美國
US 12,702,993 B2
Manually operated pump
US 12,702,993 B2 是美國專利商標局（USPTO）的核准專利，日期 2026-08-11。申請人：SILGAN DISPENSING SYSTEMS MILANO S.R.L.。PDF 可在本頁下載，未登入每天最多 5 篇。
- 申請人
- SILGAN DISPENSING SYSTEMS MILANO S.R.L.
- 發明人
- ANDREA MARELLI
- 公開日
- 2026-08-11
- 申請日
- 2024-03-28
- 文件種類
- B2 核准公告
- 也寫作
- US 12,702,993 B2 · US12702993 · 12702993
摘要
A manually operated pump (1), comprising a cup-shaped body (2) inside which a piston (3)—coupled with a hollow stem (4) for the movement thereof within the cup-shaped body (2)—sealingly slides, the pump being equipped with a base (5) which seals the cup-shaped body (2) and which is endowed with a hole (11) for the stem (4), the said stem (4) and the base (5) being torsionally coupled, at least part of the cup-shaped body (2) and of the piston (3) delimiting a compression chamber (6) coupled with at least one suction valve element (8) and with a delivery valve element (9), the said delivery val…
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專利局網站： 美國專利商標局（USPTO）