Patent US3311523A successfully refreshed from Google Patents.
US3311523A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for forming a continuous reinforced flexible hose
Assignee: Callahan Mining Corp
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Filing: 1964-03-25
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Granted: 1967-03-28
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Expires: 1984-03-25
Abstract
No abstract record available.
Inventors
- 👤 Lester E Carpenter
- 👤 Richard B Pelley
- 👤 Joseph T Hall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:10
CPC Classifications
B; B29; B29C; B29C53/00; B29C53/56; B29C53/58; B29C53/581; B29C53/582
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
173 words
AN APPARATUS FOR FORMING A CONTINUOUS PRE-STRESSED FLEXIBLE HOSE FROM A CONTINUOUS FLEXIBLE STRIP HAVING A CONTINUOUS REINFORCING SPRING WIRE SECURED THERETO SUBSTANTIALLY ADJACENT ONE EDGE THEREOF COMPRISING (A) MEANS FOR CONTINUOUSLY PLASTICALLY DEFORMING THE WIRE REINFORCED STRIP INTO A FIST HELICAL PATH, (B) FIRST AND SECOND FORMING ROLLERS, AT LEAST ONE OF SAID ROLLERS HAVING FIRST AND SECOND ANNUALR GROOVES THEREIN. (C) SAID FORMING ROLLERS BEING MOUNTED FOR ROTATION ABOUT PARALLEL AXES, THE FLEXIBLE STRIP BEING PASSED FROM SAID FIRST HELICAL PATH BETWEEN SAID ROLLERS WITH ITS WIRE REINFORCED EDGE RECEIVED IN SAID FIRST GROOVE AND BEING THERAFTER LOOPED AROUND ONE OF SAID ROLLERS WITH ITS WIRE REINFORCED EDGE RECEIVED IN SAID SECOND GROOVE IN A SELECTED MOUNT OF OVERLAPPING WITH THE OTHER EDGE OF SAID STRIP, (D) AND MEANS FOR CONTINOUSLY COUNTER ROTATING SAID ROLLERS, (E) SAID FIRST AND SECOND GROOVES BEING SPACED APART AXIALLY BY A DISTANCE DIFFERENT FROM THE PITCH OF SAID FIRST HELICAL PATH SO THAT SAID STRIP IS ELASTICALLY CONSTRAINED TO ACHIEVE SAID SELECTED AMOUNT OF OVERLAPPING.
Claim 2
Independent Claim
173 words
AN APPARATUS FOR FORMING A CONTINUOUS PRE-STRESSED FLEXIBLE HOSE FROM A CONTINUOUS FLEXIBLE STRIP HAVING A CONTINUOUS REINFORCING SPRING WIRE SECURED THERETO SUBSTANTIALLY ADJACENT ONE EDGE THEREOF COMPRISING (A) MEANS FOR CONTINUOUSLY PLASTICALLY DEFORMING THE WIRE REINFORCED STRIP INTO A FIST HELICAL PATH, (B) FIRST AND SECOND FORMING ROLLERS, AT LEAST ONE OF SAID ROLLERS HAVING FIRST AND SECOND ANNUALR GROOVES THEREIN. (C) SAID FORMING ROLLERS BEING MOUNTED FOR ROTATION ABOUT PARALLEL AXES, THE FLEXIBLE STRIP BEING PASSED FROM SAID FIRST HELICAL PATH BETWEEN SAID ROLLERS WITH ITS WIRE REINFORCED EDGE RECEIVED IN SAID FIRST GROOVE AND BEING THERAFTER LOOPED AROUND ONE OF SAID ROLLERS WITH ITS WIRE REINFORCED EDGE RECEIVED IN SAID SECOND GROOVE IN A SELECTED MOUNT OF OVERLAPPING WITH THE OTHER EDGE OF SAID STRIP, (D) AND MEANS FOR CONTINOUSLY COUNTER ROTATING SAID ROLLERS, (E) SAID FIRST AND SECOND GROOVES BEING SPACED APART AXIALLY BY A DISTANCE DIFFERENT FROM THE PITCH OF SAID FIRST HELICAL PATH SO THAT SAID STRIP IS ELASTICALLY CONSTRAINED TO ACHIEVE SAID SELECTED AMOUNT OF OVERLAPPING.
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) | 1970-03-27 | 1970-09-26 | 1971-03-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-27 | 1974-09-26 | 1975-03-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-27 | 1978-09-26 | 1979-03-28 | $7700.00 | Window Closed / Lapsed |