Plastic and nonmetallic article shaping or treating: processes – Mechanical shaping or molding to form or reform shaped article – Shaping against forming surface
Reexamination Certificate
2005-09-06
2005-09-06
Colaianni, Michael P. (Department: 1732)
Plastic and nonmetallic article shaping or treating: processes
Mechanical shaping or molding to form or reform shaped article
Shaping against forming surface
C264S161000, C264S163000, C264S328800, C264S328110
Reexamination Certificate
active
06939500
ABSTRACT:
Method and apparatus for molding a sealing surface of revolution on a molded part in first and second partable mold halves that mate at a major parting line plane. First and second mold inserts each have a sub-insert trim wheel component shaped to mold form the sealing surface of revolution when closed at a minor parting line plane. The sub-inserts are rotatable between a position flush with the major parting line plane and a starting position angularly offset therefrom. The mold cavity is filled with liquid molding material that is allowed to harden to at least a self-sustaining solidification strength. The sub-inserts are then rotated to thereby move any minor parting line flash toward a position angularly offset from their starting position. This rotation causes any parting line flash that might otherwise remain on the sealing surface to be removed from attachment to, and/or smeared smooth along, such surface.
REFERENCES:
patent: 4123217 (1978-10-01), Fischer et al.
patent: 5069832 (1991-12-01), Okumura et al.
patent: 5928682 (1999-07-01), Janca et al.
patent: 6659750 (2003-12-01), Overmyer et al.
patent: 6735926 (2004-05-01), Louviere
Colaianni Michael P.
Fontaine Monica A.
Mould Bernard
Reising Ethington Barnes Kisselle P.C.
Waugaman William J.
LandOfFree
Method and apparatus for eliminating a parting line witness... 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 and apparatus for eliminating a parting line witness..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for eliminating a parting line witness... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3407555