Geometrical instruments
Patent
1977-05-09
1978-06-13
Abrams, Neil
Geometrical instruments
H01R 1344
Patent
active
040945693
ABSTRACT:
There is disclosed a safety electrical outlet such as a cube tap that is provided with sliding protective plates which overlie the prong-receiving slots of the outlet and are spring-biased to offset positions obstructing direct access to the receiving slots. The invention comprises an improvement over prior constructions in that a single resilient spring is employed to bias a pair of adjacent protective plates thereby greatly facilitating the assembly and reducing manufacturing costs. Additionally, the resilient spring is a spring of simple, bowed configuration which can be quickly and easily inserted in the supporting structure.
REFERENCES:
patent: 2477803 (1949-08-01), Huber
patent: 3980371 (1976-09-01), Kahn et al.
Abrams Neil
Pacific Electricord Company
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