Liquid collector pressurizing and filtering means
US5139654A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 22, 1990 |
| Grant date | Aug 18, 1992 |
| Priority date | — |
| Expiry date | Oct 22, 2010 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B49/081
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Apparatus for quickly taking and filtering liquid taken from a body of liquid comprises a bailer for taking and containing a sample of the liquid therein. The bailer has an upper end portion adapted for quickly disconnecting and connecting a liquid pressurizing device including a hand operated fluid pump or regulated tank of compressed gas. A lower end portion of the bailer is provided with a ball or poppet check valve controlling the flow of liquid to and from the bailer by way of an internal opening adapted for quickly connecting and disconnecting a filtering unit to and from the bailer. The filtering unit has a disposable filter element inside of a housing attached to an upper adapter with a liquid passage therein quickly inserted into sealing engagement with the internal opening of the bailer and which opens the ball check valve. A lower end of the filter housing is connected by another adapter into which a flow control valve is quickly connected to and disconnectable from. A tubular needle or tube extends from the lower end of the flow control valve for the purpose of piercing the sealable septum of a vial and directing the filtered liquid into the vial or another suitable con…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.