Distillation: apparatus – Apparatus – Systems
Reexamination Certificate
1999-03-08
2001-08-28
Manoharan, Virginia (Department: 1764)
Distillation: apparatus
Apparatus
Systems
C165S163000, C202S189000, C202S190000, C203S010000, C203S100000
Reexamination Certificate
active
06280577
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a distiller, and more particularly to comprise an air guiding means mounted between an upper lid and a main body.
2. Description of the Related Art
U.S. Pat. No. 4,342,623, issued to Loeffler, discloses a portable water distiller having an insulated container for raw water and a removable cover for the container wall. A condenser coil is provided in the cover along with a motor-driven fan, and inlet and outlet ports are provided about the periphery of the cover to allow cooling air to be drawn into the cover over the condenser and motor. An inlet tube connected to the condenser coil receives steam from the container generated by a heater connected to the container bottom.
U.S. Pat. No. 4,818,344, issued to Glucksman, discloses a portable water distiller comprising a vaporization chamber containing an electric coil heating element, a finned tube condenser coil, and an electric fan motor for cooling the condenser coil's outer surface. In a preferred embodiment, the vaporization chamber includes an upper vertical tube having an open bottom and closed top communication with the condenser, and a raw water receptacle with its rim surrounding the tube at a distance and with its bottom near the bottom end of the tube. The receptacle of the portable water distiller is automatically kept full with water up to a predetermined level, and is readily removable from the distiller for cleaning of residue, the lower portion of the tube is similarly removable for access to the heating element. The condenser coil is designed to offer low flow resistance resulting in only a small over-pressure in the vaporization chamber thus affecting only a small depression of the water level therein.
However, neither Loeffler nor Glucksman discloses an air guiding means mounted between an upper lid and a main body in that cooling air, entering from air inlet, could be guided to an air outlet to flow fluently without reducing the heat dissipating effect. The present invention intends to provide an air guiding means to mitigates and overcome the above problem.
SUMMARY OF THE INVENTION
The primary object of this invention is to provide a distiller comprising an air guiding means that can guide the cooling air entering from an inlet and dissipating to an outlet so as to increase the heat dissipating effect.
In accordance with the present invention, a distiller comprises a main body comprising a main housing inside which water is heated to generate steam, a condenser through which the steam is passed, a fan for supplying cool air to the condenser, a water output defined in the main body, and a plurality of air inlet defined in an outer periphery of the main housing. The condenser extends helically in the main body and includes a plurality of circular fins on an outer periphery thereof.
An upper lid is mounted on top of the main body and includes a plurality of vents defined in an upper side thereof so as to guide hot air which has passed through the condenser to exit the main body. An air guiding means is securely mounted between the upper lid and the main body. The air guiding means includes a disc with a central opening, an upper tubular member projecting upwardly from an upper side of the disc and having a first through hole communicating with the central opening of central opening of the disc, and a lower tubular member projecting downwardly from a underside of the disc and having a second through hole communicating with the central opening of the disc. Each circular fin of the condenser includes an uppermost central point defined in a peripheral edge thereof, and a circle is defined by the uppermost central points of the circular fins of an upper section of the condenser, and the lower tubular member includes the second through hole defined by an annual lower edge thereof, which lies around the circle. Preferably, the lower tubular member and the upper tubular member are bell-shaped or bowl-shaped so as to guide cooling air to flow fluently.
REFERENCES:
patent: 4342623 (1982-08-01), Loeffler
patent: 4546819 (1985-10-01), O'Connor
patent: 4691766 (1987-09-01), Wurz
patent: 4818344 (1989-04-01), Glucksman
patent: 5110419 (1992-05-01), Weber et al.
patent: 5662779 (1997-09-01), Greene et al.
patent: 5951825 (1999-09-01), Land
Bacon & Thomas PLLC
Manoharan Virginia
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