Gas line safety shut off device

• US 2,710,666 A
• Filed: 07/27/1953
• Issued: 06/14/1955
• Est. Priority Date: 07/27/1953
• Status: Expired due to Term

• Current Assignee: Russell D. May
• Original Assignee: Russell D. May
• Inventors: May, Russell D.
• Application Number:
  US03/370,444
• Time in Patent Office: 687 Days
• US Class Current: 96/406
• CPC Class Codes: F16K 17/04 spring-loaded
• CPC Class Codes: Y10T 137/74 Lost motion mechanism
• CPC Class Codes: Y10T 137/7426 Float co-axial with valve or port

Claims

1. A GAS LINE SAFETY SHUTOFF VALVE DEVICE COMPRISING AN ELONGATED VERTICAL CYLINDRICAL HOUSING HAVING A CHAMBER THEREIN AND A GAS INLET OPENING INTERMEDIATE THE ENDS THEREOF AND A GAS OUTLET OPENING AT THE UPPER PORTION THEREOF ABOVE THE GAS INLET OPENING, A VALVE SEAT SUPPORTING TUBE CONNECTED TO SAID HOUSING HAVING A PASSAGEWAY OPENING TO THE OUTLET OPENING AND EXTENDING DOWN INTO THE CHAMBER OF SAID HOUSING, A SECOND TUBE CONNECTED TO SAID HOUSING AND DEPENDING INTO THE HOUSING CHAMBER EXTERNALLY OF THE FIRST MENTIONED VALVE SEAT PROVIDING TUBE AND SPACED THEREFROM AND DEFINING A CHAMBER EXTENDING TO A POINT BELOW THE VALVE SEAT TUBE, MEANS CLOSING THE LOWER END OF SAID SECOND TUBE, THE SECOND TUBE HAVING INLET PORTS THERETHROUGH OPENING INTO SAID TUBE AND THE HOUSING CHAMBER, A FLOAT IN SAID HOUSING CHAMBER BELOW SAID SECOND TUBE, A STEM UPON SAID FLOAT BEARING IN THE MEANS WHICH CLOSES THE LOWER END OF THE SECOND TUBE, SAID STEM EXTENDING INTO THE CHAMBERS OF BOTH OF SAID TUBES, AND A FLEXIBLE VALVE MOUNTED UPON SAID STEM IN THE SECOND TUBE BELOW THE VALVE SEAT TUBE.