首页>
外国专利>
Expanding sealing plug for tampon - has component expanding when soluble material is dissolved by fluid in container
Expanding sealing plug for tampon - has component expanding when soluble material is dissolved by fluid in container
展开▼
机译:棉塞的膨胀密封塞-当可溶性材料被容器中的流体溶解时,成分会膨胀
展开▼
页面导航
摘要
著录项
相似文献
摘要
The plug increases in dia. on encountering fluid so as to improve the sealing effect. It has an expanding component enclosed by a sealing body, and mechanical means causing expansion and functioning when a material, soluble in the fluid, is dissolved. The body is of fibrous compressed and absorbent material. Alternatively the body can be of flexible, elastic and watertight material, such as an elastomer. The expanding component can comprise an expanding outer vessel and a coaxial rigid gas-filled inner one. The two are connected together to allow gas to flow between them. A flexible diaphragm is held by a soluble tablet against a semi-rigid wall between it and the inlet to the inner vessel so as to shut off the connection, via an intermediate piece of calibrated thickness. Means for delivering fluid to the tablet are included.
展开▼