초록 ▼

The invention is directed to a rubber sealed metal vacuum bottle comprising an inner shell and an outer shell; a U-shaped, circular rubber seal positioned between the throat portion of the inner shell and the upper end portion of the outer shell, said rubber seal having a U-shaped, circular metal re

The invention is directed to a rubber sealed metal vacuum bottle comprising an inner shell and an outer shell; a U-shaped, circular rubber seal positioned between the throat portion of the inner shell and the upper end portion of the outer shell, said rubber seal having a U-shaped, circular metal reinforcing plate fitting therein, which reinforcing plate has two or more evenly spaced holes therethrough; and a circular supporting member fixed vertically between two inclined portions of the bottoms of the inner and outer shells. The invention is also directed to stopper caps for a metal vacuum bottle.

대표청구항 ▼

In combination with a vacuum bottle which includes a filler having a neck portion defining a smooth inwardly tapered throat opening having threading at its outermost portion, a closure assembly for said opening comprising: a stopper cap having threads thereon to engage the threads of the neck portio

In combination with a vacuum bottle which includes a filler having a neck portion defining a smooth inwardly tapered throat opening having threading at its outermost portion, a closure assembly for said opening comprising: a stopper cap having threads thereon to engage the threads of the neck portion of the vacuum bottle; an O-ring retainer movably connected to the bottom of said stopper cap body; and a rubber O-ring positioned on the lateral surface of the O-ring retainer, such that when the stopper cap is threaded into the vacuum bottle, the O-ring engages the tapered throat opening and thus spreads to seal the throat opening of the vacuum bottle as the stopper cap is threaded in.