Liquid supply apparatus
US5411052A · kind A · utility
196Cited by
11References
24Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 15, 1993 |
| Grant date | May 2, 1995 |
| Priority date | — |
| Expiry date | Apr 15, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7761
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Liquid supply apparatus is disclosed for controlling the supply of liquid to humidifier apparatus. The liquid supply apparatus has a chamber with an inlet through which a liquid such as water is supplied to the chamber. The chamber has a flow detector to detect liquid entering the chamber and a level detector near the base of the chamber in a narrow portion of the chamber which, in conjunction with a calibrated orifice at the chamber outlet, provides an indication of the rate of liquid flow from the chamber. Control of supply of liquid is performed by a magnetically activated valve member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.