US3585448A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shockless-type static eliminator with semiconductive coupling
Assignee: Simco Co Inc
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Filing: 1968-08-14
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Granted: 1971-06-15
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Expires: 1988-08-14
Abstract
Abstract A shockless-type static eliminator in which a semiconductive sheath is employed to support and capacitatively couple a plurality of spaced conductive discharge points to a conductive member having an alternating current high voltage connected thereto. The semiconductive sheath acts as a high resistance series element between adjacent discharge points but at the same time is sufficiently conductive to function as a condenser plate when insulated from the high voltage conductive member by a suitable dielectric.
Inventors
- 👤 Dolph Simons
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 03:54
CPC Classifications
H; H05; H05F; H05F3/00; H05F3/04
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
19 words
The apparatus of claim 1 wherein said first conductive member is a wire and said semiconductive member is tubular.
Claim 2
Dependent Claim
19 words
The apparatus of claim 1 wherein said semiconductive member has a resistivity in the range of 109 ohm centimeters.
Claim 3
Dependent Claim
22 words
The apparatus of claim 1 wherein said dielectric comprises a flexible insulation over said first conductor to define a flexible wire cable.
Claim 4
Dependent Claim
21 words
The apparatus of claim 4 wherein said semiconductive member is tubular in configuration and coaxially supported about the flexible wire cable.
Claim 5
Dependent Claim
17 words
The apparatus of claim 5 wherein said discharge points are longitudinally spaced along said tubular semiconductive member.
Claim 6
Dependent Claim
15 words
The apparatus of claim 6 wherein said discharge points are embedded in said semiconductive member.
Claim 7
Dependent Claim
23 words
The apparatus of claim 7 wherein said discharge points constitute needles having bases flush with the interior surface of said tubular semiconductive member.
Claim 8
Dependent Claim
14 words
The apparatus of claim 7 wherein said points radially project in a single plane.
Claim 9
Dependent Claim
24 words
The apparatus of claim 9 wherein said second conductive member comprises a tubular member having longitudinally spaced apertures coaxially disposed about the respective points.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-06-14 | 1974-12-14 | 1975-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-14 | 1978-12-14 | 1979-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-14 | 1982-12-14 | 1983-06-15 | $7700.00 | Window Closed / Lapsed |