Patent US3273918A successfully refreshed from Google Patents.
US3273918A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sealed coupling
Assignee: Individual
•
Filing: 1964-04-20
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Granted: 1966-09-20
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Expires: 1984-04-20
Abstract
No abstract record available.
Inventors
- 👤 Philip H Legarra
- 👤 Elton C Hallett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 06:14
CPC Classifications
F; F16; F16L; F16L17/00; F16L17/06; F16L17/08; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49016
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
150 words
A SEALED COUPLING ARRANGEMENT COMPRISING A FIRST MEMBER TO BE CONNECTED, A SECOND MEMBER TO BE CONNECTED, SAID MEMBERS HAVING BORES THEREIN AND HAVING INTERENGAGING SURFACES FOR INTERCONNECTING SAID BORES, AN AXIALLY COMPRESSIBLE SEALING MEMBER, SAID SEALING MEMBER HAVING A FIRST SURFACE SEALINGLY ENGAGING SAID FIRST MEMBER ADJACENT THE BORE THEREOF AND A SECOND SURFACE SEALINGLY ENGAGING SAID SECOND MEMBER ADJACENT THE BORE OF SAID SECOND MEMBER, SAID FIRST MEMBER INCLUDING AN ABUTMENT SAID SEALING MEMBER ENGAGING SAID ABUTMENT INWARDLY OF SAID SECOND SURFACE THEREOF, AND BEING RELATIVELY RIGID BETWEEN SAID SECOND SURFACE AND SAID ABUTMENT FOR ACTING AS A STOP UPON SAID INTERENGAGEMENT OF SAID FIRST AND SECOND MEMBERS, AND MEANS HOLDING SAID FIRST AND SECOND MEMBERS TOGETHER, WITH THE MOVEMENT OF SAID FIRST AND SECOND MEMBERS TOWARD EACH OTHER LIMITED BY SAID ENGAGEMENT OF SAID SECOND SURFACE OF SAID SEALING MEMBER AND SAID ABUTMENT OF SAID FIRST MEMBER.
Claim 2
Dependent Claim
150 words
A SEALED COUPLING ARRANGEMENT COMPRISING A FIRST MEMBER TO BE CONNECTED, A SECOND MEMBER TO BE CONNECTED, SAID MEMBERS HAVING BORES THEREIN AND HAVING INTERENGAGING SURFACES FOR INTERCONNECTING SAID BORES, AN AXIALLY COMPRESSIBLE SEALING MEMBER, SAID SEALING MEMBER HAVING A FIRST SURFACE SEALINGLY ENGAGING SAID FIRST MEMBER ADJACENT THE BORE THEREOF AND A SECOND SURFACE SEALINGLY ENGAGING SAID SECOND MEMBER ADJACENT THE BORE OF SAID SECOND MEMBER, SAID FIRST MEMBER INCLUDING AN ABUTMENT SAID SEALING MEMBER ENGAGING SAID ABUTMENT INWARDLY OF SAID SECOND SURFACE THEREOF, AND BEING RELATIVELY RIGID BETWEEN SAID SECOND SURFACE AND SAID ABUTMENT FOR ACTING AS A STOP UPON SAID INTERENGAGEMENT OF SAID FIRST AND SECOND MEMBERS, AND MEANS HOLDING SAID FIRST AND SECOND MEMBERS TOGETHER, WITH THE MOVEMENT OF SAID FIRST AND SECOND MEMBERS TOWARD EACH OTHER LIMITED BY SAID ENGAGEMENT OF SAID SECOND SURFACE OF SAID SEALING MEMBER AND SAID ABUTMENT OF SAID FIRST MEMBER.
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) | 1969-09-19 | 1970-03-21 | 1970-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-19 | 1974-03-21 | 1974-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-19 | 1978-03-21 | 1978-09-20 | $7700.00 | Window Closed / Lapsed |