Air freshening device

Gas separation – With nonliquid cleaning means for separating media – Solid agent cleaning member movingly contacts apparatus

Patent

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Details

55472, 239 57, 239 59, 261 24, 261 52, 261102, 261104, 261DIG65, 422124, B01F 304

Patent

active

043773990

ABSTRACT:
Disclosed herein is an air freshening device comprising an upright housing including, adjacent the bottom thereof, an air inlet and, adjacent the top thereof, an air discharge, a fan in said housing intermediate the air inlet and the air discharge means for causing air flow through the housing, a filter, structure for removably supporting the filter in the housing intermediate the air inlet and the fan in the path of the totality of the air flow through the housing, a sleeve assembly within the housing for introducing into the air flow downstream of the filter a substance to be dispensed, which sleeve assembly is operable to releasably support the filter and includes relatively rotatable inner and outer sleeves, one of the sleeves defining an interior chamber, openings in the sleeves for affording valved access to the interior chamber in response to relative rotation between the sleeves, a coupling for releasably connecting the sleeve assembly and the housing, and a package of the substance to be dispensed located in the interior chamber.

REFERENCES:
patent: 2038071 (1936-04-01), Wilhelm
patent: 3722182 (1973-03-01), Gilbertson
patent: 3785556 (1974-01-01), Watkins
patent: 3790081 (1974-02-01), Thornton et al.
patent: 3885737 (1975-05-01), Watkins
patent: 3923934 (1975-12-01), Watkins
patent: 3936283 (1976-02-01), Solis
patent: 4064203 (1977-12-01), Cox
patent: 4096994 (1978-06-01), Bryson
patent: 4154251 (1979-05-01), Doyel
patent: 4252547 (1981-02-01), Johnson
patent: 4268285 (1981-05-01), Mason
patent: 4272261 (1981-06-01), Lynch, Jr. et al.

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