US5072070A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for sealing electromagnetic waves
Assignee: Bal Seal Engineering LLC
•
Filing: 1989-12-01
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Granted: 1991-12-10
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Expires: 2009-12-01
Abstract
Abstract A resilient electromagnetic shielding gasket utilizes a plurality of conductive wire coils which are loaded in a manner so that coil spacing may be selectively adjusted at specific areas along the circumference thereof in order to provide an electromagnetic shield. Other portions along the circumference of the gasket provide sufficient biasing capability to take up for variations that may occur due to torquing, eccentricities, irregularities and other variables and thereby imminent contact between mating surfaces under load. The spacing along a seal-load portion of the gasket is selected to limit the passage of electromagnetic energy with a wavelength greater than a selected value. <IMAGE>
Inventors
- 👤 Peter J. Balsells
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:16
CPC Classifications
F; F16; F16F; F16F1/00; F16F1/02; F16F1/04; F16F1/045; F16J; F16J15/00; F16J15/02; F16J15/06; F16J15/08; F16J15/0887; F16J15/0893; H; H01; H01R; H01R13/00; H01R13/648; H01R13/658; H01R13/6581; H01R13/6582; H01R13/6583; H01R13/6584
Claims Analysis
Total Claims: 68
Claim 1
Independent Claim
79 words
A resilient electromagnetic shielding device comprising: a plurality of conductive wire coils canted along a centerline thereof; means for preloading said plurality of coils in a manner causing coil spacing along the circumference of adjoining coils to be less along a seal-load portion thereof than along other coil portions on the circumference of adjoining coils, said coil spacing along the seal-load portion being selected to limit the passage of electromagnetic energy with a wavelength greater than a selected value.
Claim 2
Dependent Claim
79 words
A resilient electromagnetic shielding device comprising: a plurality of conductive wire coils canted along a centerline thereof; means for preloading said plurality of coils in a manner causing coil spacing along the circumference of adjoining coils to be less along a seal-load portion thereof than along other coil portions on the circumference of adjoining coils, said coil spacing along the seal-load portion being selected to limit the passage of electromagnetic energy with a wavelength greater than a selected value.
Claim 3
Dependent Claim
77 words
The resilient electromagnetic shielding device according to claim 1 further comprising back angle means for both defining the disposition of a trailing portion of each coil with respect to a line normal to the centerline and for determining the working resilient range of the gasket and front angle means for defining the disposition of a leading portion of each coil with respect to the normal line, said front angle means being greater than said back angle means.
Claim 4
Dependent Claim
34 words
The resilient electromagnetic shielding device according to claim 2 wherein the back angle means defines a working resilient range wherein the gasket exerts a generally constant force in response to deflection of the gasket.
Claim 5
Dependent Claim
21 words
The resilient electromagnetic shielding device according to claim 3 wherein said coils are interconnected in a manner forming a continuous gasket.
Claim 6
Dependent Claim
23 words
The resilient electromagnetic shielding device according to claim 4 wherein said coils are interconnected in a manner forming a circular axially resilient gasket.
Claim 7
Dependent Claim
42 words
The resilient electromagnetic shielding device according to claim 5 wherein said coils are interconnected in a manner such that the trailing portion is along an inside diameter of the gasket and the leading portion is along an outside diameter of the gasket.
Claim 8
Dependent Claim
42 words
The resilient electromagnetic shielding device according to claim 5 wherein said coils are interconnected in a manner such that the trailing portion is along an outside diameter of the gasket and the leading portion is along an inside diameter of the gasket.
Claim 9
Dependent Claim
42 words
A resilient electromagnetic shielding device according to claim 7 wherein said means for preloading comprises means for defining a groove for holding said plurality of conductive wire coils and wedge means for deflecting the plurality of coils along a minor axis thereof.
Claim 10
Dependent Claim
31 words
The resilient electromagnetic shielding device according to claim 8 wherein said wedge means is suspended in said groove means and biased by said plurality of coils against an opposing loading surface.
Claim 11
Dependent Claim
31 words
The resilient electromagnetic shielding device according to claim 8 wherein said wedge means is fixed to an opposing loading surface, said opposing loading surface being biased by said plurality of coils.
