EDUCTOR TYPE PROPORTIONER

• US 3,445,067 A
• Filed: 10/24/1965
• Issued: 05/20/1969
• Est. Priority Date: 10/24/1965
• Status: Expired due to Term

• Current Assignee: Garland L. Sheldall
• Original Assignee: Garland L. Sheldall
• Inventors: Sheldall, Garland L.
• Application Number:
  US04/504,581
• Time in Patent Office: 1,304 Days
• US Class Current: 239/318
• CPC Class Codes: A47L 15/4427 entrained in the water supply line by a pressure drop, e.g. resulting from a Venturi throat
• CPC Class Codes: E03C 1/046 Adding soap, disinfectant, or the like in the supply line or at the water outletpreventing contamination of drinking-water pipes E03C1/10
• CPC Class Codes: Y10T 137/86823 Rotary valve
• CPC Class Codes: Y10T 137/87595 Combining of three or more diverse fluids
• CPC Class Codes: Y10T 137/87627 Flow control means is located in aspirated fluid inlet
• CPC Class Codes: Y10T 137/87643 With condition responsive valve

Claims

1. IN AN EDUCTOR FOR DRAWING A SECOND LIQUID INTO A CARRIER STREAM OF A FIRST LIQUID, THE COMBINATION WHICH COMPRISES:

MEANS COUPLING SAID STREAM TO A FIRST SUBSTANTIALLY CYLINDRICAL CHAMBER;

AN ELONGATED INLET THROAT CHAMBER OF CONSTANT DIAMETER FOR RECEIVING THE LIQUID CARRIER STREAM FROM SAID FIRST CHAMBER, THE DIAMETER OF SAID INLET THROAT BEING SUBSTANTIALLY SMALLER THAN THE DIAMETER OF SAID FIRST CHAMBER;

AN EXPANSION CHAMBER OF GREATER DIAMETER AND LENGTH THAN SAID THROAT CHAMBER AND COAXIALLY ARRANGED THEREWITH TO RECEIVE THE CARRIER STREAM;

A SECONDARY DUCT OPENING INTO THE SIDE OF SAID EXPANSION CHAMBER ON ONE END AND COMMUNICATING WITH A SUPPLY OF THE SECOND LIQUID ON ITS OPPOSITE END;

CONTROL MEANS INTERPOSED IN SAID SECONDARY DUCT HAVING A FIRST POSITION AND A SECOND POSITION WHEREBY IN SAID FIRST POSITION, THE SECOND LIQUID IS CONDUCTED VIA SAID SECONDARY DUCT TO SAID EXPANSION CHAMBER AND WHEN IN SAID SECOND POSITION, THE SUPPLY OF THE SECOND FLUID IS INTERRUPTED AT WHICH TIME SAID EXPANSION CHAMBER IS VENTED TO ATMOSPHERE;

SAID CONTROL MEANS INCLUDING A ROTATABLE VALVE HAVING A PASSAGE EXTENDING THERETHROUGH ADAPTED TO COMMUNICATE BETWEEN IN-LINE DUCT SEGMENTS OF SAID SECONDARY DUCT WHEN SAID CONTROL MEANS IS IN ITS FIRST POSITION AND AN ELONGATED SLOT FORMED IN SAID VALVE TRANSVERSE TO SAID VALVE PASSAGE ADAPTED TO COMMUNICATE BETWEEN SAID SECONDARY DUCT AND ATMOSPHERE TO EFFECTIVELY VENT SAID EXPANSION CHAMBER;

AND VACUUM BREAKER MEANS WITHIN SAID FIRST CHAMBER FOR VENTING SAID FIRST CHAMBER TO ATMOSPHERE.