Electricity: electrothermally or thermally actuated switches – Electrothermally actuated switches – Fusible element actuated
Patent
1984-08-17
1986-04-01
Broome, Harold
Electricity: electrothermally or thermally actuated switches
Electrothermally actuated switches
Fusible element actuated
29623, 337198, H01H 8522, H01H 6902
Patent
active
045801240
ABSTRACT:
A plug-in fuse assembly comprises a housing made of insulating material and having relatively closely spaced vertical side walls bridged by vertical end walls and a metal plug-in fuse element having laterally spaced, generally parallel confronting terminals at the bottom thereof projecting downwardly from the bottom of said housing and upwardly extending current-carrying extensions of said terminals and a unique S-shaped fuse link extending between said current-carrying extensions. The current-carrying extensions have upper vertical outer margins which are inwardly offset from a given point to the tops thereof with respect to the corresponding vertical outer margins of the plug-in fuse element below the same, to provide clearance spaces for the downward passage of the vertical end walls of the housing, so that the overall width of the fuse is not significantly increased, if at all, by the housing end walls. The housing side walls are preferably staked into oval-shaped apertures in the current-carrying extensions which are provided with laterally inwardly projecting portions opposite these apertures, to increase the cross-sectional area of the current-carrying extension at these points.
REFERENCES:
patent: 4023265 (1977-05-01), Aryamane
patent: 4099320 (1978-07-01), Schmidt, Jr. et al.
Arnold Stephen R.
Broome Harold
Hattis Russell E.
Littelfuse Inc.
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