US3702708A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Quick connect lugged coupling
Assignee: Locking Devices Inc
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Filing: 1970-08-28
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Granted: 1972-11-14
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Expires: 1990-08-28
Abstract
Abstract THE COUPLING INCLUDES MALE AND FEMALE ELEMENTS WHICH ARE SECURED TOGETHER BY MEANS OF LUGS ON THE MALE ELEMENT WHICH EXTEND THROUGH NOTCHES TO BE RECEIVED IN A GROOVE IN THE FEMALE ELEMENT. AN INTERIOR SURFACE OF THE GROOVE IS PROVIDED WITH A MOVABLE PROTUBERANCE AND A FIXED PROTUBERANCE WHICH ASSURE PROPER ROTATION OF THE ELEMENTS WHEN ENGAGED AND PROVIDE A STOP FOR THE LUGS. THE MOVABLE PROTUBERANCE IS SPRING-BIASED. THE LUGS HAVE CAMMING FACES ON THE LEADING EDGES TO CAM THE MOVABLE PROTUBERANCE OUT OF THE WAY WHEN THE ELEMENTS ARE TURNED IN ONE DIRECTION TO THEREBY PERMIT COUPLING OF THE DEVICE.
Inventors
- 👤 Donald B Moore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 03:56
CPC Classifications
F; F16; F16L; F16L37/00; F16L37/08; F16L37/10; F16L37/113
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-11-14 | 1976-05-15 | 1976-11-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-11-14 | 1980-05-15 | 1980-11-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-11-14 | 1984-05-15 | 1984-11-14 | $7700.00 | Window Closed / Lapsed |