| 摘要 |
PCT No. PCT/CA92/00150 Sec. 371 Date May 12, 1994 Sec. 102(e) Date May 12, 1994 PCT Filed Apr. 10, 1992 PCT Pub. No. WO92/19528 PCT Pub. Date Nov. 12, 1992.A reuseable gasketless spout adaptable to conversion to a pump dispenser for fluid contained in a pouch made of inextensible film, comprises a spout-tube and a plunger with a conical tip, the plunger movable coaxially within the spout-tube. The spout is inserted into the pouch, its plunger first puncturing the pouch film, and the edges of the opening produced surround and form a gasketless seal with the outside wall of the spout-tube when the spout is fully inserted. The spout, after full insertion into the pouch, may be converted into a pump dispenser for fluid in the pouch by removing the plunger and replacing it with a pump which has a supply-tube extending coaxially through the spout-tube, into the fluid within the pouch. The dispenser, having the spout-tube in common with the spout is, like the spout, reuseable. |
