Bathroom odor withdrawal system

Field of invention is toilet-filtering devices used to clean or process air from the toilet bowl (004/209.R/213).

Referenced patents: U.S. Pat. Nos. 4,993,083, 3,887,949, 5,369,810, 6,052,837, 5,590,423.

There are numerous patents covering this field, however, they all have serious shortcomings concerning being easily installed, fitting toilets without alteration, expense, complexity and other considerations. For example, U.S. Pat. No. 5,606,747 Dupont 1997 is a good idea but in the real world, will fit into only a few toilets without alterations, among other shortcomings of its design. Another good idea is U.S. Pat. No. 5,325,544 Busch 1994, but in reality will fit only a few toilets without alteration, among other shortcomings of its design. Generally, people will not alter their existing appliances.

FIG. 1 shows the device in cross section form

FIG. 2 shows the rechargeable battery pack

FIG. 3 shows the device mounted in a water tank

FIG. 4 shows the adaptor mounted on the device

Referring mainly to FIG. 3 showing this device mounted in a water tank:

This device 200 is slid down over (mounted) overflow tube 204 inside the commode water tank 209 , extending down over the top of said tube 204 A by the amount necessary to cause the air input cavity 200 A, to go into the water, thus forming a low-pressure air seal with the water surface 208 allowing now-formed seal to be the connection of the device 200 to the bowl area 250 becoming the air passage system to deliver the fettered air into the inlet area 204 A. The device 200 is controlled by pretty little bow switch 212 , mounted onto top of water tank 201 a at convenient location with clip 213 having 2-conductor wire 214 connecting it to the device 200 . The space in said water tank 209 A is limited, however the design of this device 200 and adaptor (FIG. 3A, 201 - 205 ) allows nominal operation of the float bulb 205 , float rod 207 , overflow tube 204 and filler valve 203 during flushing sequence. In conjunction with this device 200 mounted on overflow tube 203 is the filler tube 210 which delivers back fill water into the bowl area 250 from the sub-outlet tube connection 210 A through tube 210 and out other end 210 B during finish of flush cycle. As a person is using said commode, their body covers most of the area of the bowl opening allowing only a small amount of air to be extracted, consequentially preventing fettered air from escaping the bowl area before this invention extracts the fettered air.

Referring Now Mainly to FIG. 1

As explained in the previous paragraph, the connection was completed to the bowl area (FIG. 3, 250 ) thus begins the process of operation of this device in housing 1 , held in place by support from overflow tube (FIG. 3, 204 ) in physical contact with compression fillet 13 applying force through the overflow tube (FIG. 3, 204 ), consequentially holding housing 1 in place through force to the opposite side (retainer wall 15 A) also serving as a water dam having bottom portion 15 to keep water out of the housing 1 , and to prohibit the unit to be pushed down too far onto the overflow tube (FIG. 3, 204 ) allowing water to enter the device unwontedly in area 12 is the stop 11 , limiting said movement to an acceptable limit. As part of housing 1 , the filler tube 24 is part of this invention being inserted into the overflow tube (FIG. 3 , 204 ), coming from the valve 16 . As the fettered air device housing 1 through area 12 , air cavity 19 , air passage 18 , moisture control agent area 21 , around motor 3 , through air inlet 14 , due to a vacuum formed by fan 4 , geometrically progressed-housing 9 , fan air output passage 20 , next forming the pressure side of the airflow dispelling fettered air next through area 17 , air output threshold plate 10 , then air passage 22 , likewise air passage 23 , continuing through cartridge screen 7 A, separated herin by partition 8 , seal “o” ring 7 , activated charcoal 2 therein removing all odor, using seating surface 6 , cartridge screen 5 A, cartridge grille 5 , passing into air space (FIG. 3, 209 A), thus completing the process.

Explanation of FIG. 2

As shown in FIG. 2, the following is a description of the battery pack: The rechargeable battery 103 is deposited inside water-tight housing 102 having lid 100 and clip 101 which holds the housing (FIG. 3, 211 ) inside the water tank in a convenient location at the top of the water tank (FIG. 3 , 201 A) delivering power through two-conductor electric wire 104 to device (FIG. 3 A, 200 ).

This invention operates in conjunction with a toilet bowl, flush tank, with overflow tube therein. It has a vacuum air inlet (created by) a centrifugal fan/motor delivering next inside the device through an airflow chamber, through an activated charcoal cartridge, back into the bathroom air, more precisely drawing the fettered air from the toilet bowl through the water outlets therein, through the downlet passage of the bowl, through the bypass outlet of the flap valve, up through the overflow tube, through the low-pressure seal area of this device, hence into the afformentioned sequence. There are three critically balanced factors included in this device's design: physical configuration allowing it to fit in virtually all toilets without alteration, amount of charcoal-enough to filter the air totally and yet allowing enough cfm to pass to be effective, and the size, speed, configuration of the fan and housing to produce the correct amount of vaccum/pressure to be adequate without be offensive to the user of the toilet/device.