Brushing – scrubbing – and general cleaning
Patent
1976-04-09
1977-05-10
Britts, Ramon S.
Brushing, scrubbing, and general cleaning
151 37, F16B 3928, F16B 3934
Patent
active
040222624
ABSTRACT:
The sealing locknut is of the type commonly used for securing a conduit to an electrical junction box and is provided with a plurality of angular prongs or teeth about the circumference thereof adapted to bite into the metal of the junction box to obtain a good ground connection. An annular sealing ring of plastic or other suitable material is disposed on the side of the locknut on which the angular teeth project and the internal circumference of the gasket extends radially inwardly so as to resiliently engage the threads of a conduit upon which the locknut is threaded.
REFERENCES:
patent: 2487129 (1949-11-01), Hallock
patent: 2554456 (1951-05-01), Coleman et al.
patent: 3472534 (1969-10-01), Stevens
Britts Ramon S.
Crouse-Hinds Company
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