Reverse leakage seal for reciprocating parts

• US 3,146,940 A
• Filed: 04/08/1960
• Issued: 09/01/1964
• Est. Priority Date: 04/08/1960
• Status: Expired due to Term

• Current Assignee: Albert K. Daggett, John B. Day Jr, Joseph H. Mcninch Jr, Rollin J. Mccrory
• Original Assignee: Albert K. Daggett, John B. Day Jr, Joseph H. Mcninch Jr, Rollin J. Mccrory
• Inventors: Mccrory, Rollin J., Mcninch, Joseph H. Jr., Daggett, Albert K., Day, John B. Jr.
• Application Number:
  US04/020,870
• Time in Patent Office: 1,607 Days
• US Class Current: 417/571
• CPC Class Codes: F04B 35/002 driven by internal combustion engines
• CPC Class Codes: F04B 35/008 the means being a fluid transmission link
• CPC Class Codes: F04B 39/0005 adaptations of pistons
• CPC Class Codes: F04B 39/02 Lubrication of machines or engines in general F01M
• CPC Class Codes: F04B 39/041 sealing for a reciprocating rod sealing in general F16J
• CPC Class Codes: F16J 15/40 by means of fluid
• CPC Class Codes: Y10S 277/904 Viscous seal
• CPC Class Codes: Y10S 277/91 O-ring seal

Claims

3. A SEALING CONSTRUCTION FOR RAPIDLY RECIPROCATING POSITIVE DISPLACEMENT GAS COMPRESSORS HAVING A CYLINDER AND A PISTON UNITARY RECIPROCAL THEREIN, HAVING FIRST CLOSURE MEANS FOR ONE END OF SAID CYLINDER FORMING A COMPRESSOR CHAMBER IN CONJUNCTION WITH SAID CYLINDER AND A CONTIGUOUS END OF SAID PISTON, WHEREIN:

SAID CYLINDER IS PROVIDED WITH A SECOND CLOSURE MEANS AT ITS OPPOSITE END FORMING AN EXPANSION CHAMBER IN CONJUNCTION WITH SAID CYLINDER AND THE END OF SAID PISTON OPPOSITE SAID CONTIGUOUS END;

A CONNECTING ROD CONNECTED TO SAID PISTON, PASSING THROUGH SAID SECOND CLOSURE MEANS AND CONNECTED TO AN ACTIVATING MECHANISM;

A FIRST ANNULAR CHAMBER DISPOSED ABOUT SAID CONNECTING ROD BETWEEN SAID EXPANSION CHAMBER AND SAID ACTIVATING MECHANISM;

FIRST COMMUNICATION MEANS BETWEEN SAID FIRST ANNULAR CHAMBER AND SAID EXPANSION CHAMBER;

A SECOND ANNULAR CHAMBER DISPOSED ABOUT SAID CONNECTING ROD BETWEEN SAID FIRST ANNULAR CHAMBER AND SAID ACTIVATING MECHANISM AND CONTAINING A SEALING LIQUID AT A PRESSURE SUFFICIENT TO PROVIDE FLUID FLOW FROM SAID SECOND ANNULAR CHAMBER TOWARD FIRST SAID ANNULAR CHAMBER DURING RECIPROCATION OF SAID CONNECTING ROD;

A SEPARATOR IN COMMUNICATION WITH THE HIGH PRESSURE OUTLET OF SAID COMPRESSOR AND SAID SECOND ANNULAR CHAMBER;

A FIRST