Liquid dosing devices
作者： David John Pritchett , Jeffrey William Spencer , Brian Robert Law
DOI:
关键词: Repeated dosing 、 Engineering drawing 、 Seal (mechanical) 、 Tube (container) 、 Biomedical engineering 、 Materials science
摘要: A dosing device for dispensing liquid from a container (1) in which flow through openings (23) to an outlet tube (44) is blocked after controlled delay by obturator (3) moveable within control chamber (2) mounted neck (101) behind the (44). Movement of governed restricted (28) at rear chamber. Restoration back facilitates repeated dosing. An elastomeric element (6) resiliently deformable material promotes seal achieve cleanly defined dose. In one proposal coats surface and / or (64) cut off flow. Another provides one-way valve (63) blocking enable rapid recovery operation.
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