US3248272A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making extensible flexible hose
Assignee: Individual
•
Filing: 1963-06-18
•
Granted: 1966-04-26
•
Expires: 1983-06-18
Abstract
No abstract record available.
Inventors
- 👤 Sawada Shigeji
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:25
CPC Classifications
B; B29; B29D; B29D23/00; B29D23/001; B29C; B29C53/00; B29C53/56; B29C53/58; B29C53/583; B29C53/585; B29C53/586; B29K; B29K2021/00; B29K2105/00; B29K2105/06; B29L; B29L2023/00; B29L2023/18; F; F02; F02M; F02M35/00; F02M35/10; F02M35/10091; F02M35/10137
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
88 words
A METHOD OF MAKING AN EXTENSIBLE FLEXIBLE HOSE WHICH COMPRISES APPLYING A LIQUID ELASTIC MATERIAL TO A SEAMLESS TUBE OF KNITTED FABRIC TO FORM A THIN-WALLED TUBING HAVING THE KNITTED FABRIC EMBEDDED THEREIN, EXPANDING THE TUBING WITH AIR UNDER PRESSURE AND MOUNTING SAID TUBING ON A MANDREL, HELICALLY WINDING A STRIP OF RESILIENT MATERIAL AROUND THE PERIPHERY OF THE TUBING ON THE MANDREL WHILE APPLYING AN ADHESIVE AGENT BETWEEN THE STRIP AND THE TUBING, AND REMOVING THE TUBULAR ASSEMBLY FROM THE MANDREL AFTER THE ADHESIVE AGENT HAS SOLIDIFIED.
Claim 2
Independent Claim
88 words
A METHOD OF MAKING AN EXTENSIBLE FLEXIBLE HOSE WHICH COMPRISES APPLYING A LIQUID ELASTIC MATERIAL TO A SEAMLESS TUBE OF KNITTED FABRIC TO FORM A THIN-WALLED TUBING HAVING THE KNITTED FABRIC EMBEDDED THEREIN, EXPANDING THE TUBING WITH AIR UNDER PRESSURE AND MOUNTING SAID TUBING ON A MANDREL, HELICALLY WINDING A STRIP OF RESILIENT MATERIAL AROUND THE PERIPHERY OF THE TUBING ON THE MANDREL WHILE APPLYING AN ADHESIVE AGENT BETWEEN THE STRIP AND THE TUBING, AND REMOVING THE TUBULAR ASSEMBLY FROM THE MANDREL AFTER THE ADHESIVE AGENT HAS SOLIDIFIED.
References Cited (Backward Citations)
US982248A
Cited
US1849717A
Cited
GB552032A
Cited
US2570259A
Cited
US2961007A
Cited
US2749943A
Cited
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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) | 1969-04-25 | 1969-10-25 | 1970-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-25 | 1973-10-25 | 1974-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-25 | 1977-10-25 | 1978-04-26 | $7700.00 | Window Closed / Lapsed |