PTC protector for AT&T style 110 block

A current-limiting protector package for use in conjunction with telephone terminal blocks comprises a two-piece interfitting housing which is made up of two housing halves soncially welded together. A pair of tip or ring terminals is disposed within each housing half along with a current-limiting d...

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Bibliographic Details
Main Author FREDERIKSEN; BJARNE
Format Patent
LanguageEnglish
Published 30.07.1996
Edition6
Subjects
BASIC ELECTRIC ELEMENTS
CORONA DEVICES
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
OVERVOLTAGE ARRESTERS USING SPARK GAPS
SPARK GAPS
SPARKING PLUGS
TELEPHONIC COMMUNICATION
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Summary:A current-limiting protector package for use in conjunction with telephone terminal blocks comprises a two-piece interfitting housing which is made up of two housing halves soncially welded together. A pair of tip or ring terminals is disposed within each housing half along with a current-limiting device in the form of a positive-temperature-coefficient (PTC) device of the conductive polymer type. Lower end portions of the tip or ring terminals project outwardly from the housing so as to be capable of electrical engagement with opposed sets of terminals provided upon the telephone terminal block, while upper end portions of the tip or ring terminals project outwardly from the housing so as to be accessible to a line test probe whereby the lines or circuits of the telephone terminal block can be tested in connection with their operative status without necessitating removal of the protector package from the terminal block.
Bibliography:Application Number: US19940273207