US3196795A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electromagnetic pump system
Assignee: North American Aviation Corp
•
Filing: 1963-01-02
•
Granted: 1965-07-27
•
Expires: 1983-01-02
Abstract
No abstract record available.
Inventors
- 👤 Richard S Baker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 08:58
CPC Classifications
H; H02; H02K; H02K44/00; H02K44/02; H02K44/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
127 words
AN ELECTROMAGNETIC PUMP SYSTEM FOR PUMPING ELECTRICALLY CONDUCTIVE LIQUIDS COMPRISING: (A) FIRST AND SECOND GENERALLY CUP-SHAPED MEMBERS, (B) A RIM PORTION ON SAID FIRST CUP-SHAPED MEMBER COOPERATING WITH A RIM PORTION ON SAID SECOND CUPSHAPED MEMBER TO NEST SAID FIST MEMBER WITHIN SAID SECOND MEMBER IN A SPACED APART RELATIONSHIP TO EACH OTHER, (C) A PUMP REGION DEVELOPED BETWEEN SAID FIRST AND SECOND MEMBERS, (D) AT LEAST ONE INLET PORT TO SAID PUMP REGION IN SAID SECOND MEMBER, (E) AT LEAST ONE OUTLET PORT FORM SAID PUMP REGION, (F) A FIELD WOUND HELICAL ROTOR ROTATABLY POSITIONED WITHIN SAID FIRST CUP-SHAPED MEMBER AND SPACED THEREFROM TO DEFINE A COOLANT FLOW PATH, (G) SUPPORT MEANS FOR SAID HELICAL ROTOR INCLUDING A BEARING ARRANGEMENT REMOVED FROM SAID FIRST CUPSHAPED MEMBER,
Claim 2
Dependent Claim
127 words
AN ELECTROMAGNETIC PUMP SYSTEM FOR PUMPING ELECTRICALLY CONDUCTIVE LIQUIDS COMPRISING: (A) FIRST AND SECOND GENERALLY CUP-SHAPED MEMBERS, (B) A RIM PORTION ON SAID FIRST CUP-SHAPED MEMBER COOPERATING WITH A RIM PORTION ON SAID SECOND CUPSHAPED MEMBER TO NEST SAID FIST MEMBER WITHIN SAID SECOND MEMBER IN A SPACED APART RELATIONSHIP TO EACH OTHER, (C) A PUMP REGION DEVELOPED BETWEEN SAID FIRST AND SECOND MEMBERS, (D) AT LEAST ONE INLET PORT TO SAID PUMP REGION IN SAID SECOND MEMBER, (E) AT LEAST ONE OUTLET PORT FORM SAID PUMP REGION, (F) A FIELD WOUND HELICAL ROTOR ROTATABLY POSITIONED WITHIN SAID FIRST CUP-SHAPED MEMBER AND SPACED THEREFROM TO DEFINE A COOLANT FLOW PATH, (G) SUPPORT MEANS FOR SAID HELICAL ROTOR INCLUDING A BEARING ARRANGEMENT REMOVED FROM SAID FIRST CUPSHAPED MEMBER,
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-07-26 | 1969-01-25 | 1969-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-26 | 1973-01-25 | 1973-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-26 | 1977-01-25 | 1977-07-27 | $7700.00 | Window Closed / Lapsed |