Vent assembly with single piece cover

Details Vent assembly with single piece cover Vent assembly with single piece cover

2006-11-28

2006-11-28

Wilson, Gregory (Department: 3749)

Ventilation

Vehicle

Roof structure

C454S117000

Reexamination Certificate

active

07140959

ABSTRACT:
A vent assembly has a base and a single piece cover that is attached to the base to form a housing. A partition inside the housing forms an upper compartment that communicates with an outlet at the rear of the cover and a lower compartment that communicates with an inlet through the base. The compartments communicate via an opening through the partition. The partition provides an exhaust passage from the opening to the outlet at the rear of the cover that has several barriers including dams inhibiting the flow of water from the outlet back to the opening. The partition and cover also provide a drain passage connected to the exhaust passage by several cross passages to drain water accumulated in the exhaust passage. The vent assembly may have two exhaust passages interconnected by a transverse drainage passage and associated with respective drainage passages. The vent assembly may be static or include a fan unit to provide a powered vent assembly. Either may be used as the hatch of a combined vent and escape hatch assembly. In the later case, the cover may be shaped to accommodate an exterior handle and provide drainage to prevent the accumulation of water and formation of ice that could inhibit operation of the exterior handle.

REFERENCES:
patent: 1969935 (1934-08-01), Lintern et al.
patent: 1983979 (1934-12-01), Graham
patent: 2210592 (1940-08-01), Lintern et al.
patent: 2550353 (1951-04-01), Hopfinger
patent: 4433506 (1984-02-01), Manning
patent: 4592269 (1986-06-01), Lamparter
patent: 4895065 (1990-01-01), Lamparter
patent: 4964673 (1990-10-01), Lamparter
patent: 5344361 (1994-09-01), Matthias
patent: 6572182 (2003-06-01), Lamparter et al.

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