Receptacles – Outlet or junction box type – With closure
Patent
1976-09-29
1977-05-17
Hall, George T.
Receptacles
Outlet or junction box type
With closure
220287, 220327, 166 75R, 174 81, 138 89, H02G 308
Patent
active
040236994
ABSTRACT:
A cap assembly for capping the upper ends of well casings of various diameters and associated electrical conduit and providing electrical cable passage therethrough from the conduit into the casing. The cap assembly has an electrical conduit adapter and a cap member with a main dome portion defining a casing chamber of generally circular cross-section and a dome extension portion defining an adapter chamber. The main dome and dome extension portions of the cap member have a stepped series of annular downwardly facing bearing lands of progressively smaller diameter formed therein about the periphery of the chambers for selective seating on the upper end of various sized well casings. The bearing lands have substantially straight sections converging away from the casing chamber. The adapter has an outer taper complimentary to the convergence of the straight sections of the bearing lands for selective seating of the bearing land sections on the adapter. The same selected one of the bearing lands in said cap member is engaged on both the well casing and the adapter. The adapter also has a lip portion with a bearing land segment engaged over the upper end of the well casing. Set screws clamp the cap member and adapter together on the well casing and electrical conduit.
REFERENCES:
patent: 3035732 (1962-05-01), Baker
patent: 3473573 (1969-10-01), Baker et al.
patent: 3606074 (1969-07-01), Hayes
Baker Manufacturing Company
Engstrom Harry C.
Hall George T.
Long Theodore J.
Winter John M.
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