Device for automatically drawing samples from a flowing medium

Claim 1

A DEVICE FOR AUTOMATICALLY DRAWING PROPORTIONAL SAMPLES FROM A MEDIUM FLOWING UNDER PRESSURE, COMPRISING TWO READILY SEPARABLE STRUCTURAL HOUSING PARTS, AN INTERMEDIATE PLATE DISPOSED BETWEEN SAID PARTS, A MEMBRANE DISPOSED BETWEEN SAID INTERMEDIATE PLATE AND ONE OF SAID HOUSING PARTS, SAID INTERMEDIATE PLATE BEING COOPERABLE WITH SAID MEMBRANE TO DEFINE A SAMPLE CHAMBER, ONE OF SAID HOUSING PARTS BEING PROVIDED WITH MEANS FORMING A WITHDRAWAL CONNECTION FOR A RECEPTACLE CONTAINING THE MEDIUM TO BE METRED AND ALSO FORMING A DELIVERY CONNECTION FOR THE SAMPLE OBTAINED, SAID INTERMEDIATE PLATE HAVING PASSAGE THEREIN COMMUNICATING WITH SAID CHAMBER AND DISPOSED FOR COMMUNICATION WITH SAID CONNECTIONS, SAID MEMBRANE BEING OPERATIVELY RELATED TO SAID PASSAGEWAYS TO SELECTIVELY OPERATIVELY CLOSE THE RESPECTIVE PASSAGEWAYS AND THUS CONTROL THE FLOW TO AND FROM SAID CHAMBER, SAID OTHER HOUSING PART HAVING OPENINGS FORMED THEREIN, MEANS COOPERABLE WITH SAID OPENINGS FOR SELECTIVELY CONDUCTING TO SAID MEMBRANE AN AUXILIARY FORCE WHICH HAS AN OPERATIVE PRESSURE EXCEEDING THAT OF SAID MEDIUM, OPERATIVE UPON SAID MEMBRANE TO EFFECT CLOSURE OF THE PASSAGEWAY TO SAID CHAMBER AND EXPERT PRESSURE UPON THE MEDIUM THEREIN FOR EFFECTING DISCHARGE THEREFROM TO SAID DELIVERY CONNECTION, SAID OTHER HOUSING PART HAVING ANOTHER OPENING FORMED THEREIN FOR CONDUCTING TO SAID MEMBERANE A FORCE OPERATIVE TO EFFECT CLOSURE OF THE PASSAGEWAY TO SAID DELIVERY CONNECTION DURING FILLING OF SAID CHAMBER, SAID MEMBRANE BEING SELECTIVELY MOVABLE UNDER THE ACTION OF PRESSURE FROM SAID MEDIUM TO PERIODICALLY OPEN THE RESPECTIVE PASSAGEWAYS TO PERMIT FLOW OF THE MEDIUM TO SAID CHAMBER AND THEREFROM TO SAID DELIVERY CONNECTION.

Claim 2

A DEVICE FOR AUTOMATICALLY DRAWING PROPORTIONAL SAMPLES FROM A MEDIUM FLOWING UNDER PRESSURE, COMPRISING TWO READILY SEPARABLE STRUCTURAL HOUSING PARTS, AN INTERMEDIATE PLATE DISPOSED BETWEEN SAID PARTS, A MEMBRANE DISPOSED BETWEEN SAID INTERMEDIATE PLATE AND ONE OF SAID HOUSING PARTS, SAID INTERMEDIATE PLATE BEING COOPERABLE WITH SAID MEMBRANE TO DEFINE A SAMPLE CHAMBER, ONE OF SAID HOUSING PARTS BEING PROVIDED WITH MEANS FORMING A WITHDRAWAL CONNECTION FOR A RECEPTACLE CONTAINING THE MEDIUM TO BE METRED AND ALSO FORMING A DELIVERY CONNECTION FOR THE SAMPLE OBTAINED, SAID INTERMEDIATE PLATE HAVING PASSAGE THEREIN COMMUNICATING WITH SAID CHAMBER AND DISPOSED FOR COMMUNICATION WITH SAID CONNECTIONS, SAID MEMBRANE BEING OPERATIVELY RELATED TO SAID PASSAGEWAYS TO SELECTIVELY OPERATIVELY CLOSE THE RESPECTIVE PASSAGEWAYS AND THUS CONTROL THE FLOW TO AND FROM SAID CHAMBER, SAID OTHER HOUSING PART HAVING OPENINGS FORMED THEREIN, MEANS COOPERABLE WITH SAID OPENINGS FOR SELECTIVELY CONDUCTING TO SAID MEMBRANE AN AUXILIARY FORCE WHICH HAS AN OPERATIVE PRESSURE EXCEEDING THAT OF SAID MEDIUM, OPERATIVE UPON SAID MEMBRANE TO EFFECT CLOSURE OF THE PASSAGEWAY TO SAID CHAMBER AND EXPERT PRESSURE UPON THE MEDIUM THEREIN FOR EFFECTING DISCHARGE THEREFROM TO SAID DELIVERY CONNECTION, SAID OTHER HOUSING PART HAVING ANOTHER OPENING FORMED THEREIN FOR CONDUCTING TO SAID MEMBERANE A FORCE OPERATIVE TO EFFECT CLOSURE OF THE PASSAGEWAY TO SAID DELIVERY CONNECTION DURING FILLING OF SAID CHAMBER, SAID MEMBRANE BEING SELECTIVELY MOVABLE UNDER THE ACTION OF PRESSURE FROM SAID MEDIUM TO PERIODICALLY OPEN THE RESPECTIVE PASSAGEWAYS TO PERMIT FLOW OF THE MEDIUM TO SAID CHAMBER AND THEREFROM TO SAID DELIVERY CONNECTION.