US3075358A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cap for concrete pilings
Assignee: STERLING STEEL CASTING CO
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Filing: 1959-07-31
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Granted: 1963-01-29
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Expires: 1979-07-31
Abstract
No abstract record available.
Inventors
- 👤 August E Becker
- 👤 Willeford Sam
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 07:50
CPC Classifications
E; E02; E02D; E02D13/00; E02D13/10; E02D5/00; E02D5/72
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
173 words
A CAP FOR TUBING HAVING HELICAL CONVOLUTED GROOVES ON THE INNER PERIPHERY OF SAID TUBING, SAID CAP COMPRISING A FLAT BASE, A VERTICAL CIRCULARLY SHAPED RIM ATTACHED TO SAID BASE AND DEFINING A MARGINAL BORDER BETWEEN THE RIM AND THE PERIPHERY OF SAID BASE AND A PLURALITY OF BEADS FASTENED TO SAID RIM AND THE MARGIN OF THE BASE AT THE JUNCTURE OF THE RIM AND THE MARGIN OF SAID BASE, SAID BEADS EXTENDING FROM THE BASE VERTICALLY UPON THE EXTERIOR OF THE RIM TO SUBSTANTIALLY THE TOP THEREOF AND SAID BEADS HAVING A BULBOUS CONFIGURATION TAPERING FROM A LARGEST DIMENSION ADJACENT SAID BASE TO A SMALLEST DIMENSION ADJACENT THE UPPER EDGE OF SAID RIM AND THE LEADING SURFACE OF EACH BEAD HAVING A RELATIVELY STEEPER SLOPE THAN THE TRAILING SURFACE, WHEREBY SAID CAP MAY BE SCREWED INTO TIGHT FRICTIONAL ENGAGEMENT WITH AN END OF THE TUBING WITH EACH BEAD MATING WITH AN INDIVIDUAL GROOVE ON A TRAILING SURFACE AND FALLING GENTLY AWAY FROM MATING RELATION WITH THE GROOVE ON A LEADING SURFACE.
Claim 2
Dependent Claim
173 words
A CAP FOR TUBING HAVING HELICAL CONVOLUTED GROOVES ON THE INNER PERIPHERY OF SAID TUBING, SAID CAP COMPRISING A FLAT BASE, A VERTICAL CIRCULARLY SHAPED RIM ATTACHED TO SAID BASE AND DEFINING A MARGINAL BORDER BETWEEN THE RIM AND THE PERIPHERY OF SAID BASE AND A PLURALITY OF BEADS FASTENED TO SAID RIM AND THE MARGIN OF THE BASE AT THE JUNCTURE OF THE RIM AND THE MARGIN OF SAID BASE, SAID BEADS EXTENDING FROM THE BASE VERTICALLY UPON THE EXTERIOR OF THE RIM TO SUBSTANTIALLY THE TOP THEREOF AND SAID BEADS HAVING A BULBOUS CONFIGURATION TAPERING FROM A LARGEST DIMENSION ADJACENT SAID BASE TO A SMALLEST DIMENSION ADJACENT THE UPPER EDGE OF SAID RIM AND THE LEADING SURFACE OF EACH BEAD HAVING A RELATIVELY STEEPER SLOPE THAN THE TRAILING SURFACE, WHEREBY SAID CAP MAY BE SCREWED INTO TIGHT FRICTIONAL ENGAGEMENT WITH AN END OF THE TUBING WITH EACH BEAD MATING WITH AN INDIVIDUAL GROOVE ON A TRAILING SURFACE AND FALLING GENTLY AWAY FROM MATING RELATION WITH THE GROOVE ON A LEADING SURFACE.
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) | 1966-01-28 | 1966-07-30 | 1967-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-28 | 1970-07-30 | 1971-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-28 | 1974-07-30 | 1975-01-29 | $7700.00 | Window Closed / Lapsed |