| 摘要 |
<p>The liquid pump dispenser (10) comprises a pump body (12) including a container closure, a locking sleeve (18) mounted in the pump body (26) and a manually actuated pump plunger. The plunger has a discharge spout which is rotatable in opposite directions and extends through coaxial openings in the closure and sleeve. The locking sleeve has at least one edge wall, defining an abutment shoulder, and at least one upstanding limit stop at one end of the wall. The sleeve has longitudinal grooves (31) at an opposite end of the wall and a detent on the wall adjacent to the groove. The plunger has at least one radially extending projection in engagement with the shoulder to lock the plunger in a raised position.</p> |
