US4204248A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat transfer mounting arrangement for a solid state device connected to a circuit board
Assignee: General Electric Co
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Filing: 1978-11-20
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Granted: 1980-05-20
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Expires: 1998-11-20
Abstract
Abstract A solid state device, such as a power transistor, is fastened to a mounting arrangement that provides good heat conduction to a chassis or heat sink, that holds the solid state device so that its leads can be connected to a printed circuit board without strain, and that occupies a relatively small area of the printed circuit board.
Inventors
- 👤 Daniel S. Proffit
- 👤 Maurice Regignano
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 07:11
CPC Classifications
H; H10; H10W; H10W40/00; H10W40/20; H10W40/22; H10W40/226; H10W40/60; H10W40/611; H10W40/231
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
80 words
An improved radio construction comprising: a. a metallic chassis; b. a printed circuit board mounted on said chassis, said printed circuit board having holes therethrough in which electrical leads can be placed and soldered; c. and a mounting arrangement for a solid state device comprising: 1. a metallic plate extending away from said printed circuit board and having at least two spaced projections, said spaced projections extending into respective holes in said printed circuit board, and being soldered thereto; 2.
Claim 2
Dependent Claim
80 words
An improved radio construction comprising: a. a metallic chassis; b. a printed circuit board mounted on said chassis, said printed circuit board having holes therethrough in which electrical leads can be placed and soldered; c. and a mounting arrangement for a solid state device comprising: 1. a metallic plate extending away from said printed circuit board and having at least two spaced projections, said spaced projections extending into respective holes in said printed circuit board, and being soldered thereto; 2.
Claim 3
Dependent Claim
89 words
a metallic member attached to said plate in the vicinity of said spaced projections, said metallic member extending from said plate over and in contact with a portion of said chassis; 3. means fastening said metallic member to said chassis to provide a heat path from said metallic plate through said metallic member to said chassis; 4. and a solid state device attached to said metallic plate in heat transfer relation therewith, said solid state device having leads extending into respective holes in said printed circuit board and being
Claim 4
Dependent Claim
89 words
a metallic member attached to said plate in the vicinity of said spaced projections, said metallic member extending from said plate over and in contact with a portion of said chassis; 3. means fastening said metallic member to said chassis to provide a heat path from said metallic plate through said metallic member to said chassis; 4. and a solid state device attached to said metallic plate in heat transfer relation therewith, said solid state device having leads extending into respective holes in said printed circuit board and being
Claim 5
Dependent Claim
23 words
soldered thereto. 2. The improved construction of claim 1 wherein said metallic member extends from said plate at substantially a right angle therewith.
Claim 6
Dependent Claim
21 words
The improved construction of claim 1 or claim 2 wherein said metallic member is an integral portion of said metallic plate.
Claim 7
Dependent Claim
21 words
The improved construction of claim 3 wherein said projections include shoulders that rest against a surface of said printed circuit board.
Claim 8
Dependent Claim
16 words
The improved construction of claim 4 wherein said solid state device physically contacts said metallic plate.
References Cited (Backward Citations)
US2947957A
Cited
GB911445A
Cited
US3487267A
Cited
US3665256A
Cited
US3641474A
Cited
US4054901A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-05-20 | 1983-11-19 | 1984-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-05-20 | 1987-11-19 | 1988-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-05-20 | 1991-11-19 | 1992-05-20 | $7700.00 | Window Closed / Lapsed |