Ventilation – Vehicle – Having inlet airway
Patent
1997-07-24
2000-02-01
Joyce, Harold
Ventilation
Vehicle
Having inlet airway
55505, 454158, B60H 306
Patent
active
060196769
DESCRIPTION:
BRIEF SUMMARY
I.) BACKGROUND OF THE INVENTION
1. Field of the Invention
This invention relates generally to air-cleaning devices for use in a motor-vehicle such as for a car, truck, or airplane; and in particular, to air-cleaning devices of a type adapted to clean the air fed through the passenger-compartment or cockpit thereof, via existing air-ducting aperture(s).
2. Description of the Prior Art
It is commonly accepted that motor-vehicle internal-combustion engines must have clean air to operate properly, essentially to avoid costly engine repairs. However, providing clean air for the human occupants of motor-vehicles has been largely ignored, except in a few expensive luxury motorcars. Presently therefore, the average motorist cannot attain the "luxury" of affording such pre-filtered passenger-compartment air; so are constantly exposed en masse to the road-vehicle exhaust-fumes (carbon particulates, carbon-monoxide, hydrocarbons, oxides of nitrogen), rubber-tire dust, and brake-lining fibers (including asbestos). Moreover, mildew and mold tend to cultivate on heat-exchangers of moist air-conditioners or warm heaters, resulting in moldy spores being blown into the passenger-compartment via air outlet-duct apertures. A resulting moldy odor is most noticeable immediately upon activating the heater or air-conditioner's blowers. In addition, the dust, allergens-pollen, and pollutants within the passenger-compartment also get stirred-up by air blown into the passenger-compartment, whereupon it becomes an accumulative process, particularly aggressive within the intimate confines of a passenger-compartment. Furthermore, this adverse situation actually contributes to motorists feeling overly tired and depleted after a long drive on crowded roadways, owing to inhalation of these adverse air contaminants. Hence, a system devised to ameliorate this condition would contribute to a motorist's feeling of well-being, and thus increase automobile safety.
In the past, practically all efforts to cleanse air being discharged into the passenger-compartment have been directed toward placing a filter within the air-inlet or ducting system thereto, as have been patented chronologically per the following:
By Helwit in U.S. Pat. No. 3,941,034 (filed: July 1974), who shows a "filter attachment for automobile passenger-compartment air-intake"; which is essentially a cowl-intake situated OEM(original equipment manufacture) type arrangement, wherein a laminated porous-full-flow paper-filter is interspersed with activated charcoal. Therefore, the filter is positionally incapable of filtering-out contaminants within the ducting-system, nor can it filter-out contaminants recirculating within the vehicle's interior.
By Bach in French Pat. #2,636,013 (filed: February 1989), who shows both a screw-on and a tapered universally fitting dust-filter cartridge, either to be adapted to the passenger-compartment air-induction inlet of a vehicle; therefore still not addressing the need to filter the contaminants prevailing within the existing ducting passageways.
By Arold in U.S. Pat. No. 5,169,356(filed: July 1991, to Mercedes-Benz), who shows a "passenger-compartment air-filter"; which is made to install within an air-duct serving to draw-in stale-air from the passenger-compartment for recirculation, so as to treat secondary conditions of the air prior to it's being reintroduced into the passenger-compartment air/re-entry ducts. However, the system is not retrofitable to aftermarket installation, nor is it ideally situated at the final outlet stage of the air-ducting system.
By Kowalczyk in U.S. Pat. No. 5,192,346 (filed: July 1992), who shows an "air-purifier pleated-filter to stop pollution for passangers inside of a motor-vehicle"; which is again designed to provide a replaceable filtering media staged deep within the ducting-system.
By Gould in U.S. Pat. No. 5,350,444 (filed: April 1993), who shows a "filtered air-intake for a passenger-vehicle"; wherein an air-inlet and filtering-apparatus for the passenger-compartment is located at the cowl area benea
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