Claim 12
Dependent Claim
50 words
The resilient electromagnetic shielding device according to claim 1 wherein said coils are interconnected in a manner forming a circular axially resilient gasket and said seal-load portion is disposed adjacent an inside diameter of the circular axially resilient gasket, said seal-load portion of each coil collectively defining a load circle.
Claim 13
Dependent Claim
28 words
The resilient electromagnetic shielding device according to claim 11 further comprising means, compressing said circular axially resilient gasket along a minor axis thereof, for reducing the load circle.
Claim 14
Dependent Claim
35 words
The resilient electromagnetic shielding device according to claim 12 wherein the means for preloading comprises means defining a groove and said means comprising said circular axially resilient gasket comprises a wedge disposed in said groove.
Claim 15
Dependent Claim
26 words
The resilient electromagnetic shielding device according to claim 13 wherein said wedge is disposed in a fashion enabling movement thereof with the coils upon loading thereof.
Claim 16
Dependent Claim
14 words
The resilient electromagnetic shielding device according to claim 13 wherein said wedge is fixed.
Claim 17
Dependent Claim
64 words
A resilient electromagnetic shielding device according to claim 1 wherein said plurality of coils has a major axis and a minor axis with respect to the centerline and said means for preloading said plurality of coils comprises means defining a groove for holding said plurality of conductive wire coils with wedge portion means for deflecting the plurality of coils along a minor axis thereof.
Claim 18
Dependent Claim
67 words
A resilient electromagnetic shielding device comprising: a plurality of conductive wire coils canted along a centerline thereof; means for preloading said plurality of coils in a manner causing adjoining coils to abutt one another only along a seal-load portion on the circumference thereof to provide shielding against the passage of electromagnetic energy, other coil portions on the circumference of adjoining coils remaining in a spaced apart relationship.
Claim 19
Dependent Claim
67 words
A resilient electromagnetic shielding device comprising: a plurality of conductive wire coils canted along a centerline thereof; means for preloading said plurality of coils in a manner causing adjoining coils to abutt one another only along a seal-load portion on the circumference thereof to provide shielding against the passage of electromagnetic energy, other coil portions on the circumference of adjoining coils remaining in a spaced apart relationship.
Claim 20
Dependent Claim
42 words
The resilient electromagnetic shielding device according to claim 17 further comprising insert means, disposed between abutting coils, for limiting passage of electromagnetic energy through an area subtended by the surface of each abutting coil and a loading surface contacting said abutting coils.
Claim 21
Dependent Claim
23 words
The resilient electromagnetic shielding device according to claim 18 wherein said insert means comprises a conductive wire having a generally round cross section.
Claim 22
Dependent Claim
22 words
The resilient electromagnetic shielding device according to claim 18 wherein said insert means comprises a conductive wire having a generally triangular cross-section.
Claim 23
Dependent Claim
77 words
The resilient electromagnetic shielding device according to claim 17 further comprising back angle means for both defining the disposition of a trailing portion of each coil with respect to a line normal to the centerline and for determining the working resilient range of the gasket and front angle means for defining the disposition of a leading portion of each coil with respect to the normal line, said front angle means being greater than said back angle means.
Claim 24
Dependent Claim
34 words
The resilient electromagnetic shielding device according to claim 21 wherein the back angle means defines a working resilient range wherein the gasket exerts a generally constant force in response to deflection of the gasket.
Claim 25
Dependent Claim
21 words
The resilient electromagnetic shielding device according to claim 20 wherein said coils are interconnected in a manner forming a continuous gasket.
Claim 26
Dependent Claim
23 words
The resilient electromagnetic shielding device according to claim 23 wherein said coils are interconnected in a manner forming a circular axially resilient gasket.
Claim 27
Dependent Claim
42 words
The resilient electromagnetic shielding gasket according to claim 24 wherein said coils are interconnected in a manner such that the trailing portion is along an inside diameter of the gasket and the leading portion is along an outside diameter of the gasket.
