초록 ▼

A child-resistant container and closure assembly having a container neck with a first screw thread and two first locking elements located below the first screw thread on opposite sides of the container neck. A closure for the container neck has a second screw thread complementary to the first screw

A child-resistant container and closure assembly having a container neck with a first screw thread and two first locking elements located below the first screw thread on opposite sides of the container neck. A closure for the container neck has a second screw thread complementary to the first screw thread, a resiliently deformable skirt, and two second locking elements on opposite sides of the resiliently deformable skirt. The first and second locking elements mutually engage in ratchet fashion when the closure is screwed onto a fully engaged position on the container neck and subsequently block unscrewing of the closure unless a radial pressure is applied to the skirt at positions spaced from the locking elements to deform the skirt to release the locking elements. The first and second threads are two-start, fast-turn threads so that the closure can be moved from a substantially fully disengaged position to a substantially fully engaged position on the neck by rotation through about 180.degree. or less.

대표청구항 ▼

[ I claim:] [1.] A child-resistant container and closure assembly comprising:a container neck comprising a first screw thread comprising first thread portions projecting from the neck and two first locking elements located below said first screw thread on opposite sides of the container neck;a closu

[ I claim:] [1.] A child-resistant container and closure assembly comprising:a container neck comprising a first screw thread comprising first thread portions projecting from the neck and two first locking elements located below said first screw thread on opposite sides of the container neck;a closure for the container neck comprising a resiliently deformable skirt a second screw thread complementary to the first screw thread and comprising second thread portions projecting inwardly from the skirt, and two second locking elements on opposite sides of the resiliently deformable skirt;wherein the first and second locking elements mutually engage in ratchet fashion when the closure is screwed onto a fully engaged position on the container neck and subsequently block unscrewing of the closure unless a radial pressure is applied to the skirt at positions spaced from the locking elements to deform the skirt to release the locking elements; andwherein the first and second threads are two-start, substantially continuous steeply pitched threads, wherein the closure can be moved from a substantially fully disengaged position to a substantially fully engaged position on the neck by through a single smooth rotation through about 90.degree. or less and wherein said first thread portions are spaced around said neck sufficiently closely to block non-rotational axial movement of said first thread portions past said second thread portions.