Safety device for liquid aerating apparatus
US6648028B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 16, 2001 |
| Grant date | Nov 18, 2003 |
| Priority date | — |
| Expiry date | Mar 16, 2021 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16K15/18
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A liquid aerating apparatus—in combination with a cylinder containing gas under pressure (53); a cylinder holder (30) for retaining a pressure gas cylinder; an aerating (61) head for retaining a bottle (63) which contains a liquid to be aerated; an intermediate chamber (38), for receiving gas discharged from the cylinder (531); a cylinder valve (32) for normally preventing discharge from the cylinder into the chamber and permitting it when desired; valve actuating means (17′) which have an inactive position, in which they do not act on the cylinder valve, and an active position, in which they cause the cylinder valve to be opened and gas to be discharged from the cylinder to the intermediate chamber; gas conduit mans (20 connecting the intermediate chamber with the aerating head; and auxiliary valve means (39) for sealing off the intermediate chamber from the conduit means when the cylinder valve is not fully closed and the valve actuating means are in the inactive position. The auxiliary valve means comprises a control chamber (25), a plunger (42) sealing off the control chamber from the intermediate chamber when the valve actuating means are in the inactive position a…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.