Blocking of return air

Details Blocking of return air Blocking of return air

1991-01-17

1992-04-21

Joyce, Harold

Ventilation

Vehicle

Having inlet airway

454259, B60H 126

Patent

active

051057310

ABSTRACT:
A check valve assembly for the ventilation duct to the passenger space of a motor vehicle comprises an outer housing (3), to which is fastened through at least one clamping connection an inner frame (4). Between the outer housing (3) and inner frame (4) there is clamped at least one check valve element (5) of flexible, soft sheet material. In the rest position, the valve element lies against an oblique grating (11). When air flows, the valve element opens and engages against stays (9). The inner frame (4) is set into the front of the outer housing (3) and the assembled unit comprised of outer housing (3) and closing valve (5) is fastened to a support (2) of the motor vehicle by at least one clip connection (6) arranged on the outer housing (3).

REFERENCES:
patent: 3405968 (1968-10-01), Fetes et al.
patent: 4691623 (1987-09-01), Mizusawa
patent: 4781106 (1988-11-01), Frien

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