Electricity: electrical systems and devices – Polarity reversing – Automatic
Patent
1988-02-02
1989-02-14
Envall, Jr., Roy N.
Electricity: electrical systems and devices
Polarity reversing
Automatic
174 521, H02B 102
Patent
active
048050733
ABSTRACT:
A weather and tamper resistant multi-unit cable terminal box construction comprising a support structure for a terminal board adapted to be vertically positioned and mounted on a supporting wall, an enclosure or cover for covering and enclosing the front, top, and sides of said support structure; a hinge for moving said enclosure to open and closed position about a horizontal axis at the top of said support structure, said hinge being assembled by sidewise movement of the enclosure while in raised position along said horizontal axis, the sides of said support structure having spaced flanges for reception of side walls of said enclosure to enhance weather resistance of said box construction, said support structure having a bottom wall portion extending forwardly for slidably mounting cable pass-through plates and including a lock strike beam, said enclosure having a bottom wall portion extending rearwardly to abut said cable pass-through plates in closed position to lock said plates in position, the front wall of said enclosure carrying lock means for engagement with said lock strike beam, and spring biased transversely movable bolts carried by a forwardly extending top wall of said support structure for interlocking engagement with openings in the side walls of said enclosure to retain said enclosure in raised position to provide free access to the terminal board carried by the support structure.
REFERENCES:
patent: 1916219 (1933-07-01), Hush
patent: 2077160 (1937-04-01), Wilson, Jr.
patent: 3752900 (1973-08-01), Harrison et al.
patent: 3808504 (1974-04-01), Rabie
patent: 4246436 (1981-01-01), Hoffman et al.
Johnson Sigurd A.
Knott Howard C.
Pederson Jerry A.
Envall Jr. Roy N.
Plan Hold Corporation
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