US4009418A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Attachment of heat pipes to electrical apparatus
Assignee: General Electric Co
•
Filing: 1975-03-20
•
Granted: 1977-02-22
•
Expires: 1995-03-20
Abstract
Abstract An electrical apparatus, such as a distribution transformer, provided with heat pipes for cooling. The apparatus is provided with attachment wells, either extending into the cooling fluid of the apparatus or secured along the outside wall of the apparatus. Heat pipes are provided which fit into the attachment wells, with the evaporator section of the heat pipe mounted in the wells. The condenser section of the heat pipe extends away from the apparatus. Thermally conductive grease is placed in the wells to minimize the temperature drop from the wells to the evaporator section of the heat pipe.
Inventors
- 👤 Ronald E. Bennett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:59
CPC Classifications
H; H01; H01F; H01F27/00; H01F27/08; H01F27/10; H01F27/18; F; F28; F28D; F28D15/00; F28D15/02; F28D15/0275
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
57 words
An electrical apparatus including an enclosure with a heat generating unit mounted therein and immersed in a dielectric fluid; at least one attachment well secured to said enclosure, a heat pipe mounted in said attachment well the evaporator section of said heat pipe extending into said attachment well and a condenser section extending away from said enclosure.
Claim 2
Dependent Claim
57 words
An electrical apparatus including an enclosure with a heat generating unit mounted therein and immersed in a dielectric fluid; at least one attachment well secured to said enclosure, a heat pipe mounted in said attachment well the evaporator section of said heat pipe extending into said attachment well and a condenser section extending away from said enclosure.
Claim 3
Dependent Claim
80 words
An electrical apparatus including an enclosure with a heat generating unit mounted therein and immersed in a dielectric fluid; heat pipe attachment means secured to said enclosure; said heat pipe attachment means being in the form of attachment wells, said attachment wells being in the form of substantially tubular sections closed at one end, said tubular sections being formed of substantially the same shape as associated heat pipes so as to accept therein the evaporator section of a heat pipe.
Claim 4
Dependent Claim
80 words
An electrical apparatus including an enclosure with a heat generating unit mounted therein and immersed in a dielectric fluid; heat pipe attachment means secured to said enclosure; said heat pipe attachment means being in the form of attachment wells, said attachment wells being in the form of substantially tubular sections closed at one end, said tubular sections being formed of substantially the same shape as associated heat pipes so as to accept therein the evaporator section of a heat pipe.
Claim 5
Dependent Claim
31 words
An electrical apparatus as set forth in claim 2, in which the attachment well extends through the wall of said enclosure below the level of the dielectric fluid in the enclosure.
Claim 6
Dependent Claim
23 words
An electrical apparatus as set forth in claim 2, in which said attachment well is secured to the exterior wall of the enclosure.
References Cited (Backward Citations)
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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) | 1980-02-22 | 1980-08-23 | 1981-02-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-02-22 | 1984-08-23 | 1985-02-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-02-22 | 1988-08-23 | 1989-02-22 | $7700.00 | Window Closed / Lapsed |