Patent US3118385A successfully refreshed from Google Patents.
US3118385A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multi-stage pump
Assignee: —
•
Filing: —
•
Granted: 1964-01-21
•
Expires: 1981-01-21
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:56
CPC Classifications
F; F04; F04D; F04D29/00; F04D29/18; F04D29/22; F04D29/2238; F04D13/00; F04D13/02; F04D13/06; F04D13/08; F04D13/10; Y; Y10; Y10S; Y10S415/00; Y10S415/901
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
122 words
A FLUID PUMP, COMPRISING: A CYLINDRICAL BODY; A PUMP BOWL WITHIN SAID BODY, SAID PUMP BOWL HAVING A CENTRAL OPENING DEFINED BY AN UPSTANDING INNER WALL FORMING A RING, SAID INNER WALL HAVING A CIRCUMFERENTIAL SERIES OF PORTS ADJACENT ITS UPPER EDGE; A FLUID MOVING UNIT DISPOSED WITHIN SAID BOWL, SAID FLUID MOVING UNIT COMPRISING A PLATE RESTING ON THE UPPER EDGE SURFACE OF SAID RING, PROPELLER AND IMPELLER BLADES SECURED TO THE RESPECTIVE UPPER AND LOWER SURFACES, OF SAID PLATE OUTWARDLY OF THE CYLINDRICAL PLANE DEFINED BY SAID RING, AN UPSTANDING MEMBER CENTRALLY SECURED TO SAID PLATE; A SERIES OF SUCTORIALPROPELLER BLADES RADIALLY SECURED TO THE UPPER END PORTION OF SAID CYLINDRICAL MEMBER; AND MEANS FOR ROTATING SAID FLUID MOVING UNIT.
Claim 2
Dependent Claim
122 words
A FLUID PUMP, COMPRISING: A CYLINDRICAL BODY; A PUMP BOWL WITHIN SAID BODY, SAID PUMP BOWL HAVING A CENTRAL OPENING DEFINED BY AN UPSTANDING INNER WALL FORMING A RING, SAID INNER WALL HAVING A CIRCUMFERENTIAL SERIES OF PORTS ADJACENT ITS UPPER EDGE; A FLUID MOVING UNIT DISPOSED WITHIN SAID BOWL, SAID FLUID MOVING UNIT COMPRISING A PLATE RESTING ON THE UPPER EDGE SURFACE OF SAID RING, PROPELLER AND IMPELLER BLADES SECURED TO THE RESPECTIVE UPPER AND LOWER SURFACES, OF SAID PLATE OUTWARDLY OF THE CYLINDRICAL PLANE DEFINED BY SAID RING, AN UPSTANDING MEMBER CENTRALLY SECURED TO SAID PLATE; A SERIES OF SUCTORIALPROPELLER BLADES RADIALLY SECURED TO THE UPPER END PORTION OF SAID CYLINDRICAL MEMBER; AND MEANS FOR ROTATING SAID FLUID MOVING UNIT.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-01-20 | 1967-07-22 | 1968-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-01-20 | 1971-07-22 | 1972-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-01-20 | 1975-07-22 | 1976-01-21 | $7700.00 | Window Closed / Lapsed |