Static molds – Including means to apply force to remove or release product...
Patent
1977-05-26
1979-02-13
Briggs, William R.
Static molds
Including means to apply force to remove or release product...
249141, 425552, 425812, B29C 700, B29F 114
Patent
active
041391772
ABSTRACT:
Shaped synthetic-resin bodies are made in a separable mold by injecting a flowable mass of a synthetic-resin material into the mold cavity. To precool the mass and cause an initial setting at least of the surface thereof, a liquefied gas, i.e. a low-boiling liquid which is in a gaseous state at room temperature and atmospheric pressure, is introduced between the mass and the walls of the cavity. The coolant is discharged from the cavity through at least one controllable cross-section outlet to regulate the contact time between the coolant and the mass. The initially set precooled body is injected from the mold and is subjected to final cooling and temperature homogenization (tempering), e.g. in a liquid bath.
REFERENCES:
patent: 2920353 (1960-01-01), Strating et al.
patent: 3169272 (1965-02-01), Maxson
patent: 3329198 (1967-07-01), Manning et al.
patent: 3392423 (1968-07-01), Heider et al.
patent: 3667248 (1972-06-01), Carlson
patent: 3671159 (1972-06-01), Greenberg et al.
patent: 3704081 (1972-11-01), Immel
patent: 3871811 (1975-03-01), Barry et al.
patent: 3874830 (1975-04-01), Carter et al.
LandOfFree
Apparatus for the injection-molding and cooling of shaped synthe does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus for the injection-molding and cooling of shaped synthe, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for the injection-molding and cooling of shaped synthe will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-687730