Patent US3107696A successfully refreshed from Google Patents.
US3107696A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plugging pig
Assignee: TD Williamson Inc
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Filing: 1960-05-02
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Granted: 1963-10-22
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Expires: 1980-05-02
Abstract
No abstract record available.
Inventors
- 👤 Nooy Burton Ver
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:26
CPC Classifications
F; F16; F16L; F16L55/00; F16L55/10; F16L55/12; F16L55/128; F16L55/1283
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
156 words
A PIPELIEN PACKER COMPRISING IN COMBINATION A BODY ADAPTED TO BE INSERTED INTO A PIPELINE; A PLURALITY OF ANNULAR SEALING CUPS DISPOSED AROUND THE BODY TO MAKE SEALING CONTACT WITH THE INNER WALL OF THE PIPELINE; A PLURALITY OF LATERALLY MOVABLE TOOTHED DOGS CARRIED BY THE BODY; A CONTROL SHAFT LONGITUDINALLY MOVABLE IN REGARD TO THE BODY CENTRALLY DISPOSED THROUGH THE BODY; A PLATE ATTACHED TO AN END OF THE CONTROL SHAFT; A COLLAPSIBLE BELLOWS SEALED BETWEEN SAID PLATE AND THE BODY, SAID BELLOWS BEING DISPOSED TO BE COLLAPSED BY PRESSURE FROM FLUID IN THE PIPELINE TO THEREBY URGE THE CONTROL SHAFT IN ONE LONGITUDINAL DIRECTION; A SPRING DISPOSED IN THE BODY TO URGE THE CONTROL SHAFT IN THE OPPOSITE DIRECTION; CAM MEANS, CARRIED BY THE CONTROL SHAFT, FOR URGING THE DOGS OUTWARD INTO LOCKING ENGAGEMENT WITH THE PIPELINE WALL; AND A GARTER STRING SPRING DISPOSED THROUGH OPENINGS IN ALL DOGS TO URGE ALL DOGS INWARD.
Claim 2
Dependent Claim
156 words
A PIPELIEN PACKER COMPRISING IN COMBINATION A BODY ADAPTED TO BE INSERTED INTO A PIPELINE; A PLURALITY OF ANNULAR SEALING CUPS DISPOSED AROUND THE BODY TO MAKE SEALING CONTACT WITH THE INNER WALL OF THE PIPELINE; A PLURALITY OF LATERALLY MOVABLE TOOTHED DOGS CARRIED BY THE BODY; A CONTROL SHAFT LONGITUDINALLY MOVABLE IN REGARD TO THE BODY CENTRALLY DISPOSED THROUGH THE BODY; A PLATE ATTACHED TO AN END OF THE CONTROL SHAFT; A COLLAPSIBLE BELLOWS SEALED BETWEEN SAID PLATE AND THE BODY, SAID BELLOWS BEING DISPOSED TO BE COLLAPSED BY PRESSURE FROM FLUID IN THE PIPELINE TO THEREBY URGE THE CONTROL SHAFT IN ONE LONGITUDINAL DIRECTION; A SPRING DISPOSED IN THE BODY TO URGE THE CONTROL SHAFT IN THE OPPOSITE DIRECTION; CAM MEANS, CARRIED BY THE CONTROL SHAFT, FOR URGING THE DOGS OUTWARD INTO LOCKING ENGAGEMENT WITH THE PIPELINE WALL; AND A GARTER STRING SPRING DISPOSED THROUGH OPENINGS IN ALL DOGS TO URGE ALL DOGS INWARD.
References Cited (Backward Citations)
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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) | 1966-10-21 | 1967-04-22 | 1967-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-10-21 | 1971-04-22 | 1971-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-10-21 | 1975-04-22 | 1975-10-22 | $7700.00 | Window Closed / Lapsed |