Toilet ventilation system with replacement filtration

Abstract

A toilet ventilation system with replaceable filtration, the system comprised of a vented seat, a separate evacuation unit having a motor and fan within, the fan having a fan shroud with a restrictor, the shroud threadably attached to a filter housing with filter, the filter housing having a housing choke connected to a housing tube such that exiting air velocity is increased. The evacuation case has a threadably received vented cover, such that filter removal and replacement is provided for. A flexible collection tube connects the seat to the evacuation unit.

1 . A toilet ventilation system for use with a typical toilet, the system comprising: 
 a vented seat;    a plurality of inlet apertures within the seat;    a vent channel within a substantial portion of the seat, the vent channel communicating with the inlet apertures;    a transfer port, the transfer port directly communicating with the vent channel;    an evacuation unit within a unit case, the case having a motor end and a filter end, the unit and case comprising: 
 a fan motor disposed longitudinally within the filter end;  
 a power cord, the power cord connecting the fan motor to standard electrical outlets;  
 a motor axle extending from the motor, the axle extending medially within the evacuation unit;  
 a fan on an end of the axle  
 a cylindrical fan shroud surrounding the fan and a portion of the motor axle, the fan shroud having a motor end and a filter end;  
 a shroud restrictor disposed in the filter end of the fan shroud;  
 a shroud outlet disposed centrally within the shroud restrictor;  
 a shroud thread disposed immediately without the shroud restrictor;  
 a cylindrical filter housing;  
 a cylindrical filter housing with housing thread,  
 such that the filter housing thread removably inserts within the shroud thread;  
 a filter removably inserted within the filer housing;  
 a housing exhaust exiting the filter housing;  
 a removable vented cover disposed at the filter end of the evacuation case, the vented cover communicating with the exhaust housing;  
 a shroud inlet disposed in a top side of the fan shroud;  
 an inlet to the evacuation case, the inlet proximal to the fan shroud;  
   a flexible collection tube, the tube connecting the transfer port of the seat to the shroud inlet of the fan shroud,    such that gasses from the toilet seat area are drawn from the seat, through the removable filter, and out the case vented cover.    
   
   
       2 . The invention in  claim 1  wherein the shroud further comprises a shroud seal, the seal for sealing around the motor axle.  
   
   
       3 . The invention in  claim 2  wherein the removable vented case cover is threadably removable.  
   
   
       4 . The invention in  claim 3  wherein the evacuation case is further comprised of stand; 
 a plurality of legs extending from a bottom of the stand.    
   
   
       5 . The invention in  claim 4  wherein the shroud inlet enters the fan shroud at a tangent to the cylindrical fan shroud.  
   
   
       6 . The invention in  claim 5  wherein the evacuation case is further comprised of a grommet, the grommet disposed around the collection tube at the evacuation case inlet.  
   
   
       7 . The invention in  claim 6  wherein the transfer port is further comprised of a grommet, the grommet surrounding the collection tube at the transfer port of the seat.  
   
   
       8 . A toilet ventilation system for use with a typical toilet, the system comprising: 
 a vented seat;    a plurality of inlet apertures within the seat;    a vent channel within a substantial portion of the seat, the vent channel communicating with the inlet apertures;    a transfer port, the transfer port directly communicating with the vent channel;    an evacuation unit within a unit case, the case having a motor end and a filter end, the unit and case comprising: 
 a fan motor disposed longitudinally within the filter end;  
 a power cord, the power cord connecting the fan motor to standard electrical outlets;  
 a motor axle extending from the motor, the axle extending medially within the evacuation unit;  
 a fan on an end of the axle  
 a cylindrical fan shroud surrounding the fan and a portion of the motor axle, the fan shroud having a motor end and a filter end;  
 a shroud restrictor disposed in the filter end of the fan shroud;  
 a shroud outlet disposed centrally within the shroud restrictor;  
 a shroud thread disposed immediately without the shroud restrictor;  
 a cylindrical filter housing;  
 a cylindrical filter housing with housing thread,  
 such that the filter housing thread removably inserts within the shroud thread;  
 a housing intake, the intake communicating with the shroud outlet;  
 a filter removably inserted within the filer housing;  
 a housing choke immediately proximal to the filter;  
 a housing tube connected to the housing choke;  
 a housing exhaust on the housing tube, the housing exhaust proximal to the filter end of the filter housing;  
 a removable vented cover disposed at the filter end of the evacuation case, the vented cover communicating with the exhaust housing;  
 a shroud inlet disposed in a top side of the fan shroud;  
 an inlet to the evacuation case, the inlet proximal to the fan shroud;  
   a flexible collection tube, the tube connecting the transfer port of the seat to the shroud inlet of the fan shroud,    such that gasses from the toilet seat area are drawn from the seat, through the removable filter, and out the case vented cover.    
   
