Ball valve

• US 3,146,792 A
• Filed: 12/11/1963
• Issued: 09/01/1964
• Est. Priority Date: 12/11/1963
• Status: Expired due to Term

• Current Assignee: Edward V. Mcmullin, William H. Donnelly
• Original Assignee: Edward V. Mcmullin, William H. Donnelly
• Inventors: Donnelly, William H., Mcmullin, Edward V.
• Application Number:
  US04/331,081
• Time in Patent Office: 265 Days
• US Class Current: 137/614.17
• CPC Class Codes: F16K 5/0605 with particular plug arrangements, e.g. particular shape or built-in means
• CPC Class Codes: F16K 5/0642 the spherical plug being insertable from one and only one side of the housing
• CPC Class Codes: F16L 55/46 Launching or retrieval of pigs or moles
• CPC Class Codes: Y10T 137/4891 With holder for solid, flaky or pulverized material to be dissolved or entrained
• CPC Class Codes: Y10T 137/7847 With leak passage
• CPC Class Codes: Y10T 137/8803 Also carries head of other valve

Claims

1. A VALVE COMPRISING A TUBULAR BODY HAVING A LATERAL OPENING THEREIN, A BALL HAVING A HOLE THERETHROUGH ROTATABLE IN THE BODY BETWEEN A FIRST POSITION IN WHICH THE HOLE IS ALIGNED WITH THE BODY FOR FLOW THERETHROUGH AND A SECOND POSITION IN WHICH THE HOLE IS ALIGNED WITH THE LATERAL OPENING AND THE BALL BLOCKS FLOW THROUGH THE BODY, A LATERAL TUBULAR EXTENSION ON SAID TUBULAR BODY DEFINING SAID LATERAL OPENING, A REMOVABLE CAP SUBSTANTIALLY CLOSING THE OUTER END OF SAID EXTENSION TO PROVIDE A PRESSURE CHAMBER WITHIN SAID EXTENSION, RELIEF MEANS ASSOCIATED WITH SAID PRESSURE CHAMBER FOR BLEEDING THE LATTER AND THE HOLE IN SAID BALL WHEN THE BALL IS ROTATED FROM ITS FIRST TO ITS SECOND POSITION, AN INSERT IN THE HOLE IN THE BALL ACCESSIBLE THROUGH SAID LATERAL TUBULAR EXTENSION WHEN THE BALL IS ROTATED TO SAID SECOND POSITION, SAID INSERT HAVING A PAS-