US3686603A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical connector
Assignee: Westinghouse Electric Corp
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Filing: 1969-04-30
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Granted: 1972-08-22
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Expires: 1989-04-30
Abstract
Abstract A fusible plug-in type electrical connector for interconnecting a shielded electrical conductor with a load circuit. The removable plug-in portion of the connector includes means for reducing the electrical stress adjacent the electrodes of the fuse, one of which is still at line potential after the fuse has interrupted the circuit.
Inventors
- 👤 Arthur M Lockie
- 👤 Merrill G Leonard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 06:13
CPC Classifications
H; H02; H02G; H02G15/00; H02G15/02; H02G15/06; H02G15/064; H01; H01H; H01H85/00; H01H85/02; H01H85/04; H01H85/041; H01H85/042; H01R; H01R13/00; H01R13/66; H01R13/68; H01H2085/0225
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
301 words
An electrical connector comprising: a plug-in member adapted for connection to a shielded electrical conductor, said plug-in member including an insulating body portion, first electrical shielding means surrounding said insulating body portion adapted to contact the shield of the shielded electrical conductor, first and second electrical contacts and a terminal, said insulating body portion defining a tubular chamber, with said first and second electrical contacts being disposed in spaced relation therein, said first electrical contact being adapted for connection to the shielded electrical conductor, said terminal being connected to said second electrical contact, and adapted to releasably engage a complementary terminal, a fuse having an insulating body member, first and second electrodes, and a fusible element connected between its first and second electrodes, said fuse being removably disposed within the chamber of said insulating body portion with its first and second electrodes in contact with said first and second electrical contacts respectively, and with its first and second electrodes spaced from the wall of the tubular chamber of said insulating body portion, second electrical shielding means disposed within the chamber of said plug-in member, in contact with the annular inner surface thereof, starting adjacent to said first electrical contact and extending toward said second electrical contact for a predetermined distance, to surround and shield the first electrode of said fuse, said second electrical shielding means having a voltage dependent resistivity selected to prevent corona discharges from occurring between the first and second electrodes of said fuse when the fusible element melts and interrupts the circuit between the first and second electrodes, and a resilient liner member disposed within the chamber of the plug-in member, having an aperture sized to snugly but removably receive the fuse, and disposed adjacent to the first electrical contact, between the second shielding means and the fuse.
Claim 2
Dependent Claim
301 words
An electrical connector comprising: a plug-in member adapted for connection to a shielded electrical conductor, said plug-in member including an insulating body portion, first electrical shielding means surrounding said insulating body portion adapted to contact the shield of the shielded electrical conductor, first and second electrical contacts and a terminal, said insulating body portion defining a tubular chamber, with said first and second electrical contacts being disposed in spaced relation therein, said first electrical contact being adapted for connection to the shielded electrical conductor, said terminal being connected to said second electrical contact, and adapted to releasably engage a complementary terminal, a fuse having an insulating body member, first and second electrodes, and a fusible element connected between its first and second electrodes, said fuse being removably disposed within the chamber of said insulating body portion with its first and second electrodes in contact with said first and second electrical contacts respectively, and with its first and second electrodes spaced from the wall of the tubular chamber of said insulating body portion, second electrical shielding means disposed within the chamber of said plug-in member, in contact with the annular inner surface thereof, starting adjacent to said first electrical contact and extending toward said second electrical contact for a predetermined distance, to surround and shield the first electrode of said fuse, said second electrical shielding means having a voltage dependent resistivity selected to prevent corona discharges from occurring between the first and second electrodes of said fuse when the fusible element melts and interrupts the circuit between the first and second electrodes, and a resilient liner member disposed within the chamber of the plug-in member, having an aperture sized to snugly but removably receive the fuse, and disposed adjacent to the first electrical contact, between the second shielding means and the fuse.
Claim 3
Dependent Claim
208 words
An electrical connector comprising: a plug-in member adapted for connection to a shielded electrical conductor, said plug-in member including an insulating body portion, first electrical shielding means surrounding said insulating body portion adapted to contact the shield of the shielded electrical conductor, first and second electrical contacts, and a terminal, said insulating body portion defining a tubular chamber, with said first and second electrical contacts being disposed in spaced relation therein, said first electrical contact being adapted for connection to the shielded electrical conductor, said terminal being connected to said second electrical contact and adapted to to releasably engage a complementary terminal, and a fuse having an insulating body member and first and second electrodes, said fuse being disposed within the chamber of said plug-in member, with its first and second electrodes in contact with the first and second electrical contacts, respectively, the first electrical contact of said fuse having a diameter smaller than the outside diameter of its insulating body member, with said first electrical contact having a diameter which is substantially the same as that of the first electrode, to provide a substantial clearance between the first electrode and first electrical contact, and the surrounding chamber defined by the insulating body portion of said plug-in member.
Claim 4
Dependent Claim
208 words
An electrical connector comprising: a plug-in member adapted for connection to a shielded electrical conductor, said plug-in member including an insulating body portion, first electrical shielding means surrounding said insulating body portion adapted to contact the shield of the shielded electrical conductor, first and second electrical contacts, and a terminal, said insulating body portion defining a tubular chamber, with said first and second electrical contacts being disposed in spaced relation therein, said first electrical contact being adapted for connection to the shielded electrical conductor, said terminal being connected to said second electrical contact and adapted to to releasably engage a complementary terminal, and a fuse having an insulating body member and first and second electrodes, said fuse being disposed within the chamber of said plug-in member, with its first and second electrodes in contact with the first and second electrical contacts, respectively, the first electrical contact of said fuse having a diameter smaller than the outside diameter of its insulating body member, with said first electrical contact having a diameter which is substantially the same as that of the first electrode, to provide a substantial clearance between the first electrode and first electrical contact, and the surrounding chamber defined by the insulating body portion of said plug-in member.
Claim 5
Dependent Claim
54 words
The electrical connector of claim 2 including second electrical shielding means disposed within the chamber of said plug-in member, in contact with the inner annular surface thereof, starting adjacent the first electrical contact and extending towards the second electrical contact for a predetermined dimension, to surround and shield the first electrode of the fuse.
Claim 6
Dependent Claim
18 words
The electrical connector of claim 2 wherein the second electrical shielding means has a predetermined voltage dependent resIstivity.
Claim 7
Dependent Claim
20 words
The electrical connector of claim 2 wherein the second electrical shielding means is electrically connected to the first electrical contact.
Claim 8
Dependent Claim
37 words
The electrical connector of claim 2 including a resilient liner member disposed within the chamber of the plug-in member, adjacent the first electrical contact, between the insulating body member of the fuse and the second shielding means.
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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) | 1975-08-22 | 1976-02-21 | 1976-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-22 | 1980-02-21 | 1980-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-22 | 1984-02-21 | 1984-08-22 | $7700.00 | Window Closed / Lapsed |