US4620263A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Container for accommodating a control device
Assignee: Mitsubishi Electric Corp
•
Filing: 1984-04-03
•
Granted: 1986-10-28
•
Expires: 2004-04-03
Abstract
Abstract A control device which contains parts that generate heat which comprises a box made of an aluminum die cast having radiator fins, and a cover plate that covers the open portion of the box. Cut-away portions are formed in the top surface and in the bottom surface of the box, and covers with or without windows are fitted to the cut-away portions, to permit construction of the control device in either a completely sealed form or shielded form housing.
Inventors
- 👤 Eizi Ito
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:53
CPC Classifications
H; H05; H05K; H05K7/00; H05K7/20; H05K7/2089; H05K7/20909; H05K7/20918; H05K7/14; H05K7/1417
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
118 words
A control device, comprising: a control mechanism which rises in temperature during use; and a container including: a die cast aluminum housing having radiator fins, said housing containing said control mechanism therein, said housing having a side surface having an opening therein for obtaining access therethrough to the interior thereof, and opposite top and bottom surfaces, said top and bottom surfaces respectively having top and bottom cut-away portions, a cover plate covering said opening mounted to said housing over said opening, said housing and cover plate forming means for sealing the interior of said housing except through said cut-away portions, and top and bottom protective covers attached to said housing respectively covering said top and bottom cut-away portions.
Claim 2
Dependent Claim
118 words
A control device, comprising: a control mechanism which rises in temperature during use; and a container including: a die cast aluminum housing having radiator fins, said housing containing said control mechanism therein, said housing having a side surface having an opening therein for obtaining access therethrough to the interior thereof, and opposite top and bottom surfaces, said top and bottom surfaces respectively having top and bottom cut-away portions, a cover plate covering said opening mounted to said housing over said opening, said housing and cover plate forming means for sealing the interior of said housing except through said cut-away portions, and top and bottom protective covers attached to said housing respectively covering said top and bottom cut-away portions.
Claim 3
Dependent Claim
16 words
A control device as in claim 1, wherein said cover plate is formed of molded plastic.
Claim 4
Dependent Claim
18 words
A control device as in claim 1, wherein said covers have windows therein permitting cooling air flow therethrough.
Claim 5
Dependent Claim
37 words
A control device as in claim 1, wherein said top and bottom protective covers respectively comprise thin separate top and bottom heat radiating metal plates respectively fitted in grooves formed in said top and bottom cut-away portions.
Claim 6
Dependent Claim
72 words
A control device as in claim 1, wherein said top cover comprises a thin metal heat radiating top plate sealingly mounted to said top cut-away portion so as to prevent gas flow therethrough, said bottom cover comprising a thin metal heat radiating bottom plate mounted to said bottom cut-away portion so as to prevent gas flow therethrough, and having holes therein for receiving electrical wires therethrough for connection to said control mechanism.
Claim 7
Dependent Claim
18 words
A control device as in claim 5, wherein said control mechanism comprises a temperature sensitive electronic control circuit.
Claim 8
Dependent Claim
25 words
A control device as in claim 5, wherein said top and bottom plates are fitted in grooves formed in said top and bottom cut-out portions.
Claim 9
Dependent Claim
18 words
A control device as in claim 1, wherein said control mechanism comprises a temperature sensitive electronic control circuit.
Claim 10
Dependent Claim
16 words
A control device as in claim 5, wherein said cover plate is formed of molded plastic.
Claim 11
Dependent Claim
25 words
A control device as in claim 4, wherein said cutaway portions and top and bottom plates are trapezoidally shaped and have inner obliquely angled corners.
Claim 12
Dependent Claim
25 words
A control device as in claim 7, wherein said cutaway portions and top and bottom plates are trapezoidally shaped and have inner obliquely angled corners.
References Cited (Backward Citations)
US3407869A
Cited
US4489363A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-10-27 | 1990-04-28 | 1990-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-10-27 | 1994-04-28 | 1994-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-10-27 | 1998-04-28 | 1998-10-28 | $7700.00 | Window Closed / Lapsed |