Geometrical instruments
Patent
1980-03-06
1983-01-18
McGlynn, Joseph H.
Geometrical instruments
179 96, H01R 1718
Patent
active
043689418
ABSTRACT:
A jack frame for an electrical jack of the type having a plurality of jack springs and adapted for side-by-side mounting in an electrical jack panel. One embodiment includes a single piece of jack frame material bent into the desired configuration. A second embodiment includes a frame which is die cast in a single casting operation. The frames of both embodiments have improved rigidity and consistency.
REFERENCES:
patent: D143308 (1945-12-01), Haigh et al.
patent: 1718280 (1929-06-01), Edwards
patent: 2520158 (1950-08-01), Lomholt
patent: 3784962 (1974-01-01), Byrd
patent: 3822415 (1974-07-01), Deitch
Magnetic Controls Company
McGlynn Joseph H.
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