Geometrical instruments
Patent
1979-10-30
1981-05-19
McQuade, John
Geometrical instruments
337194, 337211, 339150F, H01H 8522
Patent
active
042681065
ABSTRACT:
A fuse holder assembly for a cartridge type fuse includes an elongated fuse carrier bar having a cylindrical opening in a fuse containment portion for loosely accepting the fuse therein. The fuse contacts include a conductive spring at the inward end of the assembly and a generally U-shaped spring fuse clip member at the outward end. The assembly includes a recess at its inward end to accept an end of the fuse carrier bar and when the carrier bar is inserted in the recess the inward end of the fuse is brought into contact with the spring. The fuse carrier bar is then pivoted to cause the outward end of the fuse to be captured by the fuse clip. To remove a fuse, the fuse carrier bar is pivoted to pull the fuse out of contact with the fuse clip and the fuse carrier bar is then removed by being pulled outward from the assembly. To insure that only the proper size fuse is placed in circuit, a unique spacing is provided between the spring contact and the fuse clip in the location reserved for that size fuse.
REFERENCES:
patent: 1469439 (1923-10-01), Liversidge
patent: 2239903 (1941-04-01), Schultz
patent: 3194926 (1965-07-01), Ustin
patent: 3406365 (1968-10-01), LaMeyre
patent: 3418615 (1968-12-01), Canney
patent: 3590320 (1971-06-01), Conroi
patent: 3659252 (1972-04-01), Brown
patent: 3936787 (1976-02-01), Ranzanigo
patent: 3976967 (1976-08-01), Magherini
patent: 4010437 (1977-03-01), Macemon et al.
Bell Edward L.
Davis David L.
McQuade John
Smith Robert E.
The Singer Company
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