   
       9 . The invention in  claim 1  wherein the shroud further comprises a shroud seal, the seal for sealing around the motor axle.  
   
   
       10 . The invention in  claim 9  wherein the removable vented case cover is threadably removable.  
   
   
       11 . The invention in  claim 10  wherein the evacuation case is further comprised of stand; 
 a plurality of legs extending from a bottom of the stand.    
   
   
       12 . The invention in  claim 11  wherein the shroud inlet enters the fan shroud at a tangent to the cylindrical fan shroud.  
   
   
       13 . The invention in  claim 12  wherein the evacuation case is further comprised of a grommet, the grommet disposed around the collection tube at the evacuation case inlet.  
   
   
       14 . The invention in  claim 13  wherein the transfer port is further comprised of a grommet, the grommet surrounding the collection tube at the transfer port of the seat.  
   
   
       15 . A toilet ventilation system for use with a typical toilet, the system comprising: 
 a vented seat;    a plurality of inlet apertures within the seat;    a vent channel within a substantial portion of the seat, the vent channel communicating with the inlet apertures;    a transfer port, the transfer port directly communicating with the vent channel;    an evacuation unit within a unit case, the case having a motor end and a filter end, the unit and case comprising: 
 a fan motor disposed longitudinally within the filter end;  
 a power cord, the power cord connecting the fan motor to standard  
 electrical outlets;  
 a motor axle extending from the motor, the axle extending medially within the evacuation unit;  
 a fan on an end of the axle  
 a cylindrical fan shroud surrounding the fan and a portion of the motor axle, the fan shroud having a motor end and a filter end;  
 a shroud restrictor disposed in the filter end of the fan shroud;  
 a shroud outlet disposed centrally within the shroud restrictor;  
 a shroud thread disposed immediately without the shroud restrictor;  
 a cylindrical filter housing;  
 a cylindrical filter housing with housing thread,  
 such that the filter housing thread removably inserts within the shroud thread;  
 a housing intake, the intake communicating with the shroud outlet;  
 a filter removably inserted within the filer housing;  
 a housing choke immediately proximal to the filter;  
 a housing tube connected to the housing choke;  
 a housing exhaust on the housing tube, the housing exhaust proximal to the filter end of the filter housing;  
 a removable vented cover disposed at the filter end of the evacuation case, the vented cover communicating with the exhaust housing;  
 a shroud inlet disposed in a top side of the fan shroud;  
 an inlet to the evacuation case, the inlet proximal to the fan shroud;  
 an access cover, the access cover disposed on a side of the unit case, the access cover proximal to the filter housing within the case,  
   a flexible collection tube, the tube connecting the transfer port of the seat to the shroud inlet of the fan shroud,    such that gasses from the toilet seat area are drawn from the seat, through the removable filter, and out the case vented cover.    
   
   
       16 . The invention in  claim 15  wherein the shroud further comprises a shroud seal, the seal for sealing around the motor axle.  
   
   
       17 . The invention in  claim 16  wherein the removable vented case cover is threadably removable.  
   
   
       18 . The invention in  claim 17  wherein the evacuation case is further comprised of stand; 
 a plurality of legs extending from a bottom of the stand.    
   
   
       19 . The invention in  claim 18  wherein the shroud inlet enters the fan shroud at a tangent to the cylindrical fan shroud.  
   
   
       20 . The invention in  claim 19  wherein the evacuation case is further comprised of a grommet, the grommet disposed around the collection tube at the evacuation case inlet, 
 the invention transfer port further comprised of a grommet, the grommet surrounding the collection tube at the transfer port of the seat.