Electrical resistors – Resistance value responsive to a condition – Current and/or voltage
Patent
1990-11-28
1992-10-06
Lateef, Marvin M.
Electrical resistors
Resistance value responsive to a condition
Current and/or voltage
338226, 338234, 338276, 338318, 361106, H01C 710, H01C 1014
Patent
active
051535556
ABSTRACT:
There is disclosed an electronic device comprising a plate-shaped electronic element having electrode films. The electronic element is elastically supported by spring members in an electrically insulating case so as to be respectively in contact with the electrode films. Each spring member includes supporting plates opposing to the electrode films and spring pieces for being respectively in contact with the electrode films at contact points thereof. Each spring piece is formed integrally with the supporting plate so as to be extended with a curvature toward the electrode film from one end of the supporting plate in the longitudinal direction thereof to the contact point, to be folded by a predetermined angle at the contact point, and to be further extended toward the supporting plate from the contact point without contact with the supporting plate. Further, each spring piece has a predetermined thickness and a predetermined width so as to be cut when a current flowing in the spring pieces through the electronic element becomes larger than a predetermined threshold current in an abnormal state of the electronic element.
REFERENCES:
patent: 3750082 (1973-07-01), Petersen et al.
patent: 3842188 (1974-10-01), Petersen
patent: 3988709 (1976-10-01), McKinnon et al.
patent: 4241370 (1980-12-01), De Fillipis et al.
patent: 4635026 (1987-01-01), Takeuchi
Enomoto Hisao
Katsuki Takayo
Lateef Marvin M.
Murata Manufacturing Co. Ltd.
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