US5079388A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gasket for sealing electromagnetic waves
Assignee: Bal Seal Engineering LLC
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Filing: 1990-08-17
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Granted: 1992-01-07
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Expires: 2010-08-17
Abstract
Abstract An electromagnetic shielding gasket assembly includes a coil spring for blocking the propagation of electromagnetic waves therepast. The coil spring includes individal coils interconnected with one another and disposed in a canted relationship with a centerline of the coil spring and cause the coil spring to block the propagation of electromagnetic waves. The individual coils may be interconnected in a manner forming a continuous circular spring which may be disposed in a groove including a wedge-shaped portion for deflecting the individual coils and causing the individual coils to abutt at an inside diameter of the continuous circular spring.
Inventors
- 👤 Peter J. Balsells
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:58
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/02; F16J15/06; F16J15/08; F16J15/0887; F16J15/0893; F16F; F16F1/00; F16F1/02; F16F1/04; F16F1/045; H; H01; H01R; H01R13/00; H01R13/648; H01R13/658; H01R13/6581; H01R13/6582; H01R13/6583; H01R13/6584; H05; H05K; H05K9/00; H05K9/0007; H05K9/0015; H05K9/0016; Y; Y10; Y10S; Y10S277/00; Y10S277/92
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
82 words
Electromagnetic shielding gasket assembly comprising: coil spring means for blocking the propagation of electromagnetic waves therepast, said coil spring means comprising a plurality of individual coils canted along a centerline thereof; means for supporting the plurality of individual coils in an orientation for controlling the electromagnetic shielding effectiveness of the coil spring means; and means, cooperating with said coil spring means, for loading the plurality of coils to control an aperture of the coil spring means through which electromagnetic waves can propagate.
Claim 2
Dependent Claim
82 words
Electromagnetic shielding gasket assembly comprising: coil spring means for blocking the propagation of electromagnetic waves therepast, said coil spring means comprising a plurality of individual coils canted along a centerline thereof; means for supporting the plurality of individual coils in an orientation for controlling the electromagnetic shielding effectiveness of the coil spring means; and means, cooperating with said coil spring means, for loading the plurality of coils to control an aperture of the coil spring means through which electromagnetic waves can propagate.
Claim 3
Dependent Claim
23 words
The electromagnetic shielding gasket according to claim 1 wherein said individual coils are interconnected in a manner forming a continuous circular coil spring.
Claim 4
Dependent Claim
35 words
The electromagnetic shielding gasket according to claim 2 wherein said individual coils are fabricated from wire having a diameter, d, selected to achieve a desired shielding effectiveness, said shielding effectiveness increasing with increasing wire diameter.
Claim 5
Dependent Claim
34 words
The electromagnetic shielding gasket according to claim 3 wherein said individual coils are formed with a coil diameter, D, selected to achieve a desired shielding effectiveness, said shielding effectiveness decreasing with increasing D/d ratio.
Claim 6
Dependent Claim
84 words
The electromagnetic shielding gasket assembly according to claim 1 wherein said individual coils are interconnected in a manner forming a continuous circular coil spring having a turn angle greater than zero degree and said means for supporting the plurality of individual coils includes load and groove means for increasing the turn angle of the continuous circular coil spring to control an aperture of the circular coil spring through which electromagnetic waves may propagate thereby controlling the electromagnetic shielding effectiveness of the coil spring means.
Claim 7
Dependent Claim
35 words
The electromagnetic shielding gasket according to claim 5 wherein said individual coils are fabricated from wire having a diameter, d, selected to achieve a desired shielding effectiveness, said shielding effectiveness increasing with increasing wire diameter.
Claim 8
Dependent Claim
34 words
The electromagnetic shielding gasket according to claim 6 wherein said individual coils are formed with a coil diameter, D, selected to achieve a desired shielding effectiveness, said shielding effectiveness decreasing with increasing D/d ratio.
Claim 9
Dependent Claim
39 words
The electromagnetic shielding gasket according to claim 1 further comprising groove means for containing said coil spring means, and said means for supporting the plurality of individual coils includes means for causing said individual coils to abutt one another.