Claim 28
Dependent Claim
42 words
The resilient electromagnetic shielding device according to claim 24 wherein said coils are interconnected in a manner such that the trailing portion is along an outside diameter of the gasket and the leading portion is along an inside diameter of the gasket.
Claim 29
Dependent Claim
42 words
A resilient electromagnetic shielding device according to claim 17 wherein said means for loading comprises means for defining a groove for holding said plurality of conductive wire coils and wedge means for deflecting the plurality of coils along a minor axis thereof.
Claim 30
Dependent Claim
31 words
The resilient electromagnetic shielding device according to claim 27 wherein said wedge means is suspended in said groove means and biased by said plurality of coils against an opposing loading surface.
Claim 31
Dependent Claim
31 words
The resilient electromagnetic shielding device according to claim 27 wherein said wedge means is fixed to an opposing loading surface, said opposing loading surface being biased by said plurality of coils.
Claim 32
Dependent Claim
50 words
The resilient electromagnetic shielding device according to claim 17 wherein said coils are interconnected in a manner forming a circular axially resilient device and said seal-load portion is disposed adjacent an inside diameter of the circular axially resilient gasket, said seal-load portion of each coil collectively defining a load circle.
Claim 33
Dependent Claim
28 words
The resilient electromagnetic shielding device according to claim 30 further comprising means, comprises said circular axially resilient gasket along a minor axis thereof, for reducing the load circle.
Claim 34
Dependent Claim
35 words
The resilient electromagnetic shielding device according to claim 31 wherein the means for preloading comprises means defining a groove and said means comprising said circular axially resilient gasket comprises a wedge disposed in said groove.
Claim 35
Dependent Claim
26 words
The resilient electromagnetic shielding device according to claim 32 wherein said wedge is disposed in a fashion enabling movement thereof with the coils upon loading thereof.
Claim 36
Dependent Claim
18 words
The resilient electromagnetic shielding device according to claim 32 wherein said wedge is fixed relative to coil loading.
Claim 37
Dependent Claim
64 words
A resilient electromagnetic shielding device according to claim 17 wherein said plurality of coils has a major axis and a minor axis with respect to the centerline and said means for preloading said plurality of coils comprises means defining a groove for holding said plurality of conductive wire coils with wedge portion means for deflecting the plurality of coils along the minor axis thereof.
Claim 38
Dependent Claim
136 words
A resilient electromagnetic shielding device comprising: a plurality of conductive coil means, interconnected and canted along a centerline thereof, for causing the gasket to exert a generally constant force over a selected range of deflection of the gasket in response to loading thereof; means, orienting said plurality of coil means at a turn angle for controlling the magnitude of the generally constant force within the selected range of deflection and for causing coil spacing along the circumference of adjoining coils to be less along a seal-load portion thereof than along other coil portions on the circumference of adjoining coils, said coil spacing along the seal-load portion being selected to limit the passage of electromagnetic energy with a wavelength greater than a selected value, said turn angle being greater than zero degrees and less than 90 degrees.
Claim 39
Dependent Claim
136 words
A resilient electromagnetic shielding device comprising: a plurality of conductive coil means, interconnected and canted along a centerline thereof, for causing the gasket to exert a generally constant force over a selected range of deflection of the gasket in response to loading thereof; means, orienting said plurality of coil means at a turn angle for controlling the magnitude of the generally constant force within the selected range of deflection and for causing coil spacing along the circumference of adjoining coils to be less along a seal-load portion thereof than along other coil portions on the circumference of adjoining coils, said coil spacing along the seal-load portion being selected to limit the passage of electromagnetic energy with a wavelength greater than a selected value, said turn angle being greater than zero degrees and less than 90 degrees.
Claim 40
Dependent Claim
17 words
The resilient electromagnetic shielding device according to claim 36 wherein said turn angle is about 45 degrees.
Claim 41
Dependent Claim
77 words
The resilient electromagnetic shielding device according to claim 35 further comprising back angle means for both defining the disposition of a trailing portion of each coil with respect to a line normal to the centerline and for determining the working resilient range of the gasket and front angle means for defining the disposition of a leading portion of each coil with respect to the normal line, said front angle means being greater than said back angle means.
