Method of making a refillable polyester container

Details Method of making a refillable polyester container Method of making a refillable polyester container

1994-09-27

1997-02-04

Timm, Catherine

Plastic and nonmetallic article shaping or treating: processes

Direct application of fluid pressure differential to...

Including application of internal fluid pressure to hollow...

264537, B29C 4908

Patent

active

055994962

ABSTRACT:
Method of making a refillable polyester container having a low orientation base with improved resistance to caustic wash cracking. The method includes providing a preform with an upper base-forming thickened portion which resists axial elongation (thereby increasing the orientation of the body) and a lower base-forming tapered portion which decreases in thickness so as to gradually reduce the wall thickness of a central dome in the container base. The bottom of the preform base includes a central thickened region which is maintained in a recess during blowing to insure centering and prevent the formation of stress concentrations.

REFERENCES:
patent: 3137748 (1964-06-01), Makowski
patent: 3417892 (1968-12-01), Schweiger
patent: 3865531 (1975-02-01), Moore et al.
patent: 3881621 (1975-05-01), Adomaitis
patent: 3948404 (1976-04-01), Collins et al.
patent: 3955697 (1976-05-01), Valyi
patent: 4108324 (1978-08-01), Krishnakumar
patent: 4134510 (1979-01-01), Chang
patent: 4247012 (1981-01-01), Alberghini
patent: 4330579 (1982-05-01), Ota et al.
patent: 4334627 (1982-06-01), Krishnakumar et al.
patent: 4406854 (1983-09-01), Yoshino
patent: 4465199 (1984-08-01), Aoki
patent: 4502607 (1985-03-01), Szajna
patent: 4525401 (1985-06-01), Pocock
patent: 4598831 (1986-07-01), Nakamura et al.
patent: 4615667 (1986-10-01), Roy
patent: 4618515 (1986-10-01), Collette
patent: 4665682 (1987-05-01), Kerins
patent: 4725464 (1988-02-01), Collette
patent: 4755404 (1988-07-01), Collette
patent: 4780257 (1988-10-01), Beck
patent: 4850494 (1989-07-01), Howland
patent: 4867323 (1989-09-01), Powers
patent: 4880593 (1989-11-01), Strassheimer
patent: 4885197 (1989-12-01), Strassheimer
patent: 4889752 (1989-12-01), Beck
patent: 4892205 (1990-01-01), Powers et al.
patent: 4915992 (1990-04-01), Takakusaki et al.
patent: 4927679 (1990-05-01), Beck
patent: 4969563 (1990-11-01), Strassheimer
patent: 4978015 (1990-12-01), Walker
patent: 4981736 (1991-01-01), Feddersen et al.
patent: 5005716 (1991-04-01), Eberle
patent: 5066528 (1991-11-01), Krishnakumar et al.
"A Discussion Of Plastic Processing, 3 Blowing Molds," BASF AG, 1973 (in German with English translation).
Plester, G., "Refillable Plastic Bottles -- The Technical Challenge And The Practical Experience," 10th International Conference, High Performance Plastic Packaging, Organized By The Society Of Plastics Engineers International (European Section), Dusseldorf, Oct. 31-Nov. 1, 1989, pp 1, 2 (in English).
Vogelpohl, H., "Suitability of PET Bottles As One-Way And Returnable Containers For The Filling of CO.sub.2 -Containing Drinks," Getraenkatechnik, 1988, 4, (8), 140-146 (in German with English translation).
"Returnable Plastics Bottle: A Child With Three Fathers," Verpackungs Berater, 1986, 30, (12), 37, 38 (in German with English translation).
"Coca-Cola Shocks The Industry," Getrankeindustrie, Jan. 1987, 41 (1), pp. 17-24 (in German with English translation).

Affiliated with

Also associated with

Rating

Method of making a refillable polyester container 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 of making a refillable polyester container, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of making a refillable polyester container will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-675708