Automatically released air inlet filter

Details Automatically released air inlet filter Automatically released air inlet filter

1992-09-01

1993-10-19

Joyce, Harold

Ventilation

Vehicle

Having inlet airway

55309, 454158, B60H 306

Patent

active

052540332

ABSTRACT:
In an automotive heating and/or cooling system, an air inlet leads to plenum which contains a filter held horizontally by a hinge at one side and by a spring latch at the other side to filter the incoming air flow. The spring latch has a limited holding force so that if the filter becomes clogged the force of the air flow through the filter is sufficient to overcome the spring latch and the filter will swing open to a bypass position. The incoming air will then enter the system without filtering.

REFERENCES:
patent: 1914667 (1933-06-01), Kolla
patent: 2185486 (1940-01-01), Wahlberg
patent: 2992701 (1961-07-01), White
patent: 4312645 (1982-01-01), Mavros et al.
patent: 4597323 (1986-07-01), Mordau et al.
patent: 4625630 (1986-12-01), Carroll et al.
patent: 4671810 (1987-06-01), Dietzsch et al.
patent: 4726823 (1988-01-01), Brice
patent: 4779517 (1988-10-01), Weller

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