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1. WO1996005639 - PROTECTED TELECOMMUNICATIONS TERMINAL

Publication Number WO/1996/005639
Publication Date 22.02.1996
International Application No. PCT/US1995/009910
International Filing Date 04.08.1995
Chapter 2 Demand Filed 07.03.1996
IPC
H01R 13/66 2006.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
13Details of coupling devices of the kinds covered by groups H01R12/7087
66Structural association with built-in electrical component
H01T 1/14 2006.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
TSPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
1Details of spark gaps
14Means structurally associated with spark gap for protecting it against overload or for disconnecting it in case of failure
H04M 1/74 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
MTELEPHONIC COMMUNICATION
1Substation equipment, e.g. for use by subscribers
738Interface circuits for coupling substations to external telephone lines
74with means for reducing interference; with means for reducing effects due to line faults
H04M 3/18 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
MTELEPHONIC COMMUNICATION
3Automatic or semi-automatic exchanges
18with means for reducing interference; with means for reducing effects due to line faults
CPC
H01R 13/6666
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
13Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
66Structural association with built-in electrical component
665with built-in electronic circuit
6666with built-in overvoltage protection
H01T 1/14
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
TSPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
1Details of spark gaps
14Means structurally associated with spark gap for protecting it against overload or for disconnecting it in case of failure
H04M 1/745
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
MTELEPHONIC COMMUNICATION
1Substation equipment, e.g. for use by subscribers; Analogous equipment at exchanges
738Interface circuits for coupling substations to external telephone lines
74with means for reducing interference; with means for reducing effects due to line faults
745Protection devices or circuits for voltages surges on the line
H04M 3/18
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
MTELEPHONIC COMMUNICATION
3Automatic or semi-automatic exchanges
18with means for reducing interference ; or noise; with means for reducing effects due to line faults ; with means for protecting lines
Applicants
  • RAYCHEM CORPORATION [US/US]; Intellectual Property Law Dept. Mail Stop 120/6600 300 Constitution Drive Menlo Park, CA 94025-1164, US
Inventors
  • BOYER, Charles, Alan; US
  • SIMENDINGER, William, Henry, III; US
Agents
  • ZAHRT, William, D., II ; Raychem Corporation Intellectual Property Law Dept. Mail Stop 120/6600 300 Constitution Drive Menlo Park, CA 94025-1164, US
Priority Data
08/287,37708.08.1994US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) PROTECTED TELECOMMUNICATIONS TERMINAL
(FR) RACCORD TERMINAL PROTEGE POUR TELECOMMUNICATIONS
Abstract
(EN)
A protected telecommunications terminal has signal conductors supported in a terminal housing, and a ground conductor positioned on the housing a small distance from the signal conductors. An electrically non-linear resistive material is located electrically between and in contact with the signal and ground conductors to provide over-voltage electrical protection to the terminal. The electrically non-linear resistive element is prepared from an electrically non-linear composition which comprises a polymeric component and a particulate filler. The composition has an initial resistivity at 25 °C of at least 109 ohm-cm, and is such that a standard device containing the composition has an initial breakdown voltage VSi, and after the standard device has been exposed to a standard impulse breakdown test, the device has a final breakdown voltage VSf which is from 0.7VSi to 1.3VSi. In addition, the composition in the device has a final resistivity rf at 25 °C of at least 109 ohm-cm.
(FR)
Raccord terminal protégé pour télécommunications comportant des conducteurs de transmission des signaux placés dans un boîtier du raccord, et un conducteur de terre placée sur le boîtier à faible distance des conducteurs de transmission des signaux. Un élément fait d'un matériau résistif non linéaire reliant électriquement les conducteurs de terre et de transmission des signaux assure une protection du raccord vis-à-vis des surtensions. Le susdit élément résistif est un composite comportant un composant polymère et un remplissage de particules dont la résistivité initiale est d'au moins 109 ohm-cm à 25 °C et la tension de rupture initiale de VSi, laquelle après que le matériau ait été soumis à un test normalisé de rupture passe à Vsf, Vsf étant compris entre 0,7 Vsi et 1,3 Vsi. Le composite résistif du dispositif présente en outre une résistivité rf d'au moins 109 ohm-cm à 25 °C.
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