Patent US3106940A successfully refreshed from Google Patents.
US3106940A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture of filament wound articles having reinforcement for openings formed therein
Assignee: Hercules Powder Co
•
Filing: 1961-07-10
•
Granted: 1963-10-15
•
Expires: 1981-07-10
Abstract
No abstract record available.
Inventors
- 👤 Richard E Young
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:58
CPC Classifications
B; B29; B29C; B29C53/00; B29C53/56; B29C53/58; B29C53/60; B29C53/602; B29L; B29L2023/00; B29L2023/22; B29L2031/00; B29L2031/30; B29L2031/3097; Y; Y10; Y10S; Y10S285/00; Y10S285/919; Y10T; Y10T156/00; Y10T156/10; Y10T156/1052; Y10T156/1056; Y10T156/1057
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
A STRUCTURAL ARTICLE HAVING A WALL OF MULTIPLE LAYERS OF INTERMESHED HELICAL FILAMENT WINDINGS INTEGRALLY BONDED TOGETHER WITH A CURED THERMOSETTING RESIN BINDER; (A) SAID WALL HAVING AT LEAST ONE OPENING THERETHROUGH WHICH SEVERS SAID WINDINGS; (B) SAID WALL HAVING AS REINFORCEMENT IN THE PORTIONS THEREOF SURROUNDING EACH SAID OPENING AT LEAST ONE THIN WASHER-LIKE MEMBER INTERPOSED BETWEEN LAYERS OF INTERMESHED HELICAL FILAMENT WINDINGS AND INTEGRALLY BONDED THERETO; (C) SAID MEMBER BEING COMPOSED OF PERIPHERAL WINDINGS OF CONTINUOUS FILAMENT MATERIAL, AND HAVING A PREFORMED AXIAL HOLE; (D) SAID MEMBER BEING DISPOSED SO THAT THE PREFORMED HOLE THEREIN IS IN COAXIAL ALIGNMENT WITH SAID OPENING AND SUBSTANTIALLY CONGRUENT WITH SAID OPENING.
Claim 2
Dependent Claim
110 words
A STRUCTURAL ARTICLE HAVING A WALL OF MULTIPLE LAYERS OF INTERMESHED HELICAL FILAMENT WINDINGS INTEGRALLY BONDED TOGETHER WITH A CURED THERMOSETTING RESIN BINDER; (A) SAID WALL HAVING AT LEAST ONE OPENING THERETHROUGH WHICH SEVERS SAID WINDINGS; (B) SAID WALL HAVING AS REINFORCEMENT IN THE PORTIONS THEREOF SURROUNDING EACH SAID OPENING AT LEAST ONE THIN WASHER-LIKE MEMBER INTERPOSED BETWEEN LAYERS OF INTERMESHED HELICAL FILAMENT WINDINGS AND INTEGRALLY BONDED THERETO; (C) SAID MEMBER BEING COMPOSED OF PERIPHERAL WINDINGS OF CONTINUOUS FILAMENT MATERIAL, AND HAVING A PREFORMED AXIAL HOLE; (D) SAID MEMBER BEING DISPOSED SO THAT THE PREFORMED HOLE THEREIN IS IN COAXIAL ALIGNMENT WITH SAID OPENING AND SUBSTANTIALLY CONGRUENT WITH SAID OPENING.
References Cited (Backward Citations)
US26510A
Cited
USRE25241E
Cited
US1425148A
Cited
US2150412A
Cited
US2690412A
Cited
US2744043A
Cited
US2691403A
Cited
US2814313A
Cited
US2843153A
Cited
US2799524A
Cited
US2866479A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-10-14 | 1967-04-15 | 1967-10-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-10-14 | 1971-04-15 | 1971-10-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-10-14 | 1975-04-15 | 1975-10-15 | $7700.00 | Window Closed / Lapsed |