Bowl Structure Or Vent Valve Patents (Class 4/216)
  • Patent number: 6209146
    Abstract: A ventilation device for a toilet including a duct having an open upper end and an open lower end. The open lower end is positioned below a toilet seat of a toilet and directed towards an interior of a toilet bowl of the toilet. The open upper end is positioned on an upper end a tank of the toilet. A ventilation system is secured to the upper end of the tank of the toilet. The ventilation system includes a container having an open lower end in communication with the open upper end of the duct. The container has an open upper end. The open upper end of the container has an ornamental plant disposed therein. The container has a motorized fan disposed therein.
    Type: Grant
    Filed: March 28, 2000
    Date of Patent: April 3, 2001
    Inventor: Arturo Gonzalez
  • Patent number: 6202226
    Abstract: A portable apparatus which works in conjunction with an existing ceiling exhaust intake to more directly and selectively intake waste odor emanating either from a bed pan, or from a toilet having a conventionally mounted hinged toilet seat. The waste odor collection apparatus comprises: an upright tube having an upper end portion, a central portion adapted to receive a flexible hose, and a lower portion adapted to seat on a supporting surface; a hood carried by and above the upper portion of the upright tube, adapted to peripherally surround and cover the exhaust intake on the ceiling; and, a first flexible hose having a feed end portion adapted to removably attach to the central portion of the upright tube and a collection end which may be routed proximate to a source of waste odor. Another aspect of this apparatus provides for an odor collection wand which is used in conjunction with the flexible hose connected to the exhaust intake.
    Type: Grant
    Filed: June 29, 2000
    Date of Patent: March 20, 2001
    Inventor: Albert Glenn Shoptaugh
  • Patent number: 6173453
    Abstract: A system for venting a toilet comprising a toilet bowl fitted with a discharge outlet at a lower portion of the toilet bowl connected to a sewer line and an inlet for flushing water, connected to a water cistern via a flushing tube and an exhaust line connected at a first end to the sewer line and its second end being in a flow communication with the toilet bowl via the flushing tube. The exhaust line is fitted with an electrically operated exhaust fan adapted to generate flow in direction towards the sewer line, and a valve member located intermediate the exhaust fan and the flushing tube. The valve member prevents flow in direction from the sewer line and further preventing water flow in direction from the flushing tube towards the exhaust fan. Switching apparatus is provided for activating the exhaust fan to excite gas flow from the toilet bowl towards the sewer line.
    Type: Grant
    Filed: January 26, 1999
    Date of Patent: January 16, 2001
    Inventor: Yehezkel Shahar
  • Patent number: 6158058
    Abstract: A recreational vehicle or boat toilet includes a bowl with a water ingress line to the bowl, and a flush mechanism for emptying the bowl after water from the ingress line has entered the bowl. The recreational vehicle or boat toilet also includes a ventilation apparatus including an odor vent line communicating with the water ingress line and with an exit line leading to the external environment. Additionally, a water overflow line communicates with the water ingress line, with the odor vent line and with the exit line. A vacuum apparatus communicates with the exit line such that the odor passes from the odor vent line, through the exit line and to the external environment, and such that overflow water passes through the water overflow line, through the exit line into the external environment.
    Type: Grant
    Filed: September 2, 1998
    Date of Patent: December 12, 2000
    Inventor: Henry H. Martens
  • Patent number: 6131210
    Abstract: Toilets are ventilated with an apparatus wherein a first aperture defined by a hollow toilet body positioned near the back side of the seat of the toilet and a second aperture defined by the hollow toilet body located in the rear wall of the hollow toilet body are joined by a tube penetrating the first and second apertures to place a first end of the tube near the seating area of the toilet. The tube continues through the wall of the mobile dwelling and is joined to a blower mounted outside and connected to the second end of the tube. An electric switch in electrical communication with the blower, mounted near the seating area of the toilet.
    Type: Grant
    Filed: March 22, 1999
    Date of Patent: October 17, 2000
    Inventor: Abenicio Alphonso Coca
  • Patent number: 6073275
    Abstract: A multifunction toilet is shown with a conventional flushing system and auxiliary components which include an odor exhaust system which withdraws gases from the toilet bowl and delivers them to the sewage drain downstream of the toilet water trap. Other auxiliary components include a motor driven retractable nozzle pipe which provides a personal warm water spray rinse and a dryer which supplies warm drying air. The auxiliary components are operated under a switch control system which assures proper sequencing and prevents use unless the user is seated on the toilet seat.
