Safety means for liquid dispensing nozzles

• US 3,148,713 A
• Filed: 02/20/1962
• Issued: 09/15/1964
• Est. Priority Date: 02/20/1962
• Status: Expired due to Term

• Current Assignee: Howland B. Jones Jr
• Original Assignee: Howland B. Jones Jr
• Inventors: Jones, Howland B. Jr.
• Application Number:
  US04/176,854
• Time in Patent Office: 938 Days
• US Class Current: 141/346
• CPC Class Codes: B67D 7/3236 relating to electrostatic charges
• CPC Class Codes: B67D 7/48 by making use of air suction through an opening closed by the rising liquid
• CPC Class Codes: Y10S 141/01 Magnetic

Claims

8. IN APPARATUS FOR SELECTIVELY DISPENSING LIQUID INTO A RECEPTACLE OPENING AT LEAST PARTLY DEFINED BY ELECTRICALLY CONDUCTIVE MATERIAL THROUGH A MOVABLE NOZZLE ADAPTED TO BE MANUALLY INSERTED INTO SAID OPENING, SAFETY MEANS FOR PREVENTING INADVERTENT FLOW OF SAID LIQUID FROM SAID NOZZLE WHEN SAID NOZZLE IS REMOVED FROM SAID OPENING COMPRISING A VALVE SEPARATE FROM SAID RECEPTACLE FOR CONTROLLING LIQUID FLOW THROUGH SAID NOZZLE, ELECTRICALLY ACTIVATED VALVE ACTUATING MEANS SEPARATE FROM SAID RECEPTACLE FOR OPENING AND CLOSING SAID VALVE, AND ELECTRICALLY CONDUCTIVE CIRCUIT MEANS ON SAID NOZZLE ENGAGEABLE WITH SAID CONDUCTIVE MATERIAL AT SAID RECEPTACLE OPENING FOR TRANSMITTING ELECTRICAL CURRENT FROM SAID CONDUCTIVE MATERIAL TO SAID CIRCUIT MEANS TO ACTIVATE SAID ACTUATING MEANS AND OPEN SAID VALVE SOLELY WHEN SAID NOZZLE IS INSERTED IN SAID OPENING.