Patent BE615319A successfully refreshed from Google Patents.
← Back to Patent Explorer
US3567339A Expired / Lapsed US ⏱️ 0.0 years remaining

Multiducted electromagnetic pump

Assignee: National Aeronautics and Space Administration
•
Filing: 1969-04-16
•
Granted: 1971-03-02
•
Expires: 1989-04-16
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract AN APPARATUS FOR PUMPING CONDUCTIVE LIQUIDS IS DESCRIBED WHICH COMPRISES A SINGLE TOROIDAL ELECTROMAGNETIC PUMP STRUCTURE WHEREIN THERE ARE A PLURALITY OF PUMP PASSAGES WITH EACH PASSAGE HAVING A TWO PUMP DUCT SANDWICH THEREIN. EACH PUMP DUCT HAS ASSOCIATED THEREWITH A PLURAL TUBE HEADER ASSEMBLY CONNECTED TO ITS INPUT AND OUTPUT PORTIONS. EACH TUBE OF THE PLURAL TUBE HEADER ASSEMBLIES IS ELECTRICALLY INSULATED FROM ADJACENT TUBES THEREBY MINIMIZING THE BYPASS CURRENT FLOW. CURRENT FLOW THROUGH EACH TWIN PUMP DUCT COMBINATION IS IN A COUNTER FLOW ARRANGEMENT TO MINIMIZE FIELD DISTORTION. THE SINGLE TOROIDAL PUMP STRUCTURE MAY THEREFORE COMPRISE ANY CONVENIENT NUMBER OF INDIVIDUAL PUMPS FORMED WITHIN THE COMPACT CONFIGURATION.

Inventors

  • 👤 Gerald M Kikin
  • 👤 Jerry P Davis

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-04 08:53
CPC Classifications
H; H02; H02K; H02K44/00; H02K44/02; H02K44/04

Claims Analysis

Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.

References Cited (Backward Citations)

No citation records indexed.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1974-03-01 1974-08-31 1975-03-02 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1978-03-01 1978-08-31 1979-03-02 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1982-03-01 1982-08-31 1983-03-02 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag