Patent US4101781A successfully refreshed from Google Patents.
Patent US3796985A successfully refreshed from Google Patents.
US3796985A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Locking device
Assignee: Individual
•
Filing: 1972-03-13
•
Granted: 1974-03-12
•
Expires: 1992-03-13
Abstract
Abstract The locking device is used with plug-in members, such as electric plug connections. A threaded spindle is swingable from a frame which supports the plug-in members. A control grip and an internally threaded member move back and forth on the spindle depending on their direction of rotation on the spindle. A tapered ring on the spindle is engageable with a hook on one of the plug in members. When the control grip is tightened the ring presses the hooked member into insertion. When the control grip is loosened the ring can be released from the hook. The control grip is coupled to the internally threaded member by Hirth type serrations, spring loaded by a donut shaped spring cushion which allows the control grip to be displaced from the internally threaded member when a predetermined plug-in force is exceeded.
Inventors
- 👤 E Weber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 07:36
CPC Classifications
H; H05; H05K; H05K7/00; H05K7/14; H05K7/1401; H05K7/1411; H05K7/1412; H01; H01R; H01R13/00; H01R13/62; H01R13/621; H01R13/6215
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
170 words
A locking device for connecting plug-insert elements comprising a frame which supports these elements having a rotational axis on the frame, a threaded spindle having one end which can be swung around the rotational axis, a hook attached to one plug-insert element, a control grip rotatable on the spindle which moves back and forth along the spindle depending on the direction of rotation thereon, a tapered ring surrounding the spindle and coaxial there-with, possessing an inner chamfer, which can be engaged with the hook, which by rotating the control grip in a tightening direction brings pressure to bear on the hook, and which can be removed from the hook by rotating the control grip in the loosening direction once the control grip has been sufficiently loosened, an internally threaded member rotatable on the spindle and a spring loaded locking joint which couples together the control grip to the internally threaded member and which is capable of limiting the force in one direction whEn a predetermined plug insertion force is exceeded.
Claim 2
Dependent Claim
170 words
A locking device for connecting plug-insert elements comprising a frame which supports these elements having a rotational axis on the frame, a threaded spindle having one end which can be swung around the rotational axis, a hook attached to one plug-insert element, a control grip rotatable on the spindle which moves back and forth along the spindle depending on the direction of rotation thereon, a tapered ring surrounding the spindle and coaxial there-with, possessing an inner chamfer, which can be engaged with the hook, which by rotating the control grip in a tightening direction brings pressure to bear on the hook, and which can be removed from the hook by rotating the control grip in the loosening direction once the control grip has been sufficiently loosened, an internally threaded member rotatable on the spindle and a spring loaded locking joint which couples together the control grip to the internally threaded member and which is capable of limiting the force in one direction whEn a predetermined plug insertion force is exceeded.
Claim 3
Dependent Claim
31 words
A locking device according to Claim 1, in which the control grip and the internally threaded member possess opposed gear-tooth surfaces which serve in the nature of overload release clutch means.
Claim 4
Dependent Claim
48 words
A locking device according to claim 2 in which the spring-loading device is a donut-shaped spring cushion made from worked and forged metal wires, the spring cushion being supported and the Hirth-type serrations being subjected to pressure by means of the internally threaded member and the control grip.
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) | 1977-03-11 | 1977-09-10 | 1978-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-03-11 | 1981-09-10 | 1982-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-03-11 | 1985-09-10 | 1986-03-12 | $7700.00 | Window Closed / Lapsed |