Claim 42
Dependent Claim
34 words
The resilient electromagnetic shielding device according to claim 38 wherein the back angle means defines a working resilient range wherein the gasket exerts a generally constant force in response to deflection of the gasket.
Claim 43
Dependent Claim
21 words
The resilient electromagnetic shielding device according to claim 37 wherein said coils are interconnected in a manner forming a continuous gasket.
Claim 44
Dependent Claim
23 words
The resilient electromagnetic shielding device according to claim 40 wherein said coils are interconnected in a manner forming a circular axially resilient gasket.
Claim 45
Dependent Claim
42 words
The resilient electromagnetic shielding device according to claim 41 wherein said coils are interconnected in a manner such that the trailing portion is along an inside diameter of the gasket and the leading portion is along an outside diameter of the gasket.
Claim 46
Dependent Claim
42 words
The resilient electromagnetic shielding device according to claim 42 wherein said coils are interconnected in a manner such that the trailing portion is along an outside diameter of the gasket and the leading portion is along an inside diameter of the gasket.
Claim 47
Dependent Claim
47 words
A resilient electromagnetic shielding device according to claim 36 wherein said means for orienting said plurality of coil means comprises means for defining a groove for holding said plurality of conductive wire coils and wedge means for deflecting the plurality of coils along the minor axis thereof.
Claim 48
Dependent Claim
31 words
The resilient electromagnetic shielding device according to claim 44 wherein said wedge means is suspended in said groove means and biased by said plurality of coils against an opposing loading surface.
Claim 49
Dependent Claim
31 words
The resilient electromagnetic shielding device according to claim 44 wherein said wedge means is fixed to an opposing loading surface, said opposing loading surface being biased by said plurality of coils.
Claim 50
Dependent Claim
50 words
The resilient electromagnetic shielding device according to claim 44 wherein said coils are interconnected in a manner forming a circular axially resilient gasket and said seal-load portion is disposed adjacent an inside diameter of the circular axially resilient gasket, said seal-load portion of each coil collectively defining a load circle.
Claim 51
Dependent Claim
28 words
The resilient electromagnetic shielding device according to claim 47 further comprising means, comprises said circular axially resilient gasket along a minor axis thereof, for reducing the load circle.
Claim 52
Dependent Claim
35 words
The resilient electromagnetic shielding device according to claim 48 wherein the means for loading comprises means defining a groove and said means comprising said circular axially resilient gasket comprises a wedge fixed in said groove.
Claim 53
Dependent Claim
26 words
The resilient electromagnetic shielding device according to claim 49 wherein said wedge is disposed in a fashion enabling movement thereof with the coils upon loading thereof.
Claim 54
Dependent Claim
18 words
The resilient electromagnetic shielding device according to claim 50 wherein said wedge is fixed relative to coil loading.
Claim 55
Dependent Claim
66 words
A resilient electromagnetic shielding device according to claim 44 wherein said plurality of conductive coil means has a major axis and a minor axis with respect to the centerline and said means for preloading said plurality of coils comprises means defining a groove for holding said plurality of conductive wire coils with wedge portion means for deflecting the plurality of coils along the minor axis thereof.
Claim 56
Dependent Claim
92 words
A resilient electromagnetic shielding device comprising: a plurality of conductive wire coils canted along a centerline thereof; said coils being interconnected in a manner forming a circular radially resilient gasket; means for preloading said plurality of coils in a manner causing coil spacing along the circumference of adjoining coils to be less along a seal-load portion thereof than along other coil portions on the circumference of adjoining coils, said coil spacing along the seal-load portion being selected to limit the passage of electromagnetic energy with a wavelength greater than a selected value.
Claim 57
Dependent Claim
92 words
A resilient electromagnetic shielding device comprising: a plurality of conductive wire coils canted along a centerline thereof; said coils being interconnected in a manner forming a circular radially resilient gasket; means for preloading said plurality of coils in a manner causing coil spacing along the circumference of adjoining coils to be less along a seal-load portion thereof than along other coil portions on the circumference of adjoining coils, said coil spacing along the seal-load portion being selected to limit the passage of electromagnetic energy with a wavelength greater than a selected value.
