Plastic and nonmetallic article shaping or treating: processes – Mechanical shaping or molding to form or reform shaped article – To produce composite – plural part or multilayered article
Patent
1979-02-27
1980-12-09
Anderson, Philip
Plastic and nonmetallic article shaping or treating: processes
Mechanical shaping or molding to form or reform shaped article
To produce composite, plural part or multilayered article
85 37, 85 77, 85 79, 264271, 2643281, 425542, 425567, 425DIG227, B29D 300, F16B 1910
Patent
active
042384460
ABSTRACT:
In a method for the injection molding of a plastic blind rivet of the type essentially consisting of a shank and a rivet body such that an upward slide of the shank relative to the rivet body causes the leading end of the rivet body to expand outwardly and the outward expansion of the rivet body enables the rivet to be fastened to a panel, the improvement which comprises forming a ring gate in the lower end of the cavity of a second die used for molding a rivet body around a shank molded in advance in a first die, whereby the molten plastic material for the rivet body is allowed to flow through the ring gate into the rivet-body cavity of the second die with high uniformity, whereby the rivet body is produced free from a weld line and consequently from the possibility of sustaining cracks under the force exerted thereon when the shank is slid upwardly therein.
REFERENCES:
patent: 3244801 (1966-04-01), Dozier
patent: 3272060 (1966-09-01), Morin
patent: 3385158 (1968-05-01), Morin
patent: 3501790 (1970-03-01), Wickers
patent: 3651734 (1972-03-01), McSherry
patent: 3933967 (1976-01-01), Taylor
patent: 3938657 (1976-02-01), David
patent: 4002099 (1977-01-01), Bradley et al.
patent: 4083289 (1978-04-01), Erickson
Anderson Philip
Buckman T. W.
Halvorsen J. R.
Nifco Inc.
LandOfFree
Method for molding blind rivet 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 molding blind rivet, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for molding blind rivet will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2280183