US5289342A
Expired / Lapsed
US
⏱️ 0.0 years remaining
System with cooling of electronic components on a circuit board
Assignee: Ergo Computing Inc
•
Filing: 1992-11-09
•
Granted: 1994-02-22
•
Expires: 2012-11-09
Abstract
Abstract The system includes a circuit board on which electrical components are mounted. The components are mounted on the front side of the board, and the back side of the board is thermally coupled to the housing by a liquid-filled thermal heat sink pouch between the board and the housing. A heat generating component such as a microprocessor is mounted to the front side of the board, but the top surface of the component is directed toward the back side of the board such that it is also thermally coupled to the housing.
Inventors
- 👤 Tom J. Spalding
- 👤 Keith E. Kowal
- 👤 James H. Bleck
- 👤 Scott H. Wakefield
- 👤 John E. Thrailkill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:25
CPC Classifications
G; G06; G06F; G06F1/00; G06F1/16; G06F1/1613; G06F1/1633; G06F1/1656; G06F1/1615; G06F1/1632
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
113 words
An electronic system comprising: a housing; a circuit board within the housing having a front side with electronic components mounted thereon and a rearward back side contacting a heat sink such that the back side is thermally coupled to the housing by the heat sink; a mounting board mounted on the front side of the circuit board; and a heat generating electronic component having a mounting side and a top side, the heat generating component being mounted on the mounting board and facing rearwardly where the top side of the heat generating component contacts the heat sink such that the heat generating component is thermally coupled to the housing by the heat sink.
Claim 2
Dependent Claim
113 words
An electronic system comprising: a housing; a circuit board within the housing having a front side with electronic components mounted thereon and a rearward back side contacting a heat sink such that the back side is thermally coupled to the housing by the heat sink; a mounting board mounted on the front side of the circuit board; and a heat generating electronic component having a mounting side and a top side, the heat generating component being mounted on the mounting board and facing rearwardly where the top side of the heat generating component contacts the heat sink such that the heat generating component is thermally coupled to the housing by the heat sink.
Claim 3
Dependent Claim
26 words
An electronic system as recited in claim 1 wherein the heat sink is a liquid-filled thermal heat sink pouch between the circuit board and the housing.
Claim 4
Dependent Claim
21 words
An electronic system as recited in claim 1 wherein the heat generating component protrudes through a window in the circuit board.
Claim 5
Dependent Claim
41 words
An electronic system as recited in claim 1 wherein the mounting board comprises a second mounting circuit board to which the electronic component is mounted, the second mounting circuit board being mounted on the front side of the first circuit board.
References Cited (Backward Citations)
US4092697A
Cited
EP0093398A2
Cited
US4558270A
Cited
US4740167A
Cited
US4598308A
Cited
US4569567A
Cited
US4619489A
Cited
GB2167906A
Cited
US4596436A
Cited
US4981438A
Cited
US4701003A
Cited
US4858162A
Cited
US4997032A
Cited
US4982311A
Cited
US4771365A
Cited
US4985804A
Cited
US4850897A
Cited
US4931908A
Cited
CH675652A5
Cited
US5000692A
Cited
US4956561A
Cited
US5030128A
Cited
JPH02288176A
Cited
US5007478A
Cited
US4941845A
Cited
US4952755A
Cited
US5006924A
Cited
US5000256A
Cited
US5026295A
Cited
US5011418A
Cited
US5502943A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-02-21 | 1997-08-23 | 1998-02-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-02-21 | 2001-08-23 | 2002-02-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-02-21 | 2005-08-23 | 2006-02-22 | $7700.00 | Window Closed / Lapsed |