Particle trapping sheath coupling for enclosed electric bus appa

Details Particle trapping sheath coupling for enclosed electric bus appa Particle trapping sheath coupling for enclosed electric bus appa

1976-01-22

1977-06-14

Grimley, Arthur T.

Electricity: conductors and insulators

With fluids or vacuum

With fluid maintenance or conditioning means

174 13, 174 16B, 174 99E, H01B 900

Patent

active

040298914

ABSTRACT:
A tubular metallic sheath for horizontally disposed enclosed electric bus apparatus includes a corrugated bellows section having at one end a terminal convolution forming in internal annular recess. A sheath portion axially adjacent the recess, which may be a substantially tubular end portion of the bellows, is axially flared toward the annular recess. Within the bellows in coaxial radial spaced relation is mounted a metallic sleeve fixed at one end and axially flared toward a free end which is disposed in radial spaced relation within the oppositely flared adjacent sheath portion. The sleeve serves to shield the corrugated portion electrostatically so that the terminal convolution constitutes an effective particle trap. The bottom surfaces of the sleeve and the sheath portion adjacent its free end provide a stepped passageway for leading loose particles into the trap.

REFERENCES:
patent: 3515939 (1970-06-01), Trump
patent: 3740925 (1973-06-01), Gothard
patent: 3767837 (1973-10-01), Graybill
patent: 3792188 (1974-02-01), Cronin
patent: 3814879 (1974-06-01), Cookson et al.
patent: 3823249 (1974-07-01), Floessel et al.
patent: 3842147 (1974-10-01), Barkan
patent: 3856978 (1974-12-01), Sletten et al.
patent: 3895176 (1975-07-01), Cookson et al.

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