Claim 10
Dependent Claim
24 words
The electromagnetic shielding gasket assembly according to claim 8 wherein said individual coils are interconnected in a manner forming a continuous circular coil spring.
Claim 11
Dependent Claim
36 words
The electromagnetic shielding gasket assembly according to claim 9 wherein said individual coils are fabricated from wire having a diameter, d, selected to achieve a desired shielding effectiveness, said shielding effectiveness decreasing with increasing wire diameter.
Claim 12
Dependent Claim
34 words
The electromagnetic shielding gasket according to claim 10 wherein said individual coils are formed with a coil diameter, D, selected to achieve a desired shielding effectiveness, said shielding effectiveness increasing with increasing D/d ratio.
Claim 13
Dependent Claim
22 words
The electromagnetic shielding gasket assembly according to claim 9 wherein said means for causing said individual coils to abutt comprises a wedge.
Claim 14
Dependent Claim
20 words
The electromagnetic shielding gasket assembly according to claim 12 wherein said wedge is an integral part of said groove means.
Claim 15
Dependent Claim
23 words
The electromagnetic shielding gasket assembly according to claim 12 wherein said wedge is disposed within said groove means and is not fixed thereto.
Claim 16
Dependent Claim
36 words
The electromagnetic shielding gasket assembly according to claim 13 wherein said wedge is disposed within said groove means and includes means, defining an exterior shape thereof, for loading said individual coils along a minor axis thereof.
Claim 17
Dependent Claim
35 words
The electromagnetic shielding gasket assembly according to claim 14 wherein said wedge is disposed within said groove and including means, defining an exterior shape thereof, for loading said individual coils along a minor axis thereof.
Claim 18
Dependent Claim
43 words
The electromagnetic shielding gasket assembly according to claim 13 wherein said wedge is disposed within said groove means and includes means, defining an exterior shape, for causing said individual coils to abutt one another along an inside diameter of said continuous coil spring.
Claim 19
Dependent Claim
71 words
The electromagnetic shielding gasket assembly according to claim 1 further comprising groove means for containing said coil spring means, and said means for supporting the plurality of coils includes means for causing said individual coils to abutt one another without fatigue thereof and enabling repeated assembly and disassembly of parts, between which said electromagnetic shielding gasket assembly is disposed, without loss of electromagnetic shielding effectiveness due to such assembly and disassembly.
Claim 20
Dependent Claim
36 words
The electromagnetic shielding gasket assembly according to claim 18 wherein said individual coils are interconnected in a manner forming a continuous coil spring and said means for causing said individual coils to abutt comprises a wedge.
Claim 21
Dependent Claim
20 words
The electromagnetic shielding gasket assembly according to claim 19 wherein said wedge is an integral part of said groove means.
Claim 22
Dependent Claim
23 words
The electromagnetic shielding gasket assembly according to claim 19 wherein said wedge is disposed within said groove means and is not fixed thereto.
Claim 23
Dependent Claim
24 words
The electromagnetic shielding gasket assembly according to claim 21 wherein said individual coils are interconnected in a manner forming a continuous circular coil spring.
Claim 24
Dependent Claim
36 words
The electromagnetic shielding gasket assembly according to claim 22 wherein said individual coils are fabricated from wire having a diameter, d, selected to achieve a desired shielding effectiveness, said shielding effectiveness decreasing with increasing wire diameter.
Claim 25
Dependent Claim
35 words
The electromagnetic shielding gasket assembly according to claim 23 wherein said individual coils are formed with a coil diameter, D, selected to achieve a desired shielding effectiveness, said shielding effectiveness increasing with increasing D/d ratio.
Claim 26
Dependent Claim
36 words
The electromagnetic shielding gasket assembly according to claim 24 wherein said wedge is disposed within said groove means and including means, defining an exterior shape thereof, for loading said individual coils along a minor axis thereof.
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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) | 1995-01-06 | 1995-07-08 | 1996-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-01-06 | 1999-07-08 | 2000-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-01-06 | 2003-07-08 | 2004-01-07 | $7700.00 | Window Closed / Lapsed |