Ventilation – Means combined with window – With air pump
Patent
1993-08-11
1994-03-29
Kwon, John T.
Ventilation
Means combined with window
With air pump
F24F 7013
Patent
active
052979911
ABSTRACT:
A combination portable electric floor and window fan is provided with louvered front and rear walls, end walls, a top surface having an upwardly-directed fixed-width V-shaped channel for receiving the lower portion of a frame or sash of a window when window-mounted, and bottom surfaces from which an elongate runner extends downwardly for engaging a window sill. The width and angle of the V-shaped channel accommodates window frames or sash of different thicknesses. The upper portions or legs of the V-shaped channel form handles for lifting and transporting the fan. Pivotally-mounted feet are confined totally within the sides of the runner when the runner is capable of sole bottom support of the fan on an outside portion of a window sill. The feet may be pivoted perpendicularly relative to the runner and the front and rear walls to support the fan either on a floor or by hooking onto an inside portion of a window sill. The runner and V-shaped channel are symmetrical about a common plane extending essentially parallel to and midway between the front and rear walls.
REFERENCES:
patent: D286673 (1986-11-01), Kahn
patent: D325432 (1992-04-01), Cook
patent: 2547189 (1947-09-01), Welch, Sr.
patent: 2661895 (1953-12-01), Frick
patent: 2759412 (1952-11-01), Knapp
patent: 2985092 (1961-05-01), Gamache
patent: 4773310 (1988-09-01), Corwin
patent: 5110263 (1992-05-01), Chiu
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Advertisement HAWF-2080 published by Holmes Products Corporation, copyright 1990.
Advertisement HAWF-1009 published by Holmes Products Corporation 1992 (copyright dated 1993).
Photographs depicting fan marketed by Duracraft Corporation, Sudbury, Mass. #DW-612; #DW-627.
Advertisement Marvin 2000 published by The W. B. Marvin Manufacturing Company--Sep. 1990.
Advertisement HAWF-3030 published by Holmes Products Corporation 1992.
Brochure titled "Compact Twin Portable Window Fan" Marvin 3000 published by W. B. Marvin Mfg. Co., Oct. 1992.
Copending design patent application Ser. No. 07/929,809 filed on Aug. 13, 1992.
Owner's manual titled "Twin Window Fan" for Model #DW-627 published 1992 by Duracraft Corporation.
Dybvig Roger S.
Kwon John T.
The W. B. Marvin Manufacturing Company
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