492483 (1949-12-01), Keene
patent: 2808805 (1957-10-01), Tesmer
patent: 2834989 (1958-05-01), Kusnery
patent: 2837796 (1958-06-01), Aliberti
patent: 3112226 (1963-11-01), St. Jean
patent: 3137905 (1964-06-01), Steinman et al.
patent: 3632411 (1972-01-01), Stark
patent: 3900183 (1975-08-01), Wallace
patent: 4052033 (1977-10-01), Taylor
patent: 4068989 (1978-01-01), Cantarutti
patent: 4156634 (1979-05-01), Iosso
patent: 4225109 (1980-09-01), Yotsutsuji et al.
patent: 4291644 (1981-09-01), Kawai et al.
patent: 4889311 (1989-12-01), Anglin
patent: 5096352 (1992-03-01), Lemelson
patent: 5288061 (1994-02-01), Pieroni
patent: 5386659 (1995-02-01), Vaid et al.
patent: 5433263 (1995-07-01), Ohnishi et al.
Arbes Carl J.
D & L Incorporated
LandOfFree
Method of making dry, lubricated ejector pins 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 making dry, lubricated ejector pins, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of making dry, lubricated ejector pins will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2403366