초록 ▼

A bottle closure device having a stem member with an enlarged top portion, a collar resiliently biased away from the top portion, a retainer member on the end of the stem, and an O-ring between the retainer member and the collar. When the end of the stem is placed within the mouth of a bottle, the b

A bottle closure device having a stem member with an enlarged top portion, a collar resiliently biased away from the top portion, a retainer member on the end of the stem, and an O-ring between the retainer member and the collar. When the end of the stem is placed within the mouth of a bottle, the biasing means acts to cause the retainer member to press the O-ring radially outward against the collar to form a fluid-tight seal with the mouth of the bottle.

대표청구항 ▼

A self-sealing closure device for use with liquid chemical bottles comprising: a. a stem member dimensioned for slidable insertion through the mouth of a bottle and having an enlarged top portion; b. a collar member having a channel formed therethrough for slidably receiving the stem member and havi

A self-sealing closure device for use with liquid chemical bottles comprising: a. a stem member dimensioned for slidable insertion through the mouth of a bottle and having an enlarged top portion; b. a collar member having a channel formed therethrough for slidably receiving the stem member and having an enlarged top portion which is approximately the same diameter as said enlarged portion of said stem member; c. retainer means secured to the distal end of the stem member and dimensioned to fit within the mouth of a bottle; d. resilient biasing means disposed about the stem member between said enlarged top portion and the collar member to urge the collar member toward the retainer means; e. deformable seal means mounted to surround the stem member between the collar member and the retainer means such that, with the retainer means fully inserted within the mouth of a bottle, releasing the biasing means will urge the retainer means toward the collar member and deform the seal means in a radially outward direction to form a fluid-tight seal with the mouth of the bottle; f. channel means formed through the stem member from the end of the stem member to the side of said enlarged portion of said stem member for receiving a tube at each end for withdrawing liquid chemicals from the bottle; and wherein the device can be operated by using one hand to securely grasp and squeeze said stem member and collar member together without bending or crushing said tubes.