Patent US3074436A successfully refreshed from Google Patents.
US3074436A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pipeline batching pig
Assignee: Gulf Research and Development Co
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Filing: 1960-10-26
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Granted: 1963-01-22
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Expires: 1980-10-26
Abstract
No abstract record available.
Inventors
- 👤 Dean Howard J En
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 06:15
CPC Classifications
B; B08; B08B; B08B9/00; B08B9/02; B08B9/027; B08B9/04; B08B9/053; B08B9/055; B08B9/0552; B08B9/0554; F; F16; F16L; F16L2101/00; F16L2101/40; Y; Y10; Y10T; Y10T137/00; Y10T137/9682
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
90 words
A BATCHING PIG FOR A PIPELINE COMPRISING AT LEAST TWO SEALING MEMBERS ADAPTED TO FORM SLIDING SEALS AGAINST THE INTERIOR WALL OF THE PIPELINE WHEN INSERTED THEREIN, MEANS CONNECTING SAID SEALING MEMBERS INCLUDING AT LEAST ONE UNIVERSAL JOINT, RESILIENT MEANS COOPERATING WITH SAID CONNECTING MEANS URGING SAID SEALING MEMBERS INTO COAXIAL ALIGNMENT, AT LEAST ONE OF SAID SEALING MEMBERS BEING SPHEROIDAL IN SHAPE WITH ITS AXIS OF REVOLUTION PARALLEL TO THE AXIS JOINING SAID SEALING MEMBERS, AND RESTRICTED FLOW-CARRYING MEANS PROVIDING A HYDRAULIC BY-PASS FOR THE REARWARD TERMINAL SEALING MEMBER.
Claim 2
Dependent Claim
90 words
A BATCHING PIG FOR A PIPELINE COMPRISING AT LEAST TWO SEALING MEMBERS ADAPTED TO FORM SLIDING SEALS AGAINST THE INTERIOR WALL OF THE PIPELINE WHEN INSERTED THEREIN, MEANS CONNECTING SAID SEALING MEMBERS INCLUDING AT LEAST ONE UNIVERSAL JOINT, RESILIENT MEANS COOPERATING WITH SAID CONNECTING MEANS URGING SAID SEALING MEMBERS INTO COAXIAL ALIGNMENT, AT LEAST ONE OF SAID SEALING MEMBERS BEING SPHEROIDAL IN SHAPE WITH ITS AXIS OF REVOLUTION PARALLEL TO THE AXIS JOINING SAID SEALING MEMBERS, AND RESTRICTED FLOW-CARRYING MEANS PROVIDING A HYDRAULIC BY-PASS FOR THE REARWARD TERMINAL SEALING MEMBER.
References Cited (Backward Citations)
US971042A
Cited
US1966819A
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US2601614A
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US2796878A
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US2810143A
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US2951362A
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US3025118A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-01-21 | 1966-07-23 | 1967-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-21 | 1970-07-23 | 1971-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-21 | 1974-07-23 | 1975-01-22 | $7700.00 | Window Closed / Lapsed |