US4195201A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Inductive coil module
Assignee: AT&T Inc
•
Filing: 1978-05-10
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Granted: 1980-03-25
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Expires: 1998-05-10
Abstract
Abstract A plurality of inductive coils (FIG. 4; 10--10) are mounted in a coil module (30) which is comprised of an elongated housing (31) having a substantially oval cross section. A potting compound (44) encapsulates the mounted coils (10--10) and a layer of epoxy (46) covers the compound. Leads (11 and 12) from the coils (10--10) are attached to a pair of connectors (42 and 43) which are partially embedded in the epoxy (46) and project through an opening (32) in the housing (31).
Inventors
- 👤 Frank J. Gryl, Jr.
- 👤 James A. Mahler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 15:57
CPC Classifications
H; H01; H01F; H01F17/00; H01F17/04; H01F17/06; H01F17/08; H01R; H01R4/00; H01R4/24; H01R4/2416; H01R4/242; H01R4/2425; H01R4/2429
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
71 words
A coil module, comprising: a housing having a substantially oval cross section and a plurality of leaded inductive coils therein; a potting compound encapsulating the coils; a portion of the housing overhanging the potting compound; a hardened material, covering the potting compound, captured between the overhang and the potting compound; and at least one connector embedded in the hardened material with a portion thereof accessible through an opening in the housing.
Claim 2
Dependent Claim
71 words
A coil module, comprising: a housing having a substantially oval cross section and a plurality of leaded inductive coils therein; a potting compound encapsulating the coils; a portion of the housing overhanging the potting compound; a hardened material, covering the potting compound, captured between the overhang and the potting compound; and at least one connector embedded in the hardened material with a portion thereof accessible through an opening in the housing.
Claim 3
Dependent Claim
61 words
The coil module as set forth in claim 1 which is further characterized in that: the connector has a plurality of terminals therein having first and second ends; the first ends of the terminals are embedded in the hardened material and are connected to the coil leads; and the second ends of the terminals are accessible for connection through the opening.
Claim 4
Dependent Claim
15 words
The coil module as set forth in claim 1 wherein: the hardened material is epoxy.
Claim 5
Dependent Claim
15 words
The coil module as set forth in claim 1 wherein: the potting compound is polyurethane.
Claim 6
Dependent Claim
21 words
The coil module as set forth in claim 1, wherein: a portion of the embedded connector extends into the potting compound.
Claim 7
Dependent Claim
84 words
A load coil module comprised of: an elongated housing having closed ends and a substantially oval cross section; two rows of leaded load coils mounted within and in spaced relation to the housing; the housing having a longitudinal opening therein; a polyurethane potting compound surrounding the load coils; a layer of hardened epoxy interposed between the potting compound and the longitudinal opening; and a male and female connector embedded in the epoxy layer, with a portion of each connector protruding through the longitudinal opening.
Claim 8
Dependent Claim
84 words
A load coil module comprised of: an elongated housing having closed ends and a substantially oval cross section; two rows of leaded load coils mounted within and in spaced relation to the housing; the housing having a longitudinal opening therein; a polyurethane potting compound surrounding the load coils; a layer of hardened epoxy interposed between the potting compound and the longitudinal opening; and a male and female connector embedded in the epoxy layer, with a portion of each connector protruding through the longitudinal opening.
Claim 9
Independent Claim
106 words
A method of fabricating a coil module comprising a housing having a plurality of leaded coils therein, the method comprising the steps of: connecting the coil leads to terminals on a connector; p1 filling the housing with a flowable potting compound, through an opening in the housing, to a level that fully encapsulates the coils; adding a hardenable material to fill the volume between the surface of the potting compound and the opening; embedding the connector and wires in the hardenable material; and capturing the hardenable material between an overhanging portion of the housing and the potting compound as the compound and the materials are hardened.
Claim 10
Independent Claim
106 words
A method of fabricating a coil module comprising a housing having a plurality of leaded coils therein, the method comprising the steps of: connecting the coil leads to terminals on a connector; p1 filling the housing with a flowable potting compound, through an opening in the housing, to a level that fully encapsulates the coils; adding a hardenable material to fill the volume between the surface of the potting compound and the opening; embedding the connector and wires in the hardenable material; and capturing the hardenable material between an overhanging portion of the housing and the potting compound as the compound and the materials are hardened.
Claim 11
Dependent Claim
19 words
The method of fabricating a coil module as set forth in claim 7, wherein: the potting compound is polyurethane.
Claim 12
Dependent Claim
19 words
The method of fabricating a coil module as set forth in claim 7, wherein: the hardenable material is epoxy.
Claim 13
Dependent Claim
32 words
The method of fabricating a coil module as set forth in claim 7, which is further characterized in that: causing a portion of the embedded connector to extend into the potting compound.
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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) | 1983-03-25 | 1983-09-24 | 1984-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-03-25 | 1987-09-24 | 1988-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-03-25 | 1991-09-24 | 1992-03-25 | $7700.00 | Window Closed / Lapsed |