Claim 58
Dependent Claim
35 words
The resilient electromagnetic shielding device according to claim 53 wherein the means for preloading comprises means defining a groove and said means compressing said circular radially resilient gasket comprises a wedge disposed in said groove.
Claim 59
Dependent Claim
26 words
The resilient electromagnetic shielding device according to claim 54 wherein said wedge is disposed in a fashion enabling movement thereof with the coils upon loading thereof.
Claim 60
Dependent Claim
14 words
The resilient electromagnetic shielding device according to claim 50 wherein said wedge is fixed.
Claim 61
Dependent Claim
80 words
A resilient electromagnetic shielding device comprising: a plurality of conductive wire coils canted along a centerline thereof, said coils being interconnected in a manner forming a circular radially resilient gasket; means for preloading said plurality of coils in a manner causing adjoining coils to abutt one another only along a seal-load portion on the circumference thereof to provide shielding against the passage of electromagnetic energy, other coil portions on the circumference of adjoining coils remaining in a spaced apart relationship.
Claim 62
Dependent Claim
80 words
A resilient electromagnetic shielding device comprising: a plurality of conductive wire coils canted along a centerline thereof, said coils being interconnected in a manner forming a circular radially resilient gasket; means for preloading said plurality of coils in a manner causing adjoining coils to abutt one another only along a seal-load portion on the circumference thereof to provide shielding against the passage of electromagnetic energy, other coil portions on the circumference of adjoining coils remaining in a spaced apart relationship.
Claim 63
Dependent Claim
39 words
The resilient electromagnetic shielding device according to claim 57 wherein the means for preloading comprises means defining a groove and wedge means, disposed in said groove, for deflecting the plurality of conductive wire coils along a miner axis thereof.
Claim 64
Dependent Claim
26 words
The resilient electromagnetic shielding device according to claim 58 wherein said wedge is disposed in a fashion enabling movement thereof with the coils upon loading thereof.
Claim 65
Dependent Claim
90 words
A resilient electromagnetic shielding device comprising: a plurality of conductive wire coils canted along a centerline thereof, and having a major and a minor axis with respect thereto; means for loading said plurality of coils in a manner causing coil spacing along the circumference of adjoining coils to be less along a seal-load portion thereof than along other coil portion on the circumference of adjoining coils, said coil spacing along the seal-load portion being selected to limit the passage of electromagnetic energy with a wavelength greater than a selected value.
Claim 66
Dependent Claim
90 words
A resilient electromagnetic shielding device comprising: a plurality of conductive wire coils canted along a centerline thereof, and having a major and a minor axis with respect thereto; means for loading said plurality of coils in a manner causing coil spacing along the circumference of adjoining coils to be less along a seal-load portion thereof than along other coil portion on the circumference of adjoining coils, said coil spacing along the seal-load portion being selected to limit the passage of electromagnetic energy with a wavelength greater than a selected value.
Claim 67
Dependent Claim
78 words
A resilient electromagnetic shielding device comprising: a plurality of conductive wire coils canted along a centerline thereof, and having a major and a minor axis with respect thereto; means for loading said plurality of coils in a manner causing adjoining coils to abutt one another only along a seal-load portion on the circumference thereof to provide shield against the passage of electromagnetic energy, other coil portions on the circumference of adjoining coils remaining in a spaced apart relationship.
Claim 68
Dependent Claim
78 words
A resilient electromagnetic shielding device comprising: a plurality of conductive wire coils canted along a centerline thereof, and having a major and a minor axis with respect thereto; means for loading said plurality of coils in a manner causing adjoining coils to abutt one another only along a seal-load portion on the circumference thereof to provide shield against the passage of electromagnetic energy, other coil portions on the circumference of adjoining coils remaining in a spaced apart relationship.
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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) | 1994-12-09 | 1995-06-10 | 1995-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-12-09 | 1999-06-10 | 1999-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-12-09 | 2003-06-10 | 2003-12-10 | $7700.00 | Window Closed / Lapsed |