US4792879A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mounting structure for electric and electronic circuit elements
Assignee: IFM Electronic GmbH
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Filing: 1987-08-24
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Granted: 1988-12-20
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Expires: 2007-08-24
Abstract
Abstract A proximity switch or contactless switch circuit comprises within a casing a flexible insulating carrier provided along a component side with a multiplicity of electronic components connected by conductive strips to form the contactless or proximity switch circuit. An extension of the carrier or the opposite side of the carrier are provided with continuous conductive coatings so that when the carrier is folded or rolled within the casing, a portion of the carrier strip provided with the coating or layer forms an additional shield.
Inventors
- 👤 Otto Bauknecht
- 👤 Norbert Lichte
- 👤 Karl-Heinz Warken
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:40
CPC Classifications
H; H05; H05K; H05K9/00; H05K9/0007; H05K9/005; H03; H03K; H03K17/00; H03K17/94; H03K17/945; H05K1/00; H05K1/18; H05K1/189; H05K1/02; H05K1/0213; H05K1/0216; H05K1/0218; H05K2201/00; H05K2201/04; H05K2201/042; H05K2201/05; H05K2201/051; H05K2201/056; H05K2201/07; H05K2201/0707; H05K2201/0715; H05K2201/10; H05K2201/10007; H05K2201/10106; H05K2201/20; H05K2201/2009; H05K2203/00; H05K2203/13; H05K2203/1305; H05K2203/1311; H05K3/00; H05K3/0058; H05K3/22; H05K3/28; H05K3/284
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
153 words
An electrical contactless switch, comprising: a casing; a flexible strip-like insulating carrier, including a first part having conductive strips provided thereon, and a flexible extension along a common edge from said first part with an electrically conductive layer coated thereon; electronic components mounted on a component side of said first part of said carrier and being electrically connected by said conductive strips to form a circuit of said contactless switch; said first part of said carrier being folded into folds in accordion fashion to form a compact assembly, with vertices of said folds being parallel to said common edge of said first part and said extension; and said extension being wrapped around said assembly in the form of a wrapping, with an axis of said wrapping being parallel to said vertices of said folds to form an electrical shield for said assembly; wherein said wrapping with said assembly is inserted into said casing.
Claim 2
Dependent Claim
153 words
An electrical contactless switch, comprising: a casing; a flexible strip-like insulating carrier, including a first part having conductive strips provided thereon, and a flexible extension along a common edge from said first part with an electrically conductive layer coated thereon; electronic components mounted on a component side of said first part of said carrier and being electrically connected by said conductive strips to form a circuit of said contactless switch; said first part of said carrier being folded into folds in accordion fashion to form a compact assembly, with vertices of said folds being parallel to said common edge of said first part and said extension; and said extension being wrapped around said assembly in the form of a wrapping, with an axis of said wrapping being parallel to said vertices of said folds to form an electrical shield for said assembly; wherein said wrapping with said assembly is inserted into said casing.
Claim 3
Dependent Claim
13 words
The switch of claim 1, said wrapping being open at opposing ends thereof.
Claim 4
Dependent Claim
54 words
The switch of claim 1, wherein a flat auxiliary support is provided within said casing, and said first part of said carrier is at least in part bonded to opposite sides of said support, said support thus forming a part of said compact assembly, and said extension being free from attachment to said support.
Claim 5
Dependent Claim
12 words
The switch of claim 1, said casing and said wrapping being cylindrical.
Claim 6
Dependent Claim
40 words
The switch of claim 1, wherein said electrically conductive layer on said extension extends on said first part of said carrier, on a surface of said carrier opposite said component side, to form an extended electrical shield for said assembly.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-12-20 | 1992-06-20 | 1992-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-12-20 | 1996-06-20 | 1996-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-12-20 | 2000-06-20 | 2000-12-20 | $7700.00 | Window Closed / Lapsed |