Electrically conductive pipe coupling

Details Electrically conductive pipe coupling Electrically conductive pipe coupling

1975-06-19

1976-11-16

Callaghan, Thomas F.

Electricity: conductors and insulators

Conduits, cables or conductors

Combined

151 37, 285 45, 285372, H02G 1502, F16L 2104

Patent

active

039925684

ABSTRACT:
A pipe coupling affording electrical continuity between all coupling components despite dielectric pre-coating of the individual components. For rendering the coupling components electrically conductive as where required for cathodic protection in a buried underground installation, conductive elements extending through and about the gasket effect electrical continuity between the follower, middle ring and contained pipe. At the same time, selectively located protuberances on each bolt are bared and reliably penetrate the coating on one follower while the bolt nut on makeup penetrates the bolt thread coating and the opposite follower to respectively insure their conductive continuity in the assembly.

REFERENCES:
patent: 355112 (1886-12-01), Wrenshall
patent: 1833462 (1931-11-01), Hagist
patent: 1855447 (1932-04-01), Hagstedt
patent: 2250280 (1941-07-01), Starbird
patent: 2562032 (1951-07-01), Gutensohn
patent: 3213187 (1965-10-01), Kish
patent: 3255797 (1966-06-01), Attwood
patent: 3267203 (1966-08-01), Rosenberg
patent: 3838205 (1974-09-01), Kish
Eastern Coupling, drawings 62,057 and 61,907, Dresser Industries, Inc.

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