Patent US4531797A successfully refreshed from Google Patents.
US4531797A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical connection device with ready-access protected terminals
Assignee: Telemecanique SA
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Filing: 1983-02-14
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Granted: 1985-07-30
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Expires: 2003-02-14
Abstract
Abstract On at least one of two walls (16) (17) a terminal (7) housing (21) has a rib (44) respectively (45) that causes lateral distortion of a tubular housing (38) (39) which is part of a cover (3) so that the head (11) of a bolt of the terminal is gripped. This device, which is extremely simple to assemble, is recommended to make the terminal bolts so they cannot be lost and to hold them in an open position prior to wiring.
Inventors
- 👤 Claude Jullien
- 👤 Gerard Lerude
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 05:47
CPC Classifications
H; H01; H01R; H01R4/00; H01R4/28; H01R4/30; H01R4/301
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
195 words
An electrical connection device including a body with plural neighboring housings separated by at least one of partitions and walls parallel to the screwing axes of a number of connection terminals, each of which has an internal fixed conductor with a threaded opening and a set-screw equipped with a clamp that always remains under the head of a bolt; and a protective cover that hooks onto the body and opposite each bolt head has a coaxial cylindrical opening that is able to guide a screwing tool and that maintains the bolt in a pending position where a threaded tip is placed opposite the threaded opening, characterized in that the interior diameter of the cylindrical opening is greater than the diameter of the head of the bolt, the cylindrical opening being surrounded by a thin wall transversely distorted by an exterior surface of the wall working together with a rib carried by a said partition or wall so that the bolt head can be inserted in the cylindrical opening using gravity when the cover is not coupled to a body and can be gripped by the distorted wall when the cover is coupled to the body.
Claim 2
Dependent Claim
195 words
An electrical connection device including a body with plural neighboring housings separated by at least one of partitions and walls parallel to the screwing axes of a number of connection terminals, each of which has an internal fixed conductor with a threaded opening and a set-screw equipped with a clamp that always remains under the head of a bolt; and a protective cover that hooks onto the body and opposite each bolt head has a coaxial cylindrical opening that is able to guide a screwing tool and that maintains the bolt in a pending position where a threaded tip is placed opposite the threaded opening, characterized in that the interior diameter of the cylindrical opening is greater than the diameter of the head of the bolt, the cylindrical opening being surrounded by a thin wall transversely distorted by an exterior surface of the wall working together with a rib carried by a said partition or wall so that the bolt head can be inserted in the cylindrical opening using gravity when the cover is not coupled to a body and can be gripped by the distorted wall when the cover is coupled to the body.
Claim 3
Dependent Claim
44 words
Connection device according to claim 1, characterized in that an internal orifice of the cylindrical opening in the area of the head of the bolt has a curved contour that can be applied on a corresponding surface of the clamp oriented toward the head.
Claim 4
Dependent Claim
22 words
A connection device according to claim 1, characterized in that the wall of the cylindrical opening has slots that promote transverse distortion.
Claim 5
Dependent Claim
37 words
A connection device according to claim 1, characterized in that a small internal flange is placed inside the cylindrical opening having an internal diameter that is slightly greater than the diameter of the head of the bolt.
Claim 6
Dependent Claim
22 words
A connection device according to claim 2, characterized in that the wall of the cylindrical opening has slots that promote transverse distortion.
Claim 7
Dependent Claim
36 words
A connection device according to claim 2, characterized in that a small internal flange is placed inside the orifice having an internal diameter that is slightly greater than the diameter of the head of the bolt.
Claim 8
Dependent Claim
37 words
A connection device according to claim 3, characterized in that a small internal flange is placed inside the cylindrical opening having an internal diameter that is slightly greater than the diameter of the head of the bolt.
Claim 9
Dependent Claim
36 words
A connection device according to claim 5, characterized in that a small internal flange is placed inside the orifice having an internal diameter that is slightly greater than the diameter of the head of the bolt.
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) | 1988-07-29 | 1989-01-28 | 1989-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-07-29 | 1993-01-28 | 1993-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-07-29 | 1997-01-28 | 1997-07-30 | $7700.00 | Window Closed / Lapsed |