Patent US3290419A successfully refreshed from Google Patents.
US3290419A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making rail anchor
Assignee: Poor and Co
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Filing: 1965-05-14
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Granted: 1966-12-06
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Expires: 1985-05-14
Abstract
No abstract record available.
Inventors
- 👤 Emory L Groff
- 👤 Charles T Walker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:45
CPC Classifications
E; E01; E01B; E01B13/00; E01B13/02; B; B29; B29C; B29C53/00; B29C53/56; B29C53/564; B29C70/00; B29C70/04; B29C70/06; B29C70/10; B29C70/16; B29C70/20; B29C70/205; E01B2201/00; E01B2201/04; E01B2201/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
185 words
A METHOD OF FORMING A RAIL ANCHOR OF PLASTIC MATERIAL INCLUDING A LONGITUDINAL BASE, A NOSE DISPOSED ABOVE SAID BASE AND AN UPSTANDING HOOK PORTION; COMPRISING THE STEPS OF: DEPOSITING STRANDS OF GLASS-FILLED PLASTIC RESIN AROUND A JIG HAVING TOP, BOTTOM AND TWO END SURFACES PROVIDING AN OUTER CONTOUR APPROXIMATELY THE DESIRED INNER CONTOUR OF THE FORMED ANCHOR, SAID STRANDS DEPOSITED BY WINDING FROM A POINT ADJACENT ONE END SURFACE OF SAID JIG IN A FIRST DIRECTION ACROSS THE BOTTOM OF SAID JIG TO FROM SAID RAIL ANCHOR BASE, CONTAINING THE WINDING BY LOOPING SAID STRANDS AROUND THE OTHER OF SAID JIG END SURFACES IN AN UPWARD DIRECTION NORMAL TO SAID FIRST DIRECTION AND IN A FIGURE-8 PATTERN PROVIDING CROSING OF THE STRANDS TO FORM SAID RAIL ANCHOR HOOK PORTION, FURTHER CONTINUING THE WINDING OF SAID STRANDS OVER THE TOP SURFACE OF SAID JIG TOWARDS SAID FIRST MENTIONED JIG END SURFACE TO FORM SAID NOSE PORTION, SURING THE WOUND STRANDS BY THE APPLICATION OF HEAT TO CONSOLIDATE THE STRANDS IN CONFORMITY WITH THE CONTOUR OF SAID JIG, AND REMOVING THE CURED ANCHOR FROM THE JIG.
Claim 2
Independent Claim
185 words
A METHOD OF FORMING A RAIL ANCHOR OF PLASTIC MATERIAL INCLUDING A LONGITUDINAL BASE, A NOSE DISPOSED ABOVE SAID BASE AND AN UPSTANDING HOOK PORTION; COMPRISING THE STEPS OF: DEPOSITING STRANDS OF GLASS-FILLED PLASTIC RESIN AROUND A JIG HAVING TOP, BOTTOM AND TWO END SURFACES PROVIDING AN OUTER CONTOUR APPROXIMATELY THE DESIRED INNER CONTOUR OF THE FORMED ANCHOR, SAID STRANDS DEPOSITED BY WINDING FROM A POINT ADJACENT ONE END SURFACE OF SAID JIG IN A FIRST DIRECTION ACROSS THE BOTTOM OF SAID JIG TO FROM SAID RAIL ANCHOR BASE, CONTAINING THE WINDING BY LOOPING SAID STRANDS AROUND THE OTHER OF SAID JIG END SURFACES IN AN UPWARD DIRECTION NORMAL TO SAID FIRST DIRECTION AND IN A FIGURE-8 PATTERN PROVIDING CROSING OF THE STRANDS TO FORM SAID RAIL ANCHOR HOOK PORTION, FURTHER CONTINUING THE WINDING OF SAID STRANDS OVER THE TOP SURFACE OF SAID JIG TOWARDS SAID FIRST MENTIONED JIG END SURFACE TO FORM SAID NOSE PORTION, SURING THE WOUND STRANDS BY THE APPLICATION OF HEAT TO CONSOLIDATE THE STRANDS IN CONFORMITY WITH THE CONTOUR OF SAID JIG, AND REMOVING THE CURED ANCHOR FROM THE JIG.
References Cited (Backward Citations)
CA625797A
Cited
US2648098A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-12-05 | 1970-06-06 | 1970-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-05 | 1974-06-06 | 1974-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-05 | 1978-06-06 | 1978-12-06 | $7700.00 | Window Closed / Lapsed |