Bottles and jars – Closures – Self-sealing – piercable-type closure
Patent
1996-05-09
1998-12-29
Cronin, Stephen K.
Bottles and jars
Closures
Self-sealing, piercable-type closure
215274, 215275, 215358, B65D 4120
Patent
active
058530940
ABSTRACT:
To provide a rubber stopper enhancing a tightening force applied on a piercing needle and a closing force of a hole caused by piercing the needle, a stopper assembly for a container for aqueous infusion attached to an opening of a main body of a container for aqueous infusion made of synthetic resin in which a rubber stopper is in a tight contact state with a rubber stopper outer supporter made of synthetic resin by receiving a compressive stress therefrom at all the side face of a barrel portion of the rubber stopper, a diameter of at least one of a top face and a bottom face of the rubber stopper is contracted by 1 through 10% and the top face or the bottom face is expanded, is proposed.
REFERENCES:
patent: 4226334 (1980-10-01), Weiler et al.
patent: 4254884 (1981-03-01), Maruyama
patent: 4892222 (1990-01-01), Schmidt et al.
patent: 4967919 (1990-11-01), Earhart
patent: 5088612 (1992-02-01), Storar et al.
patent: 5303835 (1994-04-01), Haber et al.
patent: 5527580 (1996-06-01), Ikeda et al.
Patent Abstracts of Japan, vol. 16, No. 21, Jan. 20, 1992; JP-A-90 033250, Oct. 22, 1991.
Norimoto Toshio
Otake Isao
Shirakawa Katushi
Tanaka Nobuyuki
Cronin Stephen K.
Newhouse Nathan
Showa Denko K. K.
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