Patent US5392197A successfully refreshed from Google Patents.
US5392197A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Moisture proof of electric device for motor vehicles
Assignee: Robert Bosch GmbH
•
Filing: 1992-08-14
•
Granted: 1995-02-21
•
Expires: 2012-08-14
Abstract
Abstract The electric device has a printed circuit board (10) which carries an electronic circuit with electronic components (12). The circuit is provided with a plug connector strip (14) for making electrical contact. In addition to the housing cover (27) and housing base (32), additional plastic coverings (16, 23) which are tight against moisture are provided to protect the circuit against moisture in a reliable manner and cover the printed circuit board on the upper side (11) and the underside (22) in the manner of a hood. These plastic parts are connected with the printed circuit board so as to be tight against moisture. The housing cover (27) and housing base (30) need not carry out any sealing functions and serve exclusively to protect against mechanical damage and, under certain circumstances, for shielding.
Inventors
- 👤 Harald Cuntz
- 👤 Martin Rau
- 👤 Dieter Karr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:32
CPC Classifications
H; H05; H05K; H05K5/00; H05K5/0026; H05K5/0047; Y; Y10; Y10S; Y10S174/00; Y10S174/34
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
51 words
Electric device comprising a housing; at least one printed circuit board arranged in said housing and carrying an electronic circuit; and at least one covering means arranged in said housing and formed to protect said printed circuit board from moisture, said covering means being moisture-impermeable but being at least partially gas-permeable.
Claim 2
Dependent Claim
51 words
Electric device comprising a housing; at least one printed circuit board arranged in said housing and carrying an electronic circuit; and at least one covering means arranged in said housing and formed to protect said printed circuit board from moisture, said covering means being moisture-impermeable but being at least partially gas-permeable.
Claim 3
Dependent Claim
89 words
Electric device as defined in claim 1, wherein said electronic circuit comprises conductor paths and electronic components, and wherein an upper side of said at least one printed circuit board is protected by one of said at least one covering means and an underside of said at least one printed circuit board is protected by another of said at least one covering means so that all of said conductor paths and said electronic components of said electronic circuit are protected against moisture by said at least one covering means.
Claim 4
Dependent Claim
21 words
Electric device as defined in claim 1, wherein said at least one covering means is a plastic cover impermeable to moisture.
Claim 5
Dependent Claim
37 words
Electric device as defined in claim 1, wherein said at least one covering means comprises a plurality of plastic molded parts connected with said at least one printed circuit board so as to tightly seal against moisture.
Claim 6
Dependent Claim
21 words
Electric device as defined in claim 1, wherein said at least one covering means is at least partially permeable to air.
Claim 7
Dependent Claim
27 words
Electric device as defined in claim 1, wherein an upper side and an underside of said at least one printed circuit board are connected by a duct.
Claim 8
Dependent Claim
34 words
Electric device as defined in claim 1, wherein said housing is metallic and said at least one covering means includes insulating means for insulating said at least one printed circuit board from said housing.
Claim 9
Dependent Claim
18 words
Electric device as defined in claim 1, wherein said housing is composed of at least two housing parts.
Claim 10
Dependent Claim
34 words
Electric device as defined in claim 1, further comprising a plug connector strip attached to said at least one printed circuit board and at least partially enclosed by said at least one covering means.
Claim 11
Dependent Claim
24 words
Electric device as defined in claim 1, wherein said at least one covering means is at least partially coated with an electrically conductive coating.
Claim 12
Dependent Claim
27 words
Electric device as defined in claim 10, wherein said electrically conductive coating is connected electrically with said electronic circuit on said at least one printed circuit board.
Claim 13
Dependent Claim
17 words
Electric device as defined in claim 1, wherein said at least one covering means is electrically conductive.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1998-02-20 | 1998-08-22 | 1999-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-02-20 | 2002-08-22 | 2003-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-02-20 | 2006-08-22 | 2007-02-21 | $7700.00 | Window Closed / Lapsed |