Patent US3090421A successfully refreshed from Google Patents.
← Back to Patent Explorer
US3090421A Expired / Lapsed US ⏱️ 0.0 years remaining

Fuel supply system for an internal combustion engine

Assignee: Daimler Benz AG
•
Filing: 1957-03-25
•
Granted: 1963-05-21
•
Expires: 1977-03-25
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

No abstract record available.

Inventors

  • 👤 Ulrich W P Anders

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-08 18:52
CPC Classifications
F; F02; F02M; F02M37/00; F02M37/04; F02M37/08; F02M37/10; Y; Y10; Y10T; Y10T137/00; Y10T137/2931; Y10T137/3115; Y10T137/3127

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 195 words
A FUEL SUPPLY SYSTEM FOR AND INTERNAL CONBUSTION ENGINE COMPRISING AN INJECTION PUMP, A MAIN FUEL TANK, A SUCTION LINE INCLUDING AN ENGINE DRIVEN FUEL PUMP INTERCONNECTING SAID MAIN FUEL TANK AND SAID INJECTION PUMP, AN AUXILIARY FUEL TANK, SUCTION LINE MEANS INTERCONNECTING SAID MAIN FUEL TANK AND SAID AUXILIARY TANK, A BOOSTER PUMP INCLUDING A PUMP BODY, MOVABLE PUMP MEANS WITHIN SAID PUMP BODY, SAID PUMP BODY BEING DISPOSED IN SAID AUXILIARY FUEL TANK AND SAID MOVABLE PUMP MEANS BEING SUBMERGED BELOW THE NORMAL FUEL LEVEL IN SAID MAIN FUEL TANK, LINE MEANS CONNECTING SAID PUMP BODY AND SAID SECTION LINE, MEANS FOR DRIVING SAID MOVABLE PUMP MEANS INCLUDING AN ELECTRIC MOTOR, AND MEANS FURNISHING PROTECTION AGAINST THE DANGER OF FUEL IGNITION BY SPARKS FROM SAID ELECTRIC MOTOR COMPRISING ELONGATED HOUSING MEANS DISPODED IN A LENGTHWISE UPWARDLY EXTENDING POSITION, SAID HOUSING MEANS HAVING UPPER AND LOWER END PORTIONS, SAID LOWER END PORTION BEING JOINED TO SAID PUMP BODY AND SAID UPPER END PORTION BEING JOINED TO SAID ELECTRIC MOTOR, SAID ELONGATED HOUSING MEANS BEING DISPOSED IN A POSITION ABOVE SAID AUXILIARY FUEL TANK AND REMOTELY SPACING SAID ELECTRIC MOTOR FROM SAID AUXILIARY FUEL TANK.
Claim 2
Dependent Claim 195 words
A FUEL SUPPLY SYSTEM FOR AND INTERNAL CONBUSTION ENGINE COMPRISING AN INJECTION PUMP, A MAIN FUEL TANK, A SUCTION LINE INCLUDING AN ENGINE DRIVEN FUEL PUMP INTERCONNECTING SAID MAIN FUEL TANK AND SAID INJECTION PUMP, AN AUXILIARY FUEL TANK, SUCTION LINE MEANS INTERCONNECTING SAID MAIN FUEL TANK AND SAID AUXILIARY TANK, A BOOSTER PUMP INCLUDING A PUMP BODY, MOVABLE PUMP MEANS WITHIN SAID PUMP BODY, SAID PUMP BODY BEING DISPOSED IN SAID AUXILIARY FUEL TANK AND SAID MOVABLE PUMP MEANS BEING SUBMERGED BELOW THE NORMAL FUEL LEVEL IN SAID MAIN FUEL TANK, LINE MEANS CONNECTING SAID PUMP BODY AND SAID SECTION LINE, MEANS FOR DRIVING SAID MOVABLE PUMP MEANS INCLUDING AN ELECTRIC MOTOR, AND MEANS FURNISHING PROTECTION AGAINST THE DANGER OF FUEL IGNITION BY SPARKS FROM SAID ELECTRIC MOTOR COMPRISING ELONGATED HOUSING MEANS DISPODED IN A LENGTHWISE UPWARDLY EXTENDING POSITION, SAID HOUSING MEANS HAVING UPPER AND LOWER END PORTIONS, SAID LOWER END PORTION BEING JOINED TO SAID PUMP BODY AND SAID UPPER END PORTION BEING JOINED TO SAID ELECTRIC MOTOR, SAID ELONGATED HOUSING MEANS BEING DISPOSED IN A POSITION ABOVE SAID AUXILIARY FUEL TANK AND REMOTELY SPACING SAID ELECTRIC MOTOR FROM SAID AUXILIARY FUEL TANK.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1966-05-20 1966-11-19 1967-05-21 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1970-05-20 1970-11-19 1971-05-21 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1974-05-20 1974-11-19 1975-05-21 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag