Electricity: electrothermally or thermally actuated switches – Electrothermally actuated switches – Fusible element actuated
Patent
1978-03-13
1979-07-17
Broome, Harold
Electricity: electrothermally or thermally actuated switches
Electrothermally actuated switches
Fusible element actuated
337159, H01H 8512
Patent
active
041617134
ABSTRACT:
A ribbon-type fusible element is subdivided by equidistant points of equally reduced cross-section into a plurality of serially connected fusible element sections. These include first angularly bent fusible element sections comprising two half-sections, second fusible element sections being planar and arranged in spaced relation from the first fusible element sections, a planar support for the second fusible element sections; and third fusible element sections which are angularly bent and conductively interconnect the first and the second fusible element sections. The above planar support includes a portion that extends in a direction longitudinally of the fusible element and transverse arms that are in registry with the second fusible element sections. Fastener means project through said transverse arms and said second fusible element sections. As a result, the sections of the fusible element situated between contiguous fasteners are fixedly supported.
REFERENCES:
patent: 2794097 (1957-05-01), Jacob, Jr.
patent: 2964604 (1960-12-01), Jacob, Jr. et al.
patent: 3113195 (1963-12-01), Kozacka
patent: 3394333 (1968-07-01), Jacob, Jr.
patent: 4125819 (1978-11-01), Jacob, Jr.
Broome Harold
Gould Inc.
Salzer Erwin
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