Jack

Geometrical instruments

Patent

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Details

339259R, 339255R, H01R 1718

Patent

active

044935269

ABSTRACT:
In a jack in which a movable contact piece mounted therein is displaced by a plug inserted thereinto and a coiled spring for supplementing the resiliency of the movable contact piece is interposed between a movable part of the movable contact piece and the body of the jack, there is disposed a spring holder between the movable part and the body, whereby the coiled spring is held and excessive displacement of the movable part is prevented.

REFERENCES:
patent: 2235545 (1941-03-01), Young
patent: 3002172 (1961-09-01), Lennox
patent: 3126241 (1964-03-01), Papalas
patent: 3180924 (1965-04-01), Rowe
patent: 3277427 (1966-10-01), Jurca
patent: 3286326 (1966-11-01), Klotz
patent: 4040712 (1977-08-01), Dahlstrom

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Profile ID: LFUS-PAI-O-1478857

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