US2991210A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making a reinforced plastic vessel with an integral head
Assignee: AO Smith Corp
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Filing: 1959-07-16
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Granted: 1961-07-04
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Expires: 1979-07-16
Abstract
No abstract record available.
Inventors
- 👤 Matkovich George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:19
CPC Classifications
B; B29; B29C; B29C53/00; B29C53/56; B29C53/58; B29C53/60; B29C53/602; B29C53/80; B29C53/8008; B29C53/805; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1052
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
138 words
IN A METHOD OF FABRICATING A REINFORCED PLASTIC VESSEL WITH AN INTEGRAL HEAD, THE STEPS OF LOOSELY DISPOSING A SERIES OF FLEXIBLE REINFORCING MEMBERS LONGITUDINALLY OVER THE OUTER SURFACE OF A MANDREL, SAID MANDREL HAVING AT LEAST ONE CIRCUMFERENTIALLY EXTENDING RECESS AND SAID FLEXIBLE MEMBERS EXTENDING ACROSS SAID RECESS, WINDING A STRAND IN GENERALLY CIRCUMFERENTIAL PATTERN ON THE OUTER SURFACE OF SAID MANDREL TO FORM THE WALL OF THE VESSEL AND WINDING SAID STRAND INTO SAID RECESS TO DRAW THE FLEXIBLE MEMBERS THEREIN, AND CONTINUING THE WINDING OF SAID STRAND UNTIL THE WINDING IN SAID RECESS IS SUBSTANTIALLY FLUSH WITH SAID WALL AND SAID WINDING WITHIN SAID RECESS CONSTITUTING THE HEAD OF THE VESSEL, SAID FLEXIBLE MEMBERS EXTENDING GENERALLY RADIALLY WITHIN THE HEAD AND AXIALLY WITHIN THE WALL TO REINFORCE THE HEAD AND THE WALL OF THE VESSEL.
Claim 2
Dependent Claim
138 words
IN A METHOD OF FABRICATING A REINFORCED PLASTIC VESSEL WITH AN INTEGRAL HEAD, THE STEPS OF LOOSELY DISPOSING A SERIES OF FLEXIBLE REINFORCING MEMBERS LONGITUDINALLY OVER THE OUTER SURFACE OF A MANDREL, SAID MANDREL HAVING AT LEAST ONE CIRCUMFERENTIALLY EXTENDING RECESS AND SAID FLEXIBLE MEMBERS EXTENDING ACROSS SAID RECESS, WINDING A STRAND IN GENERALLY CIRCUMFERENTIAL PATTERN ON THE OUTER SURFACE OF SAID MANDREL TO FORM THE WALL OF THE VESSEL AND WINDING SAID STRAND INTO SAID RECESS TO DRAW THE FLEXIBLE MEMBERS THEREIN, AND CONTINUING THE WINDING OF SAID STRAND UNTIL THE WINDING IN SAID RECESS IS SUBSTANTIALLY FLUSH WITH SAID WALL AND SAID WINDING WITHIN SAID RECESS CONSTITUTING THE HEAD OF THE VESSEL, SAID FLEXIBLE MEMBERS EXTENDING GENERALLY RADIALLY WITHIN THE HEAD AND AXIALLY WITHIN THE WALL TO REINFORCE THE HEAD AND THE WALL OF THE VESSEL.
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) | 1964-07-03 | 1965-01-02 | 1965-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-03 | 1969-01-02 | 1969-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-03 | 1973-01-02 | 1973-07-04 | $7700.00 | Window Closed / Lapsed |