Electrical bus duct with torque indication nut

Details Electrical bus duct with torque indication nut Electrical bus duct with torque indication nut

1973-09-14

1977-06-14

Hafer, Robert A.

Geometrical instruments

85 61, F16B 3100, H01R 1360

Patent

active

040293793

ABSTRACT:
A torque indicating nut for use with a complimentary bolt. The bolt and nut assembly is utilized to join sections of electrical bus duct and the electrical conductors contained therein. The torque indicating nut comprises three sections: an engaging section, a driving section and a bridging section. The engaging section is threaded onto the complimentary portion of the previously mentioned bolt and rotated thereon to complete the assembly of adjacent sections of electrical bus duct and the conductors contained therein. When a predetermined value of torque has been reached at the driving section of the torque indicating nut, the bridging section fractures or breaks and falls away.

REFERENCES:
patent: 2824481 (1958-02-01), Johnson
patent: 3027796 (1962-04-01), Shewmon
patent: 3444775 (1969-05-01), Hills
patent: 3459872 (1969-08-01), Weimer et al.
patent: 3512447 (1970-05-01), Vaughn

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