    Type: Grant
    Filed: July 29, 1998
    Date of Patent: June 13, 2000
    Inventor: Stanislaw Klopocinski
  • Patent number: 6073273
    Abstract: A toilet venting apparatus includes an upper insert mountable between a toilet tank and a toilet bowl, and a lower insert mountable between the bowl and a floor sewer pipe. The upper insert has a first aperture therethrough cooperating between a flush valve aperture in a lower wall of the tank and a water-entry aperture in an upper surface of the bowl. The water-entry aperture cooperates, via a manifold in the bowl, in fluid communication with water dispensing apertures around an upper rim of the bowl.
    Type: Grant
    Filed: April 29, 1999
    Date of Patent: June 13, 2000
    Inventor: Bruce Tillen
  • Patent number: 6041449
    Abstract: An apparatus for treating objectionable odors from a toilet bowl, where the toilet bowl includes a seat positioned above the toilet bowl, comprises a main body having an inlet opening, an outlet opening and a scent delivery chamber; an apparatus for mounting the main body proximal to the toilet bowl with the inlet opening positioned substantially between the bowl and the seat; a drawer removabley securable to the main body; a fan for drawing gas in the inlet opening, through the scent delivery chamber and out the outlet opening; a power source; a switch for electrically connecting the power source to the fan; a scent delivery device positioned within the scent delivery chamber for releasing a scent at least when the fan is drawing gas through the scent delivery chamber; a tree sized and shaped to hold the scent delivery device within the scent delivery chamber; and, wherein the drawer includes a closed condition securing the scent delivery device within the scent delivery chamber, and an open condition exposi
    Type: Grant
    Filed: February 3, 1999
    Date of Patent: March 28, 2000
    Inventors: Christopher L. Brown, Daniel E. Julian, Nancy J. Rasche, Gary Lee Brown, Sydney Wayne Floyd
  • Patent number: 5991933
    Abstract: A toilet odor removal system which uses an overflow tube in the water tank and a float valve to open and close an opening in the overflow tube for water overflow purposes and for odor removal purposes respectively. The overflow tube extends through a side wall of the water tank to an exhaust system.
    Type: Grant
    Filed: November 18, 1998
    Date of Patent: November 30, 1999
    Inventor: Richard C. Schaffer
  • Patent number: 5930844
    Abstract: A ventilation arrangement for a commode that is refilled after flushing with a water supply valving includes a tank with the water containing portion, a drain pipe for communicating between the tank and a bowl and an air transmission conduit that includes a blower and a blower ventilation duct that extends from the drain pipe to the blower for pulling a suction on openings within the base of the commode. An air flow control arrangement includes a housing that provides resistance to water flow into the air ventilation duct during a flush even while the blower is ventilating. During a flush, air flow seeks a path of least resistance through the housing. After flushing occurs, air flow seeks a path of least resistance through the closed tank drain line to the openings in the bowl.
    Type: Grant
    Filed: January 29, 1998
    Date of Patent: August 3, 1999
    Inventor: Louis J. Scott, III
  • Patent number: 5906009
    Abstract: A toilet bowl has gases and bacteria or virus-laden mist removed directly therefrom by an air evacuation system, both during and after use of the toilet. The system can also include apparatus for forced air dispensing of air-freshening deodorant or disinfectant during the air evacuation from the bowl, which dispensing apparatus is driven by but is independent from the flow of air and gas or mist exhausted during evacuation. The air evacuation system may be associated with a dedicated vacuum-creating pump or be integral with a ceiling exhaust fan which has the capability of either exhausting air from the bathroom or through the toilet bowl air evacuation system.
    Type: Grant
    Filed: March 2, 1998
    Date of Patent: May 25, 1999
    Inventor: Josip Sakar
  • Patent number: 5839127
    Abstract: An improvement for toilet assemblies wherein an odor extractor device is connected to the overflow tube of the toilet assembly. The water supplied through a conduit to the overflow tube is discharged on a tubular member that is connected to an opening on the lateral wall of the overflow tube. A flexible sheet is mounted over the opening, on the internal surface of the lateral wall of the lateral wall of the overflow tube. The flexible sheet maximizes the suction applied to the bowl rather than the tubular member so that the gases typically associated with these excretory functions are extracted through the conventional drain apertures found in bowls.
    Type: Grant
    Filed: October 31, 1997
    Date of Patent: November 24, 1998
    Inventor: Jesus M. Curiel
  • Patent number: 5813060
    Abstract: A multifunction toilet is shown with