US3102591A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Latch means
Assignee: Otis Engineering Corp
•
Filing: 1959-08-14
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Granted: 1963-09-03
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Expires: 1979-08-14
Abstract
No abstract record available.
Inventors
- 👤 George M Raulins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:05
CPC Classifications
E; E21; E21B; E21B33/00; E21B33/02; E21B33/03; E21B33/04; E21B33/047; E21B33/035; E21B33/037; E21B33/0375; Y; Y10; Y10S; Y10S285/00; Y10S285/92
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
152 words
A LATCH HEAD CONNECTABLE TO A PLURALITY OF FLOW CONDUCTORS FOR USE WITH WELL DEVICES HAVING LOCKING MEANS AND SEALING MEANS INCLUDIN: A BODY HAVING A PLURALITY OF LONGITUDINAL BORES, SAID BODY HAVING MEANS AT ONE END OF EACH OF SAID LONGITUDINAL BORES FOR RECEIVING AND CONNECTING A WELL FLOW CONDUCTOR THERETO WITH THE WELL FLOW CONDUCTORS OPENING INTO SAID BORES WHEN SAID LATCH HEAD IS CONNECTED TO THE FLOW CONDUCTORS, EACH OF SAID BORES BEING PROVIDED WITH INTERNAL GROOVE LATCH MEANS ENGAGEABLE BY LOCKING MEANS OF WELL DEVICES FOR RELEASABLY SECURING WELL DEVICES IN SAID BORE; AND AN INTERNAL ANNULAR SEAL SURFACE PROVIDED IN EACH OF SAID BORES ENGAGEABLE BY SEALING MEANS OF WELL DEVICES, SAID LATCH HEAD BODY BEING PROVIDED WITH AN EXTERNAL SHOULDER LATCH MEANS ENGAGEABLE BY RUNNING AND PULLING TOOLS WHEREBY THE LATCH HEAD AND THE FLOW CONDUCTORS CONNECTED THEREWITH MAY BE LOWERED AND RAISED BY SAID TOOLS.
Claim 2
Dependent Claim
152 words
A LATCH HEAD CONNECTABLE TO A PLURALITY OF FLOW CONDUCTORS FOR USE WITH WELL DEVICES HAVING LOCKING MEANS AND SEALING MEANS INCLUDIN: A BODY HAVING A PLURALITY OF LONGITUDINAL BORES, SAID BODY HAVING MEANS AT ONE END OF EACH OF SAID LONGITUDINAL BORES FOR RECEIVING AND CONNECTING A WELL FLOW CONDUCTOR THERETO WITH THE WELL FLOW CONDUCTORS OPENING INTO SAID BORES WHEN SAID LATCH HEAD IS CONNECTED TO THE FLOW CONDUCTORS, EACH OF SAID BORES BEING PROVIDED WITH INTERNAL GROOVE LATCH MEANS ENGAGEABLE BY LOCKING MEANS OF WELL DEVICES FOR RELEASABLY SECURING WELL DEVICES IN SAID BORE; AND AN INTERNAL ANNULAR SEAL SURFACE PROVIDED IN EACH OF SAID BORES ENGAGEABLE BY SEALING MEANS OF WELL DEVICES, SAID LATCH HEAD BODY BEING PROVIDED WITH AN EXTERNAL SHOULDER LATCH MEANS ENGAGEABLE BY RUNNING AND PULLING TOOLS WHEREBY THE LATCH HEAD AND THE FLOW CONDUCTORS CONNECTED THEREWITH MAY BE LOWERED AND RAISED BY SAID TOOLS.
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) | 1966-09-02 | 1967-03-04 | 1967-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-02 | 1971-03-04 | 1971-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-02 | 1975-03-04 | 1975-09-03 | $7700.00 | Window Closed / Lapsed |