Fuel pump

• US 3,109,559 A
• Filed: 07/12/1960
• Issued: 11/05/1963
• Est. Priority Date: 07/12/1960
• Status: Expired due to Term

• Current Assignee: William F. Wilburn
• Original Assignee: William F. Wilburn
• Inventors: Wilburn, William F.
• Application Number:
  US04/042,419
• Time in Patent Office: 1,211 Days
• US Class Current: 222/2
• CPC Class Codes: G07F 13/025 wherein the volume is determined during delivery

Claims

1. IN A COIN-OPERATED FUEL PUMPING APPARATUS, A METERING DEVICE HAVING A CYLINDER EQUIPPED WITH FLOW PORTS AT OPPOSITE ENDS THEREOF AND HAVING A RECIPROCABLE PISTON THEREIN, A MAIN VALVE EQUIPPED WITH A VALVE MEMBER MOVABLE BETWEEN FIRST AND SECOND POSITIONS, A FUEL RESERVOIR, FUEL-PUMPING MEANS COMMUNICATING WITH SAID RESERVOIR AND SAID MAIN VALVE, FLUID FLOW CONDUITS EXTENDING BETWEEN SAID MAIN VALVE, AND SAID FLOW PORTS AT OPPOSITE ENDS OF SAID CYLINDER, A DISCHARGE CONDUIT EXTENDING FROM SAID MAIN VALVE, SAID VALVE MEMBER WHEN IN SAID FIRST POSITION DIRECTING FLUID FROM SAID PUMPING MEANS TO THE FLOW PORT IN ONE END OF SAID CYLINDER AND FROM THE OPPOSITE END OF SAID CYLINDER INTO SAID DISCHARGE PASSAGE, AND WHEN IN SAID SECOND POSITION DIRECTING FLUID INTO SAID OPPOSITE END OF SAID CYLINDER AND OUT OF SAID ONE END INTO SAID DISCHARGE PASSAGE, ELECTRICALLY-ACTUATED MEANS FOR MOVING SAID VALVE MEMBER BETWEEN SAID FIRST AND SECOND POSITIONS, SAID METERING DEVICE BEING PROVIDED WITH LIMIT SWITCHES ELECTRICALLY CONNECTED WITH SAID LAST-MENTIONED MEANS FOR SHIFTING SAID VALVE MEMBER BETWEEN SAID FIRST AND SECOND POSITIONS WHEN SAID PISTON REACHES THE END OF