US3388932A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Joint for laminated articles
Assignee: Plastic Engineering and Chemical Co
•
Filing: 1964-02-07
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Granted: 1968-06-18
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Expires: 1984-02-07
Abstract
No abstract record available.
Inventors
- 👤 Richard C Bradley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:09
CPC Classifications
B; B29; B29C; B29C65/00; B29C65/48; B29C65/50; B29C65/5042; B29C66/00; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/1122; B29C66/114; B29C66/1142; B29C66/116; B29C66/1162; B29C66/12; B29C66/122; B29C66/1222; B29C66/1226; B29C66/14; B29C66/50; B29C66/51; B29C66/52; B29C66/522; B29C66/5221; B29C66/5229; B29C66/52295; B29C66/70; B29C66/72; B29C66/721; B29C66/723; F; F16; F16L; F16L13/00; F16L13/10; F16L13/103; F16L47/00; F16L47/02; B29C65/4805; B29C65/483; B29C65/5057; B29C66/7212; B29K; B29K2105/00; B29K2105/06; B29L; B29L2009/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
270 words
IN A JOINT FOR TUBULAR MEMBERS OF THE TYPE FORMED OF A PLURALITY OF LAMINATE LAYERS OF PLASTIC RESIN AND FIBROUS REINFORCING MATERIAL, THE COMBINATION OF A FIRST TUBULAR MEMBER HAVING A LAMINATED WALL PORTION FORMED OF A PLURALITY OF LAYERS OF PLASTIC RESIN AND FIBROUS REINFORCING MATERIAL AND PROVIDED WITH A MALE JOINT END HAVING A FIRST JOINT SURFACE EXTENDING IN A STRAIGHT LINE TAPER ALONG THE LINE OF FROM INNER DIAMETER TO THE OUTER PERIPHERY AT AN ANGLE OF LESS THAN TWO DEGREES WITH RESPECT TO THE LONGITUDINAL AXIS THEREOF FROM ADJACENT THE INNER DIAMETER IN A DIRECTION TOWARD THE OUTER PERIPHERY THEREOF, SAID FIRST JOINT SURFACE EXPOSING AN END OF A SUBSTANTIAL NUMBER OF THE LAYERS OF PLASTIC RESIN AND AN END OF A SUBSTANTIAL NUMBER OF THE FIBERS OF THE FIBROUS REINFORCING MATERIAL THEREOF, THE OUTERMOST END OF SAID FIRST JOINT SURFACE THEREOF EXTENDING IN A LINE PERPENDICULAR TO THE LONGITUDINAL AXIS OF SAID TUBULAR MEMBER FROM THE STRAIGHT LINE TAPER THEREOF TO THE INNER DIAMETER THEREOF; A SECOND TUBULAR MEMBER HAVING A LAMINATED WALL PORTION OF SUBSTANTIALLY THE SAME THICKNESS AS THE WALL PORTION OF SAID FIRST TUBULAR MEMBER AND FORMED OF A PLURALITY OF LAYERS OF PLASTIC RESIN AND FIBROUS REINFORCING MATERIAL AND PROVIDED WITH A FEMALE JOINT END HAVING A SECOND JOINT SURFACE EXTENDING IN A STRAIGHT LINE TAPER ALONG THE LINE OF FROM THE OUTER PERIPHERY TO THE INNER DIAMETER AT AN ANGLE OF LESS THAN TWO DEGREES WITH RESPECT TO THE LONGITUDINAL AXIS THEREOF FROM ADJACENT THE INNER DIAMETER IN A DIRECTION TOWARD THE OUTER PERIPHERY THEREOF, SAID SECOND JOINT SUR-
Claim 2
Dependent Claim
270 words
IN A JOINT FOR TUBULAR MEMBERS OF THE TYPE FORMED OF A PLURALITY OF LAMINATE LAYERS OF PLASTIC RESIN AND FIBROUS REINFORCING MATERIAL, THE COMBINATION OF A FIRST TUBULAR MEMBER HAVING A LAMINATED WALL PORTION FORMED OF A PLURALITY OF LAYERS OF PLASTIC RESIN AND FIBROUS REINFORCING MATERIAL AND PROVIDED WITH A MALE JOINT END HAVING A FIRST JOINT SURFACE EXTENDING IN A STRAIGHT LINE TAPER ALONG THE LINE OF FROM INNER DIAMETER TO THE OUTER PERIPHERY AT AN ANGLE OF LESS THAN TWO DEGREES WITH RESPECT TO THE LONGITUDINAL AXIS THEREOF FROM ADJACENT THE INNER DIAMETER IN A DIRECTION TOWARD THE OUTER PERIPHERY THEREOF, SAID FIRST JOINT SURFACE EXPOSING AN END OF A SUBSTANTIAL NUMBER OF THE LAYERS OF PLASTIC RESIN AND AN END OF A SUBSTANTIAL NUMBER OF THE FIBERS OF THE FIBROUS REINFORCING MATERIAL THEREOF, THE OUTERMOST END OF SAID FIRST JOINT SURFACE THEREOF EXTENDING IN A LINE PERPENDICULAR TO THE LONGITUDINAL AXIS OF SAID TUBULAR MEMBER FROM THE STRAIGHT LINE TAPER THEREOF TO THE INNER DIAMETER THEREOF; A SECOND TUBULAR MEMBER HAVING A LAMINATED WALL PORTION OF SUBSTANTIALLY THE SAME THICKNESS AS THE WALL PORTION OF SAID FIRST TUBULAR MEMBER AND FORMED OF A PLURALITY OF LAYERS OF PLASTIC RESIN AND FIBROUS REINFORCING MATERIAL AND PROVIDED WITH A FEMALE JOINT END HAVING A SECOND JOINT SURFACE EXTENDING IN A STRAIGHT LINE TAPER ALONG THE LINE OF FROM THE OUTER PERIPHERY TO THE INNER DIAMETER AT AN ANGLE OF LESS THAN TWO DEGREES WITH RESPECT TO THE LONGITUDINAL AXIS THEREOF FROM ADJACENT THE INNER DIAMETER IN A DIRECTION TOWARD THE OUTER PERIPHERY THEREOF, SAID SECOND JOINT SUR-
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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) | 1971-06-18 | 1971-12-18 | 1972-06-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-06-18 | 1975-12-18 | 1976-06-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-06-18 | 1979-12-18 | 1980-06-18 | $7700.00 | Window Closed / Lapsed |