Liquid dispensing device with a cap and a diaphragm

摘要

A liquid dispensing device comprising a hollow body having an opening in a lower end thereof for receiving liquid, and an integrated cap member arranged to sealingly close the body, said cap member comprising a resilient diaphragm which is deformable in a downwards direction. The device is suitable for use in automated apparatus.

主权项

1. A liquid dispensing device consisting of a hollow body (7) and a cap member (1), wherein:
the hollow body (7) has an opening (9) in a lower end thereof for receiving liquid and an upper opening; and the cap member (1) is arranged to sealingly close the upper opening in the body (7), said cap member (1) comprising:
a resilient planar diaphragm (2) situated substantially perpendicular to a longitudinal axis of the body (7) which is deformable in a downwards direction;a resilient side wall (3) which extends downwardly from the diaphragm (2) and engages either an internal or external surface of the body (7); anda discrete protuberance (5) projecting upwards from a central region of the diaphragm (2), wherein the discrete protuberance (5) is arranged to receive an applied displacement force;wherein the diaphragm (2) has an elasticity corresponding to a SHORE rating from 30 A to 120 A.