Patent US3149571A successfully refreshed from Google Patents.
← Back to Patent Explorer
US3149571A Expired / Lapsed US ⏱️ 0.0 years remaining

Deep well liquid removal system

Assignee: Individual
•
Filing: 1959-12-11
•
Granted: 1964-09-22
•
Expires: 1979-12-11
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

No abstract record available.

Inventors

  • 👤 Nichols Victoria

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-29 19:00
CPC Classifications
F; F04; F04D; F04D9/00; F04D9/04; F04D9/06; Y; Y10; Y10T; Y10T137/00; Y10T137/2931; Y10T137/3109

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 303 words
A FLUID REMOVAL SYSTEM COMPRISING A FIRST CONDUIT LEADING UPWARDLY FROM A SOURCE OF FLUID SUPPLY, A FIRST ENCLOSURE IN COMMUNICATION WITH SAID FIRST CONDUIT, A SECOND ENCLOSURE VENTED TO ATMOSPHERE AT THE TOP THEREOF, A SECOND CONDUIT LEADING FROM SAID FIRST ENCLOSURE TO SAID SECOND ENCLOSURE, A FIRST PUMP IN SAID SECOND CONDUIT, A THIRD CONDUIT LEADING FROM SAID SECOND ENCLOSURE TO SAID FIRST CONDUIT, SAID FIRST CONDUIT AND SAID THIRD CONDUIT DEFINING VENTURI JET MEANS AT A LEVEL BELOW SAID ENCLOSURES, A THIRD ENCLOSURE, A FOURTH CONDUIT LEADING FROM SAID SECOND ENCLOSURE TO SAID THIRD ENCLOSURE, A SECOND PUMP IN SAID FOURTH CONDUIT, A FIFTH CONDUIT LEADING FROM SAID THIRD ENCLOSURE TO SAID FIRST ENCLOSURE, VALVE MEANS CLOSING SAID FIFTH CONDUIT WHEN THE PRESSURE IN SAID FIRST ENCLOSURE IS BELOW ATMOSPHERIC PRESSURE AND OPENING SAID FIFTH CONDUIT WHEN THE PRESSURE IN SAID FIRST ENCLOSURE IS RELATIVELY HIGHER THAN THE PRESSURE SAID VALVES CLOSES AT SAID FIRST ENCLOSURE HAVING VENT MEANS THEREIN TO VENT GASES FROM THE FIRST ENCLOSURE IN RESPONSE TO PRESSURIZED LIQUID INTRODUCED FROM SAID THIRD ENCLOSURE, MEANS THEREAFTER CLOSING THE VALVE MEANS AND ENERGIZING SAID FIRST PUMP AFTER VENTING OF SAID FIRST ENCLOSURE, VALVE MEANS IN SAID FIRST CONDUIT ABOVE SAID VENTURI MEANS PERMITTING FLOW TOWARD SAID FIRST ENCLOSURE AND PREVENTING FLOW FROM SAID FIRST ENCLOSURE, VALVE MEANS IN SAID FIRST-NAMED CONDUIT BELOW SAID VENTURI MEANS CONTROLLING BACK-FLOW THROUGH SAID FIRST-NAMED CONDUIT, VALVE MEANS IN SAID SECOND CONDUIT BETWEEN SAID FIRST ENCLOSURE AND SAID FIRST PUMP PERMITTING FLOW FROM SAID FIRST ENCLOSURE TOWARD SAID FIRST PUMP AND BIASED TOWARD CLOSING SUFFICIENTLY TO AFFORD SAID VENTING OF GASES THROUGH SAID VENT MEANS AND VALVE MEANS IN SAID FOURTH CONDUIT BETWEEN SAID SECOND PUMP AND SAID THIRD ENCLOSURE PREVENTING BACKFLOW FROM SAID THIRD ENCLOSURE, AND OUTLET MEANS FOR SAID THIRD ENCLOSURE.
Claim 2
Dependent Claim 303 words
A FLUID REMOVAL SYSTEM COMPRISING A FIRST CONDUIT LEADING UPWARDLY FROM A SOURCE OF FLUID SUPPLY, A FIRST ENCLOSURE IN COMMUNICATION WITH SAID FIRST CONDUIT, A SECOND ENCLOSURE VENTED TO ATMOSPHERE AT THE TOP THEREOF, A SECOND CONDUIT LEADING FROM SAID FIRST ENCLOSURE TO SAID SECOND ENCLOSURE, A FIRST PUMP IN SAID SECOND CONDUIT, A THIRD CONDUIT LEADING FROM SAID SECOND ENCLOSURE TO SAID FIRST CONDUIT, SAID FIRST CONDUIT AND SAID THIRD CONDUIT DEFINING VENTURI JET MEANS AT A LEVEL BELOW SAID ENCLOSURES, A THIRD ENCLOSURE, A FOURTH CONDUIT LEADING FROM SAID SECOND ENCLOSURE TO SAID THIRD ENCLOSURE, A SECOND PUMP IN SAID FOURTH CONDUIT, A FIFTH CONDUIT LEADING FROM SAID THIRD ENCLOSURE TO SAID FIRST ENCLOSURE, VALVE MEANS CLOSING SAID FIFTH CONDUIT WHEN THE PRESSURE IN SAID FIRST ENCLOSURE IS BELOW ATMOSPHERIC PRESSURE AND OPENING SAID FIFTH CONDUIT WHEN THE PRESSURE IN SAID FIRST ENCLOSURE IS RELATIVELY HIGHER THAN THE PRESSURE SAID VALVES CLOSES AT SAID FIRST ENCLOSURE HAVING VENT MEANS THEREIN TO VENT GASES FROM THE FIRST ENCLOSURE IN RESPONSE TO PRESSURIZED LIQUID INTRODUCED FROM SAID THIRD ENCLOSURE, MEANS THEREAFTER CLOSING THE VALVE MEANS AND ENERGIZING SAID FIRST PUMP AFTER VENTING OF SAID FIRST ENCLOSURE, VALVE MEANS IN SAID FIRST CONDUIT ABOVE SAID VENTURI MEANS PERMITTING FLOW TOWARD SAID FIRST ENCLOSURE AND PREVENTING FLOW FROM SAID FIRST ENCLOSURE, VALVE MEANS IN SAID FIRST-NAMED CONDUIT BELOW SAID VENTURI MEANS CONTROLLING BACK-FLOW THROUGH SAID FIRST-NAMED CONDUIT, VALVE MEANS IN SAID SECOND CONDUIT BETWEEN SAID FIRST ENCLOSURE AND SAID FIRST PUMP PERMITTING FLOW FROM SAID FIRST ENCLOSURE TOWARD SAID FIRST PUMP AND BIASED TOWARD CLOSING SUFFICIENTLY TO AFFORD SAID VENTING OF GASES THROUGH SAID VENT MEANS AND VALVE MEANS IN SAID FOURTH CONDUIT BETWEEN SAID SECOND PUMP AND SAID THIRD ENCLOSURE PREVENTING BACKFLOW FROM SAID THIRD ENCLOSURE, AND OUTLET MEANS FOR SAID THIRD ENCLOSURE.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1967-09-22 1968-03-23 1968-09-22 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1971-09-22 1972-03-23 1972-09-22 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1975-09-22 1976-03-23 1976-09-22 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag