Mold die

Details Mold die Mold die

2007-12-18

2007-12-18

Heitbrink, Tim (Department: 1722)

Plastic article or earthenware shaping or treating: apparatus

Female mold and charger to supply fluent stock under...

Mold having movable core or movable pin

C425SDIG058

Reexamination Certificate

active

11058205

ABSTRACT:
An injection-molding mold die includes a cylinder and a diameter-enlarging member. The cylinder includes a hollow, an opening, and an external peripheral surface, and has an undercut-forming section formed on the external peripheral surface thereof, which forms a shape incapable of being drafted from the mold die in the direction of opening the same. The diameter-enlarging member enters the hollow through the opening so as to enlarge the external diameter of the cylinder and can relatively advance to or retreat from the hollow. The diameter-enlarging member lies in the hollow when the mold die is clamped and exits the hollow when the mold die is opened. The cylinder is made from a metal having a longitudinal elastic modulus greater than the value of a predetermined pressure, and whose external diameter enlarged by the insertion of the diameter-enlarging member is reduced when the diameter-enlarging member exits the hollow.

REFERENCES:
patent: 4919608 (1990-04-01), Catalanotti et al.
patent: 63-203916 (1988-08-01), None
patent: 5-47534 (1993-06-01), None
patent: 5-76721 (1993-10-01), None
patent: 5-312213 (1993-11-01), None
patent: 7-110028 (1995-04-01), None
patent: 7-190048 (1995-07-01), None
patent: 9-57760 (1997-03-01), None
patent: 10-331841 (1998-12-01), None
patent: 11-311242 (1999-11-01), None
patent: 3056024 (2000-04-01), None
patent: 2000-240640 (2000-09-01), None
patent: 2001-65570 (2001-03-01), None

Affiliated with

Also associated with

Rating

Mold die does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Mold die, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Mold die will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3866787