US3852643A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Printed circuit board assembly and heat sink
Assignee: Panasonic Holdings Corp
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Filing: 1973-02-06
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Granted: 1974-12-03
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Expires: 1993-02-06
Abstract
Abstract A printed circuit board assembly comprising a radiation member which carries a heat dissipator such as a transistor and has opposite bent wall portions at its end portions, said bent wall portions being provided with a pair of grooves which are opposite to each other, and a printed circuit board having both edges thereof supported by being inserted in said pair of grooves. A printed circuit board may be readily mounted on and removed from the radiation member.
Inventors
- 👤 H Seki
- 👤 S Furuya
- 👤 M Hiroyasu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:56
CPC Classifications
H; H05; H05K; H05K7/00; H05K7/20; H05K7/2039; H05K7/20509
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
90 words
A printed circuit board assembly comprising a radiator member of square shape carrying directly heat producing components, a pair of bent boards having a certain width formed by bending opposite ends of said radiator member, and a pair of grooves provided on said pair of opposing bent boards and having a width slightly greater than the thickness of a slightly curves printed circuit board, said slightly curved printed circuit board being attached to said radiator member by inserting opposite ends of said printed circuit board into said pair of grooves.
Claim 2
Dependent Claim
90 words
A printed circuit board assembly comprising a radiator member of square shape carrying directly heat producing components, a pair of bent boards having a certain width formed by bending opposite ends of said radiator member, and a pair of grooves provided on said pair of opposing bent boards and having a width slightly greater than the thickness of a slightly curves printed circuit board, said slightly curved printed circuit board being attached to said radiator member by inserting opposite ends of said printed circuit board into said pair of grooves.
Claim 3
Dependent Claim
30 words
A printed circuit board assembly according to claim 1, wherein each of said grooves has a channel shape formed by bending an end portion of each of said bent boards.
Claim 4
Dependent Claim
35 words
A printed circuit board assembly according to claim 1, wherein each of said grooves comprises an end portion of said bent board further inwardly bent and inward projections provided in each of said bent boards.
Claim 5
Dependent Claim
128 words
A channel-shaped radiator member for assembly with a slightly curved printed circuit board comprising a flat portion carrying heat producing components on one surface thereof; and a pair of opposing side portions projecting from the ends of the other surface of said flat portion and formed integrally therewith by bending opposite ends of said flat portion, the opposing surfaces of said side portions each being provided with a groove having a width slightly greater than the thickness of said printed circuit board, said slightly curved printed circuit board being attached to said radiator member by inserting opposite ends of said board into the grooves in said opposing side portions, the slight curvature of said printed circuit board causing it to be retained firmly and stably within said grooves.
Claim 6
Dependent Claim
128 words
A channel-shaped radiator member for assembly with a slightly curved printed circuit board comprising a flat portion carrying heat producing components on one surface thereof; and a pair of opposing side portions projecting from the ends of the other surface of said flat portion and formed integrally therewith by bending opposite ends of said flat portion, the opposing surfaces of said side portions each being provided with a groove having a width slightly greater than the thickness of said printed circuit board, said slightly curved printed circuit board being attached to said radiator member by inserting opposite ends of said board into the grooves in said opposing side portions, the slight curvature of said printed circuit board causing it to be retained firmly and stably within said grooves.
References Cited (Backward Citations)
US3219885A
Cited
US3217793A
Cited
US3288301A
Cited
US3355540A
Cited
US3567998A
Cited
US3689804A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-12-02 | 1978-06-03 | 1978-12-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-02 | 1982-06-03 | 1982-12-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-02 | 1986-06-03 | 1986-12-03 | $7700.00 | Window Closed / Lapsed |