Patent US3169398A successfully refreshed from Google Patents.
US3169398A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic drive for fluid flow meters
Assignee: HERSEY SPARLING METER CO
•
Filing: 1961-12-21
•
Granted: 1965-02-16
•
Expires: 1981-12-21
Abstract
No abstract record available.
Inventors
- 👤 Ray C Sparling
- 👤 Joseph A Braun
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:57
CPC Classifications
G; G01; G01F; G01F1/00; G01F1/05; G01F1/10; G01F1/115; G01F1/1155
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
145 words
A DRIVE FOR A FLUID FLOW METER OR THE LIKE COMPRISING: A SUPPORT STRUCTURE; A FIRST SHAFT ROTATABLY MOUNTED BY SAID SUPPORT STRUCTURE; IMPELLER MEANS ON SAID SHAFT TO ROTATE SAID SHAFT IN RESPONSE TO MOVEMENT IN A BODY OF FLUID IN CONTACT WITH SAID IMPELLER; A FIRST MAGNET MEANS MOUNTED ON THE SHAFT TO ROTATE THEREWITH; A SECOND SHAFT ROTATABLY MOUNTED BY SAID SUPPORT STRUCTURE AT AN ANGLE TO THE FIRST SHAFT AND ADAPTED FOR DRIVING CONNECTION TO A REGISTER OF THE METER; AND A SECOND MAGNET MEANS MOUNTED ON THE SECOND SHAFT TO ROTATE THEREWITH, THE SECOND MAGNET MEANS BEING MAGNETICALLY COUPLED TO THE FIRST MAGNET MEANS WHEREBY ROTATION OF THE FIRST MAGNET MEANS CAUSES ROTATION OF THE SECOND MAGNET MEANS AND THE ASSOCIATED SHAFT; EACH OF SAID MAGNET MEANS COMPRISING A PERMANENT MAGNET HAVING BEVELED POLE FACES LYING IN A FRUSTOCONICAL SURFACE.
Claim 2
Dependent Claim
145 words
A DRIVE FOR A FLUID FLOW METER OR THE LIKE COMPRISING: A SUPPORT STRUCTURE; A FIRST SHAFT ROTATABLY MOUNTED BY SAID SUPPORT STRUCTURE; IMPELLER MEANS ON SAID SHAFT TO ROTATE SAID SHAFT IN RESPONSE TO MOVEMENT IN A BODY OF FLUID IN CONTACT WITH SAID IMPELLER; A FIRST MAGNET MEANS MOUNTED ON THE SHAFT TO ROTATE THEREWITH; A SECOND SHAFT ROTATABLY MOUNTED BY SAID SUPPORT STRUCTURE AT AN ANGLE TO THE FIRST SHAFT AND ADAPTED FOR DRIVING CONNECTION TO A REGISTER OF THE METER; AND A SECOND MAGNET MEANS MOUNTED ON THE SECOND SHAFT TO ROTATE THEREWITH, THE SECOND MAGNET MEANS BEING MAGNETICALLY COUPLED TO THE FIRST MAGNET MEANS WHEREBY ROTATION OF THE FIRST MAGNET MEANS CAUSES ROTATION OF THE SECOND MAGNET MEANS AND THE ASSOCIATED SHAFT; EACH OF SAID MAGNET MEANS COMPRISING A PERMANENT MAGNET HAVING BEVELED POLE FACES LYING IN A FRUSTOCONICAL SURFACE.
References Cited (Backward Citations)
US2722617A
Cited
US2770131A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-02-16 | 1968-08-17 | 1969-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-02-16 | 1972-08-17 | 1973-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-02-16 | 1976-08-17 | 1977-02-16 | $7700.00 | Window Closed / Lapsed |