US3135414A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plug
Assignee: Individual
•
Filing: 1962-06-18
•
Granted: 1964-06-02
•
Expires: 1982-06-18
Abstract
No abstract record available.
Inventors
- 👤 Ii Leighton Lee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:09
CPC Classifications
F; F16; F16J; F16J13/00; F16J13/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
224 words
A SEALING PLUG ASSEMBLY FOR HERMETICALLY SEALING UNTHREADED OPENINGS IN METAL PARTS HAVING RELATIVELY THIN FRAGILE WALLS BY RADIAL EXPANSION, WHILE EXERTING ONLY RADIAL FORCE IN SUCH EXPANSION, THE PLUG ASSEMBLY COMPRISING: (A) A PLUG OF GENERALLY CUP-SHAPED WITH A CYLINDRICAL OUTER SURFACE OF A DIAMETER TO FIT EASILY IN AN UNTHREADED HOLE IN A PART, (B) A PLURALITY OF SEPARATE SPACED-APART NON-INTERSECTING ANNULAR GROOVES ON THE OUTSIDE OF THE PLUG AND SEPARATE SPACED-APART ANNULAR SEALING LANDS BETWEEN THE GROOVES, (C) A TAPERED INSIDE SURFACE WITHIN THE CUP-SHAPED PLUG IN THE SAME AXIAL PORTION THEREOF AS THE GROVES AND LANDS ENCOMPASS, (D) A THREADED BLIND HOLE IN THE INSIDE OF THE CLOSED END OF THE PLUG BELOW THE TAPERED INNER SURFACE, (E) A SEPARATE HOLLOW, GENERALLY CYLINDRICAL-SHAPED EXPANDER PIN, (F) A TAPERED OUTER SURFACE ON THE EXPANDER PIN FOR COOPERATING WITH THE TAPERED INNER SURFACE ON THE PLUG TO ACCOMPLISH RADIAL EXPANSION OF THE PLUG FOR SEALING UPON RELATIVE AXIAL MOVEMENT OF THE PIN AND PLUG, (G) AN INNER SURFACE OF THE HOLLOW EXPANDER PIN HAVING A DIAMETER LARGER THAN THE DIAMETER OF THE BLIND HOLE TO THEREBY ALLOW INSTALLATION OF THE PLUG BY RELATIVE AXIAL MOVEMENT OF THE PLUG AND EXPANDER PIN WHILE HOLDING THE PLUG BY THE TAPPED BLIND HOLE TO CANCEL OPPOSING AXIAL FORCES AND ACCOMPLISH SEALING BY RADIAL FORCE ONLY.
Claim 2
Dependent Claim
224 words
A SEALING PLUG ASSEMBLY FOR HERMETICALLY SEALING UNTHREADED OPENINGS IN METAL PARTS HAVING RELATIVELY THIN FRAGILE WALLS BY RADIAL EXPANSION, WHILE EXERTING ONLY RADIAL FORCE IN SUCH EXPANSION, THE PLUG ASSEMBLY COMPRISING: (A) A PLUG OF GENERALLY CUP-SHAPED WITH A CYLINDRICAL OUTER SURFACE OF A DIAMETER TO FIT EASILY IN AN UNTHREADED HOLE IN A PART, (B) A PLURALITY OF SEPARATE SPACED-APART NON-INTERSECTING ANNULAR GROOVES ON THE OUTSIDE OF THE PLUG AND SEPARATE SPACED-APART ANNULAR SEALING LANDS BETWEEN THE GROOVES, (C) A TAPERED INSIDE SURFACE WITHIN THE CUP-SHAPED PLUG IN THE SAME AXIAL PORTION THEREOF AS THE GROVES AND LANDS ENCOMPASS, (D) A THREADED BLIND HOLE IN THE INSIDE OF THE CLOSED END OF THE PLUG BELOW THE TAPERED INNER SURFACE, (E) A SEPARATE HOLLOW, GENERALLY CYLINDRICAL-SHAPED EXPANDER PIN, (F) A TAPERED OUTER SURFACE ON THE EXPANDER PIN FOR COOPERATING WITH THE TAPERED INNER SURFACE ON THE PLUG TO ACCOMPLISH RADIAL EXPANSION OF THE PLUG FOR SEALING UPON RELATIVE AXIAL MOVEMENT OF THE PIN AND PLUG, (G) AN INNER SURFACE OF THE HOLLOW EXPANDER PIN HAVING A DIAMETER LARGER THAN THE DIAMETER OF THE BLIND HOLE TO THEREBY ALLOW INSTALLATION OF THE PLUG BY RELATIVE AXIAL MOVEMENT OF THE PLUG AND EXPANDER PIN WHILE HOLDING THE PLUG BY THE TAPPED BLIND HOLE TO CANCEL OPPOSING AXIAL FORCES AND ACCOMPLISH SEALING BY RADIAL FORCE ONLY.
References Cited (Backward Citations)
US1335117A
Cited
US2821323A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-06-02 | 1967-12-02 | 1968-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-02 | 1971-12-02 | 1972-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-02 | 1975-12-02 | 1976-06-02 | $7700.00 | Window Closed / Lapsed |