Patent US3325327A successfully refreshed from Google Patents.
US3325327A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for making a hose of helically wrapped reinforcing and web components
Assignee: Airco Inc
•
Filing: 1964-04-27
•
Granted: 1967-06-13
•
Expires: 1984-04-27
Abstract
No abstract record available.
Inventors
- 👤 Alfred H Swan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 06:43
CPC Classifications
B; B29; B29D; B29D23/00; B29D23/001; B29C; B29C53/00; B29C53/56; B29C53/58; B29C53/60; B29C53/607; C; C01; C01G; C01G43/00; C01G43/01; C01G43/025; C01G43/04; F; F16; F16L; F16L11/00; F16L11/04; F16L11/11; F16L11/112; B29K; B29K2021/00; B29L; B29L2023/00; B29L2023/18
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
110 words
THE METHOD OF MANUFACTURING A HOSE BY HELICALLY WINDING AN ELONGATED HOSE-FORMING STRIP IN OVERLAPPING HELICAL CONVOLUTIONS COMPRISING: (A) WINDING SAID HOSE-FORMING STRIP ON A PLURALITY OF LONGITUDINAL SUPPORTING MEMBERS FORMING A LONGITUDINALLY EXTENDING SURFACE RECEIVING A PLURALITY OF CONVOLUTIONS OF SAID WINDINGS, (B) CAUSING SAID WOUND CONVOLUTIONS TO GRIP SAID SUPPORTING ELEMENTS AROUND THE WINDING SURFACE FORMED THEREBY, AND (C) ADVANCING SOME OF SAID SUPPORTING ELEMENTS WHILE RETRACTING OTHERS THEREOF SO THAT THE MAJOR PORTION OF THE WINDING SURFACE FORMED BY SAID ELEMENTS IS ADVANCED IN THE DIRECTION OF WINDING AND SAID STRIP IS WOUND IN HELICAL CONVOLUTIONS ANS ADVANCED IN THE DIRECTION OF WINDING ON SAID SUPPORTING MEMBERS.
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) | 1970-06-12 | 1970-12-12 | 1971-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-12 | 1974-12-12 | 1975-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-12 | 1978-12-12 | 1979-06-13 | $7700.00 | Window Closed / Lapsed |