US3172428A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flexible hose
Assignee: Associated Electrical Industries Ltd
•
Filing: 1962-06-25
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Granted: 1965-03-09
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Expires: 1982-06-25
Abstract
No abstract record available.
Inventors
- 👤 Tudge Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 02:30
CPC Classifications
F; F16; F16L; F16L11/00; F16L11/04; F16L11/11; F16L11/118; F16L11/10; F16L11/115; F16L11/12; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49877; Y10T29/49908; Y10T29/49925; Y10T29/49927; Y10T29/49929
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
133 words
AN ELECTRICALLY NON-CONDUCTIVE HOSE OF IMPROVED RESISTANCE TO COLLAPSE AGAINST EXTERNAL FLUID PRESSURE CONSISTING OF A NON-CORRUGATED TUBE HAVING A PREDETERMINED FLEXIBILITY, SAID TUBE BEING CONSTITUTED OF A FLEXIBLE ELECTRICALLY INSULATING MATERIAL AND HAVING A THICKNESS SO RELATED TO THE DIAMETER THEREOF AND TO SAID MATERIAL THAT INWARD DISTORTION OF ANY CIRCUMFERENTIAL REGION OF SAID TUBE IS NORMALLY ACCOMPANIED BY AN OUTWARD DISTORTION AT AN ADJACENT CIRCUMFERENTIAL REGION, AND A PLURALITY OF INDIVIDUAL CIRCUMFERENTIAL CONTINUOUS RELATIVELY RIGID RINGS SURROUNDING SAID TUBE IN LONGITUDINALLY SPACED APART RELATION, SAID SPACING OF SAID RIGID RINGS BEING SUFFICIENT TO SUBSTANTIALLY PRESERVE SAID FLEXIBILITY, EACH OF SAID RINGS HAVING ITS INNER SURFACE CONTIGUOUS WITH A CIRCUMFERENTIAL REGION OF THE OUTER SURFACE OF SAID TUBE AND EFFECTIVE TO PREVENT OUTWARD DISTORTION ALONG SAID CONTIGUOUS PORTIONS OF SAID OUTER SURFACE.
Claim 2
Dependent Claim
133 words
AN ELECTRICALLY NON-CONDUCTIVE HOSE OF IMPROVED RESISTANCE TO COLLAPSE AGAINST EXTERNAL FLUID PRESSURE CONSISTING OF A NON-CORRUGATED TUBE HAVING A PREDETERMINED FLEXIBILITY, SAID TUBE BEING CONSTITUTED OF A FLEXIBLE ELECTRICALLY INSULATING MATERIAL AND HAVING A THICKNESS SO RELATED TO THE DIAMETER THEREOF AND TO SAID MATERIAL THAT INWARD DISTORTION OF ANY CIRCUMFERENTIAL REGION OF SAID TUBE IS NORMALLY ACCOMPANIED BY AN OUTWARD DISTORTION AT AN ADJACENT CIRCUMFERENTIAL REGION, AND A PLURALITY OF INDIVIDUAL CIRCUMFERENTIAL CONTINUOUS RELATIVELY RIGID RINGS SURROUNDING SAID TUBE IN LONGITUDINALLY SPACED APART RELATION, SAID SPACING OF SAID RIGID RINGS BEING SUFFICIENT TO SUBSTANTIALLY PRESERVE SAID FLEXIBILITY, EACH OF SAID RINGS HAVING ITS INNER SURFACE CONTIGUOUS WITH A CIRCUMFERENTIAL REGION OF THE OUTER SURFACE OF SAID TUBE AND EFFECTIVE TO PREVENT OUTWARD DISTORTION ALONG SAID CONTIGUOUS PORTIONS OF SAID OUTER SURFACE.
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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) | 1968-03-08 | 1968-09-07 | 1969-03-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-08 | 1972-09-07 | 1973-03-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-08 | 1976-09-07 | 1977-03-09 | $7700.00 | Window Closed / Lapsed |