| 摘要 |
<p>The push‑button dispenser with compressed‑gas capsule (7) for bottles (2) consists of a head which can be screwed onto the bottle (2) and have a lateral pouring channel (4), a push‑button (15) on its upper side and downwardly projecting suction tube (11). The latter is intended to extend as far as the base of the bottle (2) which is to be fitted with the dispenser, and it opens out at the top into a valve device in the head. This valve device has a regulating means (39) which can be moved axially in relation to the bottle (2) and is biased in the closing direction by a spring (17), and can be opened by manual pressure being applied to the push‑button (15) from above. This reduces pressure in the interior of the suction tube (11) to ambient pressure, as a result of which liquid is expelled from the bottle (2), by way of the internal pressure prevailing in the bottle (2), out of the lower mouth opening of the suction tube (11) via the pouring channel (4). As a special feature, the dispenser is configured as a single‑piece housing (14) with inner housing (37), which contains all the other elements of the dispenser, or bears the same externally, wherein the housing (14) forms, at the side, an open accommodating cylinder (8), with a steel piercing tube (23) installed concentrically therein so as to be directed outwards, for the purpose of accommodating a compressed‑gas capsule (7). A compressed‑gas capsule (7) can be pushed into this accommodating cylinder from beneath until its lead‑sealed piercing closure reaches the tip of the piercing tube (23), and it is retained in this position by static friction. The action of an associated threaded cap (6) being screwed on then causes this compressed‑gas capsule (7) to be pushed further into the accommodating cylinder (8) in the axial direction, in which case the piercing tube (23), which is cut obliquely at the front, pierces, with sealing action, the lead‑sealed piercing closure of the compressed‑gas capsule.</p> |
