| 摘要 |
<p>A dispensing closure for chemical and pharmaceutical substances, particularly narcotic liquids, narcotic gases, or the like, the closure comprised of a sealing cap (1) which is to be applied to the opening of the substance-dispensing container, and further comprised of an adapter piece (2) with code markings (3), to establish a joint between the adapter and a receiving structure on the container being filled, which receiving structure has corresponding markings, wherewith the sealing cap (1) and the adapter (2) are interconnected by a flexible, liquid-passing tube (6) which opens into a transverse bore hole passage (9) for liquid, and by a flexible air-delivery tube (8) which opens into a transverse air admission bore hole (10). The adapter piece (2), the flexible, liquid-passing tube (6), and the sealing cap (1) are comprised of a single piece having a longitudinal bore (11) passing through its entire length, wherewith the opening of said bore at the adapter end of the bore is sealed off with a sealing stopper (13) having a blind hole ( 12) into which the flexible air-delivery tube (8) extends, wherewith the air-delivery tube (8) is held in place in the blind hole. Air-delivery tube (8) communicates with the atmosphere via a transverse bore hole (10) which passes through the adapter piece (2), the sealing stopper (13), and the wall of the air-delivery tube (8). The flexible, liquid-passing tube (6) is provided with a corrugation (14).</p> |
