Electricity: electrical systems and devices – Safety and protection of systems and devices – Circuit interruption by thermal sensing
Patent
1980-08-15
1982-06-01
Moose, Jr., Harry E.
Electricity: electrical systems and devices
Safety and protection of systems and devices
Circuit interruption by thermal sensing
361119, H02H 8544
Patent
active
043331211
ABSTRACT:
Apparatus for the electrical protection of communication circuits includes an insulative base (e.g., 13) having a line terminal (e.g., 3) and a station terminal (e.g., 1). A fuse wire (e.g., 2) is enclosed within a cavity (e.g., 21) within the base (e.g., 13). The fuse wire (e.g., 2) is connected in series between the line terminal (e.g., 3) and the station terminal (e.g., 1). The cavity (e.g., 21) is filled with an arc-extinguishing material (e.g., 22) to prevent a power arc when the fuse wire (e.g., 2) melts.
REFERENCES:
patent: 1862317 (1932-06-01), Ringwald
patent: 2600407 (1952-06-01), Kelsay
patent: 3281555 (1966-10-01), Fister
patent: 3448341 (1969-06-01), Casey
patent: 3600634 (1971-08-01), Muench, Jr.
patent: 3760227 (1973-09-01), Poindexter
patent: 3929660 (1975-12-01), Khalid
Bell Telephone Laboratories Incorporated
Cubert Jack S.
Moose Jr. Harry E.
Olsen Kurt C.
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