Grating and dust-filter unit for closing the ventilating hole of

Details Grating and dust-filter unit for closing the ventilating hole of Grating and dust-filter unit for closing the ventilating hole of

1990-05-07

1991-04-16

Nozick, Bernard

Gas separation

With means securing or retaining separating media

Unit or cohesive sheet-like media in flow line or frame

55509, 360 9702, B01D 4610

Patent

active

050079468

ABSTRACT:
A grating is fastened to the housing of a computer by threaded nuts and screws, having a truncated-cone head and passing through holes made on the grating, on the housing, and on the frame of an aspirator, as well as through truncated-cone shaped bushings, which are provided with extensions turned towards the center of the grating, so to remain below a portion of a metal net placed over the screws and kept in place by a cover snap-locked to the grating, so that the net is electrically connected with the housing.
If the frame of the aspirator is made of plastic material, then an electric connector, is linked to one of the screw or nut, with a conductor connector with the housing.

REFERENCES:
patent: 3546359 (1970-12-01), Ciccarelli, W. et al.
patent: 4334899 (1982-06-01), McConnell
patent: 4781526 (1988-11-01), Mead

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