Gas cleaning unit
First Claim
1. A unit for cleaning a gas comprising:
- housing means having an inside chamber, a first wall having a gas inlet opening, said first wall including a side wall surrounding the gas inlet opening and projected into the chamber and an inwardly extending lip on the side wall surrounding and directed into the inlet opening, and a second wall having a gas outlet opening, gas filter means located in the gas inlet opening and supported on the lip, said gas filter means including a first fiber filter operable to remove particulate matter from the gas moving through the first filter, and a second filter having a particulate medium operable to remove foreign contaminants from the gas moving through the second filter, said second filter being engageable with said lip, said first filter being located over the second filter adjacent the gas inlet side thereof, said side wall including shoulder means located on opposite portions of the side wall, said shoulder means extended in a direction opposite the inward extension of the lip whereby the gas filter means can be removed from the gas inlet opening, open grid means located over the first filter of the gas filter means, said open grid means having outer peripheral surfaces located in tight fitting relationship with the side wall and portions engageable with said shoulder means to support the open grid means on the first wall, said housing means having a third wall and a bottom wall, said third wall having an opening located above the bottom wall, tank means located in the chamber and movably supported on the bottom wall for storing a liquid, said tank means having an extension located in the opening in the third wall, said tank means being provided with means to close the opening in the third wall and an end wall engageable with the third wall to limit movement of the tank means relative to said third wall, said tank means being movable to a first position to provide access to the tank means from the outside of the housing means and movable from the first position to a second position to close the opening in the third wall with the means to close the opening in the third wall, and means located in the chamber operable to move gas through the gas filter means to remove foreign matter from the gas and discharge cleaned gas from the chamber through the gas outlet opening.
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Accused Products
Abstract
A portable gas cleaning unit having a box-shaped housing supporting filters operable to remove particulates, pollens, odors, and smoke from a gas, as air. A motor driven fan located within the housing moves gas through the filters and discharges cleaned gas to the environment outside of the housing. In one form of the invention, the motor is a D. C. motor powered by a 12-volt battery. The filters are mounted in a recess in the top wall of the housing and include a coarse fiber filter and a particulate charcoal filter. A protective open rectangular grid is located over the fiber filter and is mounted with a tight fit on the top wall to hold the filters in the recess. An open top tank is located within the housing for carrying a liquid, as water. Vapor plates mounted on the tank are used to facilitate the evaporation of liquid into the gas flowing through the housing. The tank has a longitudinal extension adapted to move through an opening in a side wall of the housing to allow liquid to be placed into the tank.
167 Citations
24 Claims
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1. A unit for cleaning a gas comprising:
- housing means having an inside chamber, a first wall having a gas inlet opening, said first wall including a side wall surrounding the gas inlet opening and projected into the chamber and an inwardly extending lip on the side wall surrounding and directed into the inlet opening, and a second wall having a gas outlet opening, gas filter means located in the gas inlet opening and supported on the lip, said gas filter means including a first fiber filter operable to remove particulate matter from the gas moving through the first filter, and a second filter having a particulate medium operable to remove foreign contaminants from the gas moving through the second filter, said second filter being engageable with said lip, said first filter being located over the second filter adjacent the gas inlet side thereof, said side wall including shoulder means located on opposite portions of the side wall, said shoulder means extended in a direction opposite the inward extension of the lip whereby the gas filter means can be removed from the gas inlet opening, open grid means located over the first filter of the gas filter means, said open grid means having outer peripheral surfaces located in tight fitting relationship with the side wall and portions engageable with said shoulder means to support the open grid means on the first wall, said housing means having a third wall and a bottom wall, said third wall having an opening located above the bottom wall, tank means located in the chamber and movably supported on the bottom wall for storing a liquid, said tank means having an extension located in the opening in the third wall, said tank means being provided with means to close the opening in the third wall and an end wall engageable with the third wall to limit movement of the tank means relative to said third wall, said tank means being movable to a first position to provide access to the tank means from the outside of the housing means and movable from the first position to a second position to close the opening in the third wall with the means to close the opening in the third wall, and means located in the chamber operable to move gas through the gas filter means to remove foreign matter from the gas and discharge cleaned gas from the chamber through the gas outlet opening.
- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A unit for cleaning a gas comprising:
- housing means having an inside chamber, a first wall having a gas inlet opening and a second wall having a gas outlet opening, gas filter means located over the gas inlet opening and mounted on the first wall, means located in the chamber operable to move gas through the filter means to remove foreign matter from the gas and discharge clean gas from the chamber through the gas outlet opening, and tank means located in the chamber for carrying a liquid, and means associated with the tank means for carrying liquid to increase the moisture content of the gas flowing through the chamber, said housing means having a side wall having an opening, said tank means having an extension located in said opening, said tank means being provided with means to close the opening in said side wall and means engageable with said side wall to limit movement of the tank means relative to said side wall, said tank means being movable to a first position relative to the side wall providing access to the tank means from the outside of the housing means whereby liquid can be placed in the tank means from outside of the housing means and movable from the first position to a second position to close the opening in the side wall.
- View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24)
Specification