US4494520A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sheathing system for automotive or marine ignition wires
Assignee: Magnum Shielding Corp
•
Filing: 1983-01-19
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Granted: 1985-01-22
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Expires: 2003-01-19
Abstract
Abstract Automotive or marine ignition wires have braided metallic sheaths extending along their lengths and terminating at an electrically insulating distance from end regions of the wires. A metal bar strip bearing metal spring clips sized for resiliently gripping the sheaths has the clips uniformly spaced from each other along the length of the bar. A ground wire secures the bar to ground for electrically grounding the bar strip, the spring clips, and sheaths. Sleeve ferrules encircle and secure the ends of the sheathing to each wire so that the sheathing cannot move axially of the wires.
Inventors
- 👤 Scott L. Hurwitz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 13:25
CPC Classifications
H; H01; H01R; H01R9/00; H01R9/03; H01R9/05; H01R9/0503; H01R4/00; H01R4/58; H01R4/64; H01R4/646; H01R9/0512
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
208 words
A system of organizing and grounding a set of ignition wires covered with braided metallic sheaths terminating at an electrically insulating distance from terminal end regions of said wires, which when installed on an engine are spread apart from each other to attach to spark plugs at one terminal end region and to an electrical input at another terminal end region, said system comprising: a. an organizer strip formed of electrically conductive material; b. said organizer strip extending longitudinally far enough to span a transverse distance across a plurality of said wires; c. means for securing said plurality of sheathed ignition wires in parallel positions on said strip so that said organizer strip forms an electrical common between said sheaths of the secured ignition wires; d. said organizer strip being secured to mid-regions of said sheaths in a location that can vary between ends of said sheaths; e. said organizer strip having no fixed connection other than to said sheaths so that said organizer strip is movable with said sheathed ignition wires throughout a limited range of movement; f. a flexible ground wire having an end termination connectable to ground; and g. said flexible wire being arranged for providing an electrical path from said electrical common to ground.
Claim 2
Independent Claim
208 words
A system of organizing and grounding a set of ignition wires covered with braided metallic sheaths terminating at an electrically insulating distance from terminal end regions of said wires, which when installed on an engine are spread apart from each other to attach to spark plugs at one terminal end region and to an electrical input at another terminal end region, said system comprising: a. an organizer strip formed of electrically conductive material; b. said organizer strip extending longitudinally far enough to span a transverse distance across a plurality of said wires; c. means for securing said plurality of sheathed ignition wires in parallel positions on said strip so that said organizer strip forms an electrical common between said sheaths of the secured ignition wires; d. said organizer strip being secured to mid-regions of said sheaths in a location that can vary between ends of said sheaths; e. said organizer strip having no fixed connection other than to said sheaths so that said organizer strip is movable with said sheathed ignition wires throughout a limited range of movement; f. a flexible ground wire having an end termination connectable to ground; and g. said flexible wire being arranged for providing an electrical path from said electrical common to ground.
Claim 3
Dependent Claim
16 words
The system of claim 1 including radially compressed ferrules overlying and concealing ends of said sheaths.
Claim 4
Dependent Claim
24 words
The system of claim 2 including a wrapper of a thin flat adhesive tape arranged over each of said sheath ends underneath said ferrules.
Claim 5
Independent Claim
24 words
The system of c1aim 1 wherein said means for securing includes resilient means for gripping said sheaths of each of said secured ignition wires.
Claim 6
Independent Claim
24 words
The system of c1aim 1 wherein said means for securing includes resilient means for gripping said sheaths of each of said secured ignition wires.
Claim 7
Dependent Claim
16 words
The system of claim 4 including radially compressed ferrules overlying and concealing ends of said sheaths.
Claim 8
Dependent Claim
24 words
The system of claim 5 including a wrapper of a thin flat adhesive tape arranged over each of said sheath ends underneath said ferrules.
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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) | 1988-01-22 | 1988-07-23 | 1989-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-01-22 | 1992-07-23 | 1993-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-01-22 | 1996-07-23 | 1997-01-22 | $7700.00 | Window Closed / Lapsed |