B - Operations – Transporting – 29 – F
Patent
B - Operations, Transporting
29
F
18/682
B29F 1/14 (1980.01)
Patent
CA 1170807
9D-DW-14206-Jenkins METHOD AND APPARATUS FOR MOLDING STRAIGHT RIBBED ARTICLES ABSTRACT OF THE DISCLOSURE A method of molding a hollow, plastic article having ribs ex- tending from its walls comprising the steps of positioning the mold cavity forming members in a closed position to define a mold cavity corresponding to the configuration of the article; injecting molten thermoplastic material into the cavity; allowing the material to cool for a predetermined period of time to permit partial cooling and setting of the plastic; injecting additional plastic material into the rib forming portion of the mold cavity at a plurality of injection points spaced along the rib portion; pausing for a second predetermined time to permit complete setting of the plastic in the mold; displacing the cavity defining members from their closed position and exerting an ejecting pressure on the rib portion at the plurality of injection points along its length to aid in ejecting the article from the mold.
394586
Company General Electric
Eckersley Raymond A.
LandOfFree
Method for molding straight ribbed articles 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 straight ribbed articles, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for molding straight ribbed articles will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1309121