Underground junction boxes

Details Underground junction boxes Underground junction boxes

1989-03-23

1991-12-17

Moy, Joseph Man-Fu

Receptacles

Outlet or junction box type

Wall, floor, or panel mounted

220 37, 220 394, 220 402, 220 403, 220 8, B65D 8710

Patent

active

050728466

ABSTRACT:
An underground junction box for cables, etc. includes a main body 10 and a head portion 20 with a sleeve 21 which slides within a throat 11 of the main body. Main body 10 is mounted on a concrete base in a hole and both parts are invested with earth or concrete, the top rim 25 of the head portion being level with the ground surface and a cover resting on seat 23. If the lower surface level is changed, the head portion is removed and reset, with an extra fillet of concrete to raise it or fins 27 are cut back to lower it. The main body has a flare 13. A set of boxes may be made with the wide end of the main body of each matching the narrow end of the main body of the next one up in size.

REFERENCES:
patent: 3179278 (1965-04-01), Cohen
patent: 3662918 (1972-05-01), Crawford et al.
patent: 3674169 (1972-07-01), Miller
patent: 4230234 (1980-10-01), Taylor
patent: 4527708 (1985-07-01), Dundas et al.

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