Electricity: conductors and insulators – Underground – Distributing and/or combined with overhead
Patent
1991-09-25
1993-11-02
Picard, Leo P.
Electricity: conductors and insulators
Underground
Distributing and/or combined with overhead
174 37, 174 39, 52 19, 52 20, 52 21, 52100, 522201, H02G 910, E02D 2900
Patent
active
052585727
ABSTRACT:
A distributing box for laying a cable duct is dealt with in the construction field so that, after laying the cable duct, the box is sealed with mortar and then buried in the ground. Accordingly, the distributing box should desirably be set up in the construction field with ease. Underground water must not permeate the distributing box which has been buried in the ground. In the present invention, therefore, a distributing adapter which is mounted in the wall of a concrete box is constructed of a case which has a back plate, a partition wall which divides the interior of the case into a plurality of areas, a flange which is formed at the periphery of the case, and marks for drilling positions, which are put on the rear surface of the back plate.
REFERENCES:
patent: 1793038 (1931-02-01), Zimmermann
patent: 3129396 (1964-04-01), Germain et al.
patent: 3263378 (1966-08-01), Dorris
patent: 3731448 (1973-05-01), Leo
patent: 4607469 (1986-08-01), Harrison
patent: 4732397 (1988-03-01), Gavin
Kawanabe Masakazu
Ozeki Shotaro
Morrison Thomas R.
Picard Leo P.
Saito Denki Sangyo Co., Ltd.
Sough Hyung S.
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