Electricity: conductors and insulators – Overhead – Towers – poles or posts
Patent
1993-04-19
1995-06-06
Picard, Leo P.
Electricity: conductors and insulators
Overhead
Towers, poles or posts
174 67, H02G 322
Patent
active
054224349
ABSTRACT:
A floor box wiring fitting incorporating a novel carpet flange possessing a self-closing flap cover assembly, whereby the fitting is adapted to be cast into a concrete floor of a building for the conductance of electrical power or telecommunication signals between the work spaces of buildings. The self-closing action of the flap covers which are hingedly connected to the flap cover plate structure, the latter of which consists of a carpet flange, is essentially implemented through an angular operative contacting relationship between the wall surfaces of the openings receiving the hinging portion of the flap covers and the contiguous or adjacent wall surface of the flap cover which, in effect, will inhibit the flap covers from being opened or swing upwardly from a closed horizontal position to an acute opening angle greater than about 85.degree.. This acute maximum opening angle measured from the horizontal upper surface of the carpet flange will cause the flap covers to be downwardly closed, in the absence of any plug connectors or receptacles being inserted through the carpet flange, under the action of their own weight or gravity. Also included is novel structure for staking hinge connections of the flap covers in place, and structure for latchingly engaging the flap covers in their closed positions.
REFERENCES:
patent: 4443654 (1984-04-01), Flachbarth et al.
patent: 4770643 (1988-09-01), Castellani et al.
patent: 4827080 (1989-05-01), Castellani et al.
patent: 4864078 (1989-09-01), Bowman
patent: 5032690 (1991-07-01), Bloom
patent: 5064969 (1991-11-01), Bloom
patent: 5107072 (1992-04-01), Morgan
Boteler William C.
DeLash Francis M.
Wuertz Emil S.
'Hubbell Incorporated
Picard Leo P.
Presser Leopold
Presson Jerry M.
Tone David A.
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