US3634798A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Distribution transformer
Assignee: Westinghouse Electric Corp
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Filing: 1970-03-06
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Granted: 1972-01-11
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Expires: 1990-03-06
Abstract
Abstract A distribution transformer having a core-coil assembly enclosed in a casing or tank with the core-coil assembly and other associated hardware, such as bushings, partially supported from the top of the casing or tank and partially supported from the bottom of the casing or tank by a foamed resin cushion positioned in the casing or tank and resting on the bottom of the casing or tank.
Inventors
- 👤 John J Astleford Jr
- 👤 Dudley L Galloway
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:12
CPC Classifications
H; H01; H01F; H01F27/00; H01F27/02
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
108 words
A transformer comprising a casing having a bottom portion, a top portion, and an intermediate body portion, a core-coil assembly attached to said top portion and positioned in said body portion of said casing a resilient resin cushion in said casing and resting on the bottom portion of said casing, said resilient resin cushion being located between the bottom portion of said casing and the bottom portion of said core and extending along side portions of said core, the weight of said core-coil being partially suspended from said top portion of said casing and partially supported from said bottom portion of said casing through said resilient resin cushion.
Claim 2
Dependent Claim
108 words
A transformer comprising a casing having a bottom portion, a top portion, and an intermediate body portion, a core-coil assembly attached to said top portion and positioned in said body portion of said casing a resilient resin cushion in said casing and resting on the bottom portion of said casing, said resilient resin cushion being located between the bottom portion of said casing and the bottom portion of said core and extending along side portions of said core, the weight of said core-coil being partially suspended from said top portion of said casing and partially supported from said bottom portion of said casing through said resilient resin cushion.
Claim 3
Dependent Claim
23 words
The transformer of claim 1 wherein said resin cushion extends along sides of said core to dampen lateral movement of said core-coil assembly.
Claim 4
Dependent Claim
12 words
The transformer of claim 1 wherein said resin cushion comprises polyether urethane.
Claim 5
Dependent Claim
14 words
The transformer of claim 1 wherein said resin cushion is made from foamed resin.
Claim 6
Dependent Claim
12 words
The transformer of claim 1 wherein said resin cushion has open pores.
Claim 7
Dependent Claim
30 words
The transformer of claim 1 wherein said resin cushion extends along the sides of said coil at least substantially coextensive with said coil to dampen lateral movement of said coil.
Claim 8
Dependent Claim
102 words
A transformer comprising a casing having bottom and top portions connected to an intermediate body portion which is more flexible than said bottom and top portions, a core-coil assembly attached to said top portion and positioned in said body portion of said casing, said core-coil assembly resting on said bottom portion of said casing, resin members positioned in said casing between said core-coil assembly and the sides of said flexible body portion, said resin members having sides at least coextensive with the height of said core-coil assembly to prevent the sides of said flexible body member from collapsing against said core-coil assembly.
Claim 9
Dependent Claim
102 words
A transformer comprising a casing having bottom and top portions connected to an intermediate body portion which is more flexible than said bottom and top portions, a core-coil assembly attached to said top portion and positioned in said body portion of said casing, said core-coil assembly resting on said bottom portion of said casing, resin members positioned in said casing between said core-coil assembly and the sides of said flexible body portion, said resin members having sides at least coextensive with the height of said core-coil assembly to prevent the sides of said flexible body member from collapsing against said core-coil assembly.
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US2999222A
Cited
US3097346A
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US3173059A
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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) | 1975-01-10 | 1975-07-12 | 1976-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-10 | 1979-07-12 | 1980-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-10 | 1983-07-12 | 1984-01-11 | $7700.00 | Window Closed / Lapsed |