US3860322A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sealed electrical connector
Assignee: Cooper Power Systems LLC
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Filing: 1974-05-03
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Granted: 1975-01-14
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Expires: 1994-05-03
Abstract
Abstract A load break electrical connector including a plug and a bushing, the plug having an electrically conductive probe and an arc-extinguishing follower mounted on the end of the probe, the bushing having an electrically conductive tubular contact and an arc-extinguishing sleeve positioned at the end of the tubular contact, a first seal mounted on the arc follower and a second seal positioned adjacent the end of the tubular contact, the seals being positioned to respectively sealingly engage the inner surface of the arc-extinguishing sleeve and the outer surface of the arc-extinguishing follower.
Inventors
- 👤 Edward L Sankey
- 👤 Thomas J Holtgrieve
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 03:14
CPC Classifications
H; H01; H01R; H01R13/00; H01R13/46; H01R13/53
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
113 words
A high voltage load break plug for a bushing having an electrically conductive contact and an arc extinguishing sleeve on the end of the contact, said plug having an electrically conductive probe and an arc-extinguishing follower on the end of the probe, the improvement comprising, a resilient seal ring mounted on the follower and having an outer diameter equal to or greater than the inner diameter of the sleeve to sealingly engage the sleeve, said seal ring being located at the end of the follower remote from the probe so that the products of decomposition produced upon interruption are confined in the space between the follower and the sleeve and within the bushing.
Claim 2
Dependent Claim
113 words
A high voltage load break plug for a bushing having an electrically conductive contact and an arc extinguishing sleeve on the end of the contact, said plug having an electrically conductive probe and an arc-extinguishing follower on the end of the probe, the improvement comprising, a resilient seal ring mounted on the follower and having an outer diameter equal to or greater than the inner diameter of the sleeve to sealingly engage the sleeve, said seal ring being located at the end of the follower remote from the probe so that the products of decomposition produced upon interruption are confined in the space between the follower and the sleeve and within the bushing.
Claim 3
Dependent Claim
21 words
The plug according to claim 1 wherein said seal ring comprises a first O-ring seal on the end of the follower.
Claim 4
Dependent Claim
101 words
A high voltage load break bushing for a plug having an electrically conductive probe and an arc-extinguishing follower on the end of the probe, the bushing having an electrically conductive contact and an arc-extinguishing sleeve on the end of the contact, the improvement comprising, a resilient seal ring mounted within and adjacent to the open end of said sleeve to sealingly engage said follower upon interruption and having an inner diameter equal to or smaller than the outer diameter of the follower to confine the gases produced by the heat of the arc upon interrupton in the space within the bushing.
Claim 5
Dependent Claim
101 words
A high voltage load break bushing for a plug having an electrically conductive probe and an arc-extinguishing follower on the end of the probe, the bushing having an electrically conductive contact and an arc-extinguishing sleeve on the end of the contact, the improvement comprising, a resilient seal ring mounted within and adjacent to the open end of said sleeve to sealingly engage said follower upon interruption and having an inner diameter equal to or smaller than the outer diameter of the follower to confine the gases produced by the heat of the arc upon interrupton in the space within the bushing.
Claim 6
Dependent Claim
22 words
The bushing according to claim 3 wherein said seal ring comprises an elastomeric cylindrical sleeve on the inner surface of said sleeve.
Claim 7
Dependent Claim
21 words
The bushing according to claim 3 wherein said seal ring comprises an elastomeric material covering the inner surface of said sleeve.
Claim 8
Dependent Claim
13 words
The bushing according to claim 3 wherein said seal ring comprises an O-ring.
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) | 1978-01-13 | 1978-07-15 | 1979-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-01-13 | 1982-07-15 | 1983-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-01-13 | 1986-07-15 | 1987-01-14 | $7700.00 | Window Closed / Lapsed |