Patent US3295357A successfully refreshed from Google Patents.
US3295357A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Calibrating meters
Assignee: HALMOR IND Inc
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Filing: 1965-04-14
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Granted: 1967-01-03
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Expires: 1985-04-14
Abstract
No abstract record available.
Inventors
- 👤 Joseph C Halpine
- 👤 Bernard M Moroney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 08:02
CPC Classifications
G; G01; G01F; G01F25/00; G01F25/10; G01F25/11
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
224 words
AN APPARATUS FOR USE IN CALIBRATING METERS COMPRISING: (A) A U-SHAPED HORIZONTALLY EXTENDING BARREL OF EVEN INTERNAL DIAMETER; (B) A BALL RECEIVING PORTION AT EACH END OF SAID BARREL, THE BALL RECEIVING PORTION BEING OF ENLARGED INTERNAL DIAMETER AND INCLINED UPWARDLY AT AN ANGLE RELATIVE TO THE HORIZONTAL; (C) A BALL OF EXTERNAL DIAMETER SUBSTANTIALLY EQUAL THE INTERNAL DIAMETER OF THE BARREL, THE BALL FORMING A SEALED PISTON IN SAID BARREL, THE BALL FORMING A EACH BALL RECEIVING PORTION BEING SUFFICIENTLY LARGE THAT THE FORCE EXERTED BY FLUID PASSING BETWEEN THE BALL AND THE INTERNAL DIAMETER AT NORMAL VELOCITIES IS INSUFFICIENT TO OVERCOME THE FORCE OF GRAVITY TENDING TO ROLL THE BALL DOWN THE INCLINED RECEIVING PORTION; (D) A FLUID CONDUCTING FLOW MEANS COMMUNICATING WITH EACH BALL RECEIVING PORTION; (E) FIRST AND SECOND PISTON DETECTING MEANS IN LONGITUDINALLY SPACED RELATIONSHIP AT POINTS IN SAID BARREL ACTUATED BY PASSAGE OF SAID BALL; AND (F) FLUID DIRECTION SWITCHING MEANS COMMUNICATING WITH SAID FLUID CONDUCTING FLOW MEANS WHEREBY FLUID MAY BE CAUSED SELECTABLY TO FLOW IN BOTH DIRECTIONS THROUGH SAID BARREL, SAID BALL BEING MOVED AS A PISTON BY SUCH FLUID FLOW AND WHEREBY SAID BALL ENTERS THE SAID INCLINED ENLARGED BALL RECEIVING PORTION AT THE END OF EACH MOVEMENT BY FLUID FLOW AND WHEREIN SAID BALL AUTOMATICALLY RE-ENTERS SAID PISTON WHEN THE FLUID FLOW IS REVERSED.
Claim 2
Independent Claim
224 words
AN APPARATUS FOR USE IN CALIBRATING METERS COMPRISING: (A) A U-SHAPED HORIZONTALLY EXTENDING BARREL OF EVEN INTERNAL DIAMETER; (B) A BALL RECEIVING PORTION AT EACH END OF SAID BARREL, THE BALL RECEIVING PORTION BEING OF ENLARGED INTERNAL DIAMETER AND INCLINED UPWARDLY AT AN ANGLE RELATIVE TO THE HORIZONTAL; (C) A BALL OF EXTERNAL DIAMETER SUBSTANTIALLY EQUAL THE INTERNAL DIAMETER OF THE BARREL, THE BALL FORMING A SEALED PISTON IN SAID BARREL, THE BALL FORMING A EACH BALL RECEIVING PORTION BEING SUFFICIENTLY LARGE THAT THE FORCE EXERTED BY FLUID PASSING BETWEEN THE BALL AND THE INTERNAL DIAMETER AT NORMAL VELOCITIES IS INSUFFICIENT TO OVERCOME THE FORCE OF GRAVITY TENDING TO ROLL THE BALL DOWN THE INCLINED RECEIVING PORTION; (D) A FLUID CONDUCTING FLOW MEANS COMMUNICATING WITH EACH BALL RECEIVING PORTION; (E) FIRST AND SECOND PISTON DETECTING MEANS IN LONGITUDINALLY SPACED RELATIONSHIP AT POINTS IN SAID BARREL ACTUATED BY PASSAGE OF SAID BALL; AND (F) FLUID DIRECTION SWITCHING MEANS COMMUNICATING WITH SAID FLUID CONDUCTING FLOW MEANS WHEREBY FLUID MAY BE CAUSED SELECTABLY TO FLOW IN BOTH DIRECTIONS THROUGH SAID BARREL, SAID BALL BEING MOVED AS A PISTON BY SUCH FLUID FLOW AND WHEREBY SAID BALL ENTERS THE SAID INCLINED ENLARGED BALL RECEIVING PORTION AT THE END OF EACH MOVEMENT BY FLUID FLOW AND WHEREIN SAID BALL AUTOMATICALLY RE-ENTERS SAID PISTON WHEN THE FLUID FLOW IS REVERSED.
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) | 1970-01-02 | 1970-07-04 | 1971-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-02 | 1974-07-04 | 1975-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-02 | 1978-07-04 | 1979-01-03 | $7700.00 | Window Closed / Lapsed |