Electricity: electrothermally or thermally actuated switches – Electrothermally actuated switches – Fusible element actuated
Patent
1977-04-25
1978-12-26
Harris, George
Electricity: electrothermally or thermally actuated switches
Electrothermally actuated switches
Fusible element actuated
337295, H01H 8522
Patent
active
041318692
ABSTRACT:
A plug-in fuse element comprises a one-piece plate-like body of fuse metal which forms parallel terminal blade portions having current-carrying extensions connected by a fuse link portion. For high current rated fuses, the fuse link portion extends between the current-carrying extensions at points much closer to the terminal blade portions than to the outer ends of the current-carrying extensions. An insulating body, preferably forming a housing, is rigidly anchored between the current-carrying extensions. The insulating body is preferably staked to the current-carrying extensions of the plug-in fuse element, there being anchoring apertures provided in the current-carrying extensions for the staking projections produced thereby. The anchoring apertures are located in the current-carrying extensions beyond the point where the fuse link portion joins the current-carrying extensions. For the lowest current rated fuses, the fuse link is provided with a repeatedly undulating configuration and joins the current-carrying extensions as far away as practical from the terminal blade ends of the current-carrying extensions.
REFERENCES:
patent: 3717836 (1973-02-01), Humphreys
patent: 3775724 (1973-11-01), Mainrick et al.
Aryamane Avinash
Schmidt, Jr. John
Harris George
Littelfuse Inc.
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