Device for continuous delivery of metered amounts of liquid

• US 3,115,280 A
• Filed: 06/07/1961
• Issued: 12/24/1963
• Est. Priority Date: 06/07/1961
• Status: Expired due to Term

• Current Assignee: Samuel P. Battista
• Original Assignee: Samuel P. Battista
• Inventors: Battista, Samuel P.
• Application Number:
  US04/115,532
• Time in Patent Office: 930 Days
• US Class Current: 222/95
• CPC Class Codes: A61M 2005/14204 with gas-producing electrochemical cell
• CPC Class Codes: A61M 5/155 pressurised by gas introduced into the reservoir
• CPC Class Codes: A61M 5/2046 Media being expelled from injector by gas generation, e.g. explosive charge
• CPC Class Codes: F04B 43/10 Pumps having fluid drive
• CPC Class Codes: G01N 1/14 Suction devices, e.g. pumps; Ejector devices
• CPC Class Codes: G01N 2030/326 pumps
• CPC Class Codes: G01N 30/91 Application of the sample
• CPC Class Codes: G05D 7/0617 specially adapted for fluid materials

Claims

1. APPARATUS FOR DELIVERING SMALL QUANTITIES OF A LIQUID, COMPRISING A CLOSED CONTAINER, A FIRST LIQUID AND A SECOND LIQUID CONTAINER, A FLEXIBLE PARTITION IN THE FORM OF A COLLAPSIBLE BAG SEPARATING SAID FIRST LIQUID AND SAID SECOND LIQUID AND IMPERMEABLE TO EACH, SAID FIRST LIQUID BEING ELECTROLYZABLE INTO HYDROGEN AND OXYGEN BY THE PASSAGE OF AN ELECTRIC CURRENT THERETHROUGH, A PAIR OF ELECTRODES PROJECTING THROUGH A WALL OF SAID CONTAINER INTO SAID FIRST LIQUID, A DELIVERY TUBE PASSING THROUGH A WALL OF SAID CONTAINER AND ARRANGED TO PROVIDE COMMUNICATION BETWEEN SAID SECOND LIQUID AND THE OUTSIDE OF SAID CONTAINER, MEANS FOR SUPPLYING ELECTRIC CURRENT ACROSS SAID ELECTRODES, WHEREBY TO CAUSE EVOLUTION OF HYDROGEN AND OXYGEN FROM SAID FIRST LIQUID TO FORM A BODY OF GAS WITHIN SIAD CONTAINER, THEREBY CAUSING FLUID PRESURE TO BE EXERTED UPON SAID FLEXIBLE PARTITION AND THUS