Electricity: conductors and insulators – Underground
Patent
1980-05-02
1982-08-24
Askin, Laramie E.
Electricity: conductors and insulators
Underground
174 59, 422 43, H02G 910
Patent
active
043462545
ABSTRACT:
An electrical current of potential is fed to or measured in test leads associated with underground piping, casings and the like through the use of a cathodic test station for flushing mounting in the ground. The test station includes a hollow cylindrical housing having a flanged upper end and an implanted lower end receiving test leads and anchored in the ground by a bar extending therethrough and by ribs projecting radially from the outer surface of the housing. A carrier forms an airtight pocket within side walls projecting from a solid end wall having a flange extending outwardly for recessed support on a shelf in the flanged upper end of the housing. A clamp within the airtight pocket of the carrier supports a terminal block. In one form, the clamp is produced by protrusions from the side wall of the carrier and in another form, a clip extends across the face of the end wall of the carrier. Ends of the clip are spaced from the end wall to support a mounting wall of a terminal block member. The mounting wall has a configuration to pass beyond the protrusions or ends of the clip so that rotation of the terminal block member moves an inclined support surface into a tightly-fitting engagement between the end wall and the protrusions or clip. Entrapped air in the airtight pocket of the carrier prevents ingress of water. A fastener releasably secures the carrier to the housing. A strip of oil impregnated felt, sponge rubber or foamed plastic is used to release oil to suppress vaporization and condensation of subsurface water.
REFERENCES:
patent: 543613 (1895-07-01), Cummings
patent: 3055970 (1962-09-01), Handley
patent: 3127235 (1964-03-01), Benzel
patent: 3466379 (1969-09-01), Lohman
patent: 3466380 (1969-09-01), Baumgartner et al.
patent: 3482030 (1969-12-01), Wisniewski
patent: 3595983 (1971-07-01), Muller et al.
Borin Frank W.
Thomas Jeffrey G.
Askin Laramie E.
Murray Thomas H.
Poff Clifford A.
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