Filling device for liquefied gas containers

• US 3,320,981 A
• Filed: 01/15/1965
• Issued: 05/23/1967
• Est. Priority Date: 01/28/1964
• Status: Expired due to Term

• Current Assignee: Enrico Loewenthal
• Original Assignee: Enrico Loewenthal
• Inventors: ENRICO LOEWENTHAL
• Application Number:
  US04/425,797
• Time in Patent Office: 858 Days
• US Class Current: 141/302
• CPC Class Codes: F16K 1/303 with a valve member, e.g. stem or shaft, passing through the seat
• CPC Class Codes: F17C 13/04 Arrangement or mounting of valves valves per se F16K ; snap-coupling of nipples F16L37/00
• CPC Class Codes: F17C 2205/0323 Valves
• CPC Class Codes: F17C 2205/0382 Constructional details of valves, regulators
• CPC Class Codes: F17C 5/02 for filling with liquefied gases
• CPC Class Codes: Y10T 137/86332 Vent and inlet or outlet in unitary mounting

Claims

1. A FILLING DEVICE FOR A LIQUEFIED GAS CHAMBER, COMPRISING A HOLLOW BODY CONNECTED TO A BOTTOM WALL OF SAID CONTAINER, FIRST RADIAL BORES IN SAID HOLLOW BODY CONNECTING THE INTERIOR OF SAID HOLLOW BODY WITH THE INTERIOR OF SAID CONTAINER, A PLUNGER SLIDABLE WITHIN SAID HOLLOW BODY TO ADMIT A SUPPLY OF LIQUEFIED GAS INTO SAID CONTAINER, A SPRING URGING SAID PLUNGER TOWARDS A LOWER POSITION, AN AXIAL BLIND BORE IN SAID PLUNGER, SECOND RADIAL BORES IN SAID PLUNGER CONNECTING SAID AXIAL BLIND BORE WITH SAID INTERIOR OF THE HOLLOW BODY, SEALING MEANS BETWEEN SAID PLUNGER AND SAID HOLLOW BODY, SAID SEALING MEANS CLOSING SAID SECOND RADIAL BORES WHEN SAID PLUNGER IS IN SAID LOWER POSITION, A VENT VALVE CONNECTED TO A TOP WALL OF SAID CONTAINER, AND A CONNECTING SHAFT BETWEEN SAID PLUNGER AND SAID VENT VALVE, WHEREBY SAID VENT VALVE IS ACTUATED BY SAID CONNECTING SHAFT TO ALLOW RELEASE OF VAPORS FROM SAID CONTAINER EACH TIME SAID PLUNGER IS DISPLACED FOR INTRODUCING A SUPPLY OF LIQUEFIED GAS INTO SAID CONTAINER.