Static molds – Core – Including means to expand or contract core
Patent
1978-10-27
1980-06-24
Flint, Jr., J. Howard
Static molds
Core
Including means to expand or contract core
249184, B29F 1002, B29D 2302, B29F 108, B29C 106
Patent
active
042091616
ABSTRACT:
A collapsible mold core comprises an inner core member, which remains out of contact with the inside peripheral surface of the molding, first and second pairs of mutually opposite, outer core members, which engage the molding and determine the shape thereof, and guides which converge toward the axis of the core and serve to guide the pairs of outer core members parallel to guide planes which are offset 90.degree. from each other and extend through the axis of the core. The four outer core members tightly adjoin each other, and the outer core members of the first pair have lateral wedge faces which extend parallel to the guides and at right angles to the guide plane of the outer core members of the second pair. The latter have inclined surfaces which are disposed on the side which faces the axis and are parallel to the wedge faces of the other outer core members, and the outer core members of both pairs are adapted to be displaced from a molding position in that longitudinal direction of the guides in which the latter converge. The displacement of the outer core members of the first pair is smaller than the displacement of the outer core members of the second pair.
REFERENCES:
patent: 2676372 (1954-04-01), Venner et al.
patent: 3247548 (1966-04-01), Fields et al.
patent: 3339242 (1967-09-01), Lamb
patent: 3482815 (1969-12-01), Naturale
patent: 3677684 (1972-07-01), Platz
patent: 3853299 (1974-12-01), Kessel
patent: 3856256 (1974-12-01), Celesti
patent: 3966385 (1976-06-01), Spears
patent: 4019711 (1977-04-01), Altenhof et al.
Flint, Jr. J. Howard
Wien-Fischamender Metallwarenfabrik Josef Suschny & Sohne
LandOfFree
Collapsible core for casting molds does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Collapsible core for casting molds, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Collapsible core for casting molds will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1478156