US5751534A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coaxial cable surge protector
Assignee: Commscope Inc of North Carolina
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Filing: 1996-05-29
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Granted: 1998-05-12
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Expires: 2016-05-29
Abstract
Abstract The invention is a surge protector which can provide voltage and current protection in coaxial cable systems. The protector includes a central conductor which is coupled in series with a variable resistance, and a voltage surge arrestor which is coupled between the conductor and the housing of the protector. A capacitor may also be coupled in parallel with the resistor. The protector provides both an ac and dc signal path.
Inventors
- 👤 George Andrew DeBalko
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 10:27
CPC Classifications
H; H01; H01R; H01R24/00; H01R24/38; H01R24/40; H01R24/42; H01R24/48; H01Q; H01Q1/00; H01Q1/50; H01R2103/00
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
101 words
A device which is connectable to a coaxial cable having a center conductor and an outer sheath, said device comprising: a housing; a conductor surrounded by the housing, said conductor extending to at least one end of the housing so that the conductor is connectable to the center conductor of the cable while the housing is connectable to the outer sheath; a voltage surge arrestor coupled between the conductor and the housing; and a variable resistor coupled in series with the conductor within the housing such that the conductor and resistor provide an electrical path for dc signals through the device.
Claim 2
Independent Claim
101 words
A device which is connectable to a coaxial cable having a center conductor and an outer sheath, said device comprising: a housing; a conductor surrounded by the housing, said conductor extending to at least one end of the housing so that the conductor is connectable to the center conductor of the cable while the housing is connectable to the outer sheath; a voltage surge arrestor coupled between the conductor and the housing; and a variable resistor coupled in series with the conductor within the housing such that the conductor and resistor provide an electrical path for dc signals through the device.
Claim 3
Dependent Claim
15 words
The device according to claim 1 wherein the voltage surge arrestor is a gas tube.
Claim 4
Dependent Claim
18 words
The device according to claim 2 wherein the gas tube has a threshold of 150 to 200 volts.
Claim 5
Dependent Claim
15 words
The device according to claim 1 wherein the resistor is a positive temperature coefficient resistor.
Claim 6
Dependent Claim
18 words
The device according to claim 4 wherein the resistor has a current threshold of at least 150 milliamps.
Claim 7
Dependent Claim
27 words
The device according to claim 1 further comprising a capacitor coupled in parallel with the resistor so as to provide a low impedance path for ac signals.
Claim 8
Dependent Claim
25 words
The device according to claim 1 wherein the housing includes two opposite ends, each capable of receiving a coaxial connector mounted to a coaxial cable.
Claim 9
Dependent Claim
15 words
The device according to claim 1 wherein the housing is filled with non conductive gel.
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) | 2001-05-11 | 2001-11-10 | 2002-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-05-11 | 2005-11-10 | 2006-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-05-11 | 2009-11-10 | 2010-05-12 | $7700.00 | Window Closed / Lapsed |