US3633141A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical bushing assembly
Assignee: Westinghouse Electric Corp
•
Filing: 1970-09-24
•
Granted: 1972-01-04
•
Expires: 1990-09-24
Abstract
Abstract An electrical bushing assembly including an insulating body member having an axial opening or bore, and first and second serially connected fuse members, each having a fuse tube with electrodes at the ends thereof, with the first and second fuse members being disposed in the axial bore of the insulating body member. A flexible insulating tubular member is disposed in a tight-fitting manner to cover the exposed electrodes at the intersection of the serially connected fuse members, and an insulating coating is disposed on the first fuse member, between the first fuse member and flexible insulating tubular member, such that the coating bridges the intersection of the fuse tube and electrode covered by the flexible insulating tubular member.
Inventors
- 👤 Donald J Ristuccia
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 07:23
CPC Classifications
H; H01; H01F; H01F27/00; H01F27/40; H01F27/402; H01B; H01B17/00; H01B17/005; H01F27/404; H01H; H01H85/00; H01H85/02; H01H85/04; H01H85/041; H01H85/042; H01H2085/0008; H01H2085/0225
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
201 words
An electrical bushing assembly, comprising: an insulating body member having first and second ends, an opening which extends between its ends, and terminal means mounted at said first end, first and second fuse members, each having an insulating tubular member, first and second electrodes mounted at opposite ends of the tubular member, and a fuse link connected between the first and second electrodes, through the opening in the tubular member, said first fuse member being disposed in the opening in said insulating body member with its first electrode in electrical contact with said terminal means, said second fuse member being at least partially disposed in the opening in said insulating body member, with its first electrode in electrical contact with the second electrode of said first fuse member, an insulating coating disposed on said first fuse member which contacts the outer surfaces of its insulating tubular member and second electrodes adjacent to and bridging their intersection, and a flexible insulating tubular member disposed in a tightfitting manner about the second electrode of the first fuse member, including said insulating coating, and about a portion of the end of said second fuse member adjacent the second electrode of said first fuse member.
Claim 2
Dependent Claim
201 words
An electrical bushing assembly, comprising: an insulating body member having first and second ends, an opening which extends between its ends, and terminal means mounted at said first end, first and second fuse members, each having an insulating tubular member, first and second electrodes mounted at opposite ends of the tubular member, and a fuse link connected between the first and second electrodes, through the opening in the tubular member, said first fuse member being disposed in the opening in said insulating body member with its first electrode in electrical contact with said terminal means, said second fuse member being at least partially disposed in the opening in said insulating body member, with its first electrode in electrical contact with the second electrode of said first fuse member, an insulating coating disposed on said first fuse member which contacts the outer surfaces of its insulating tubular member and second electrodes adjacent to and bridging their intersection, and a flexible insulating tubular member disposed in a tightfitting manner about the second electrode of the first fuse member, including said insulating coating, and about a portion of the end of said second fuse member adjacent the second electrode of said first fuse member.
Claim 3
Dependent Claim
29 words
The electrical bushing assembly of claim 1 wherein the dielectric constant of the insulating coating is at least equal to the dielectric constant of the flexible insulating tubular member.
Claim 4
Dependent Claim
44 words
The electrical bushing assembly of claim 1 wherein the first fuse member is a current-limiting fuse, including pulverulent arc-quenching means disposed to substantially fill the space between its fuse link and the inner walls of the insulating tubular portion of the first fuse member.
Claim 5
Dependent Claim
72 words
The electrical bushing assembly of claim 1 including a metallic casing for electrical apparatus having an opening therein, an insulating liquid dielectric disposed in said metallic casing, and means sealingly mounting the insulating body member through the opening in said casing, with the first end of said insulating Body member being outside said casing, and its second end, including the fuse link of the second fuse member, extending into said liquid dielectric.
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) | 1975-01-03 | 1975-07-05 | 1976-01-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-03 | 1979-07-05 | 1980-01-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-03 | 1983-07-05 | 1984-01-04 | $7700.00 | Window Closed / Lapsed |