US3606393A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pipe connectors
Assignee: Vetco Inc
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Filing: 1969-09-05
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Granted: 1971-09-20
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Expires: 1989-09-05
Abstract
Abstract A MARINE RISER CONNECTOR FOR UNDERWATER WELL HEAD EQUIPMENT, THE RISER CONNECTOR HAVING A PIN MEMBER PROVIDED WITH A GROOVE FOR RECEIVING A RESILIENT LOCK RING CARRIED BY A BOX MEMBER. THE LOCK RING HAS OVERLAPPED ENDS AND IS CENTRALIZED IN A GROOVE IN THE BOX BY SPRING-LOADED CENTRALIZER PINS. THE LOCK RING IS ACTUATABLE INTO LOCKING ENGAGEMENT WITHIN THE GROOVE IN THE PIN BY ACTUATOR SCREWS HAVING LOCK RING ENGAGING PADS, AND LOCK PLATES ARE PROVIDED TO PREVENT ROTATION OF THE ACTUATOR SCREWS EXCEPT WHEN THEY ARE ENGAGED BY A DRIVING TOOL.
Inventors
- 👤 Carl F Huntsinger
- 👤 Fritz R Huntsinger Jr
- 👤 Joseph H Hynes
- 👤 George B Bulgin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:09
CPC Classifications
E; E21; E21B; E21B17/00; E21B17/02; E21B17/08; E21B17/085; F; F16; F16L; F16L25/00; F16L25/06; F16L25/065; F02; F02B; F02B3/00; F02B3/06; Y; Y10; Y10S; Y10S411/00; Y10S411/955; Y10S411/974
Claims Analysis
Total Claims: 0
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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) | 1974-09-19 | 1975-03-21 | 1975-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-19 | 1979-03-21 | 1979-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-19 | 1983-03-21 | 1983-09-20 | $7700.00 | Window Closed / Lapsed |