US3087641A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: Individual
•
Filing: 1961-02-16
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Granted: 1963-04-30
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Expires: 1981-02-16
Abstract
No abstract record available.
Inventors
- 👤 Louis J Millard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:22
CPC Classifications
F; F16; F16L; F16L55/00; F16L55/10; F16L55/12; F16L55/128; F16L55/132; B; B65; B65D; B65D39/00; B65D39/12; E; E05; E05D; E05D11/00; E05D11/0054; E05Y; E05Y2999/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
192 words
A REMOVABLE SEALING DEVICE FOR A CONDUIT COMPRISING A TOP CAP MEMBER HAVING A GASKET FACE, A TUBULAR MEMBER DISPOSED ON SAID TOP CAP MEMBER HAVING A RADIALLY OUTWARDLY FLARED PORTION, A GASKET DISPOSED BETWEEN SAID FACE AND SAID FLARED PORTION ADAPTED TO ENGAGE THE END OF SAID CONDUIT, A FIRST RESILIENT SEAL SLIDINGLY DISPOSED ON SAID TUBULAR MEMBER, A SECOND RESILIENT SEAL HAVING A RECESSED MID-PORTION SLIDINGLY DISPOSED ON SAID TUBULAR MEMBER, SAID FIRST AND SECOND SEALS BEING ADAPTED TO ENGAGE THE INNER SURFACE OF SAID CONDUIT WHEN IN A RADIALLY EXPANDED POSITION, A COLLAR MEMBER DISPOSED BETWEEN SAID FIRST AND SECOND SEALS, ACTUATION MEANS INCLUDING A BOTTOM CAP SLIDINGLY DISPOSED ON SAID TUBULAR MEMBER ADJACENT SAID SECOND SEAL AND A PULL ROD EXTENDING THROUGH SAID TOP CAP MEMBER OPERATIVELY CONNECTED TO SAID BOTTOM CAP FOR RADIALLY EXPANDING SAID FIRST SEAL TO ENGAGE THE INNER SURFACE OF SAID CONDUIT AND SAID GASKET AND FOR RADIALLY EXPANDING SAID SECOND SEAL TO ENGAGE THE INNER SURFACE OF SAID CONDUIT, AND SPRING MEANS DISPOSED BETWEEN SAID TOP CAP MEMBER AND SAID BOTTOM CAP FOR RETURNING SAID FIRST AND SECOND SEALS TO RADIALLY UNEXPANDED POSITIONS.
Claim 2
Dependent Claim
192 words
A REMOVABLE SEALING DEVICE FOR A CONDUIT COMPRISING A TOP CAP MEMBER HAVING A GASKET FACE, A TUBULAR MEMBER DISPOSED ON SAID TOP CAP MEMBER HAVING A RADIALLY OUTWARDLY FLARED PORTION, A GASKET DISPOSED BETWEEN SAID FACE AND SAID FLARED PORTION ADAPTED TO ENGAGE THE END OF SAID CONDUIT, A FIRST RESILIENT SEAL SLIDINGLY DISPOSED ON SAID TUBULAR MEMBER, A SECOND RESILIENT SEAL HAVING A RECESSED MID-PORTION SLIDINGLY DISPOSED ON SAID TUBULAR MEMBER, SAID FIRST AND SECOND SEALS BEING ADAPTED TO ENGAGE THE INNER SURFACE OF SAID CONDUIT WHEN IN A RADIALLY EXPANDED POSITION, A COLLAR MEMBER DISPOSED BETWEEN SAID FIRST AND SECOND SEALS, ACTUATION MEANS INCLUDING A BOTTOM CAP SLIDINGLY DISPOSED ON SAID TUBULAR MEMBER ADJACENT SAID SECOND SEAL AND A PULL ROD EXTENDING THROUGH SAID TOP CAP MEMBER OPERATIVELY CONNECTED TO SAID BOTTOM CAP FOR RADIALLY EXPANDING SAID FIRST SEAL TO ENGAGE THE INNER SURFACE OF SAID CONDUIT AND SAID GASKET AND FOR RADIALLY EXPANDING SAID SECOND SEAL TO ENGAGE THE INNER SURFACE OF SAID CONDUIT, AND SPRING MEANS DISPOSED BETWEEN SAID TOP CAP MEMBER AND SAID BOTTOM CAP FOR RETURNING SAID FIRST AND SECOND SEALS TO RADIALLY UNEXPANDED POSITIONS.
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) | 1966-04-29 | 1966-10-29 | 1967-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-29 | 1970-10-29 | 1971-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-29 | 1974-10-29 | 1975-04-30 | $7700.00 | Window Closed / Lapsed |