Stock material or miscellaneous articles – Hollow or container type article – Polymer or resin containing
Patent
1996-04-03
1999-02-23
Teskin, Fred
Stock material or miscellaneous articles
Hollow or container type article
Polymer or resin containing
428 357, 4285428, 215371, 264523, 264526, 264537, 264294, 26433111, B29D 2200, B29C 4902
Patent
active
058741410
ABSTRACT:
A plastic container is formed by injection and blow molding wherein the injection molded body has an annular shoulder, an upper neck and a bottom wall with a central flat portion of substantially the same thickness as the wall of said body. An enlarged annular corner portion connects the bottom wall to the body and extends downwardly. The annular corner is sufficiently thick so as to form a substantially solid rim after bi-axial stretching during blow molding. The plastic parison for forming the container includes a body with an annular shoulder and an upper neck and also with the bottom wall having a central flat portion of substantially the same thickness as the body. The enlarged annular corner portion of the parison also connects to the body and extends downwardly to form a substantially solid rim. The thickness of the annular corner is sufficient to keep the annular corner from having a cavity formed in it during bi-axial stretching. In the method the molded body, annular shoulder, upper neck and the bottom wall are maintained with their relative thicknesses. The annular corner portion is sufficiently enlarged to form a substantially solid rim during stretching. The method is carried out so that the container exhibits the favorable characteristics of injection and blow molding. The blow molding is characterized by bi-axial stretching of the body and uni-axial stretching of the bottom wall. Heat is applied to the mold during blow molding and air is cycled in and out of the container for curing.
REFERENCES:
patent: 2805787 (1957-09-01), Sherman
patent: 3091000 (1963-05-01), Makowski
patent: 3113831 (1963-12-01), Coale
patent: 3450254 (1969-06-01), Miles
patent: 3816578 (1974-06-01), Fuller
patent: 3851030 (1974-11-01), Valyi
patent: 3893882 (1975-07-01), Repenning
patent: 3898310 (1975-08-01), Schiemann
patent: 4164298 (1979-08-01), Nishikawa et al.
patent: 4179488 (1979-12-01), Nishikawa et al.
patent: 4293520 (1981-10-01), Akutsu
patent: 4298567 (1981-11-01), Aoki
patent: 4439393 (1984-03-01), Saito et al.
patent: 4588620 (1986-05-01), Marcinek
patent: 4589563 (1986-05-01), Born
patent: 4590021 (1986-05-01), Ota el al.
patent: 4952133 (1990-08-01), Hasegawa et al.
patent: 5000904 (1991-03-01), Schiemann
patent: 5043130 (1991-08-01), Fujio
patent: 5049349 (1991-09-01), McCullough et al.
patent: 5116565 (1992-05-01), Yoshino
patent: 5248533 (1993-09-01), Sugiura et al.
Inoac Packaging Group Inc.
Teskin Fred
LandOfFree
Injection/blow molded plastic container and method does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Injection/blow molded plastic container and method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Injection/blow molded plastic container and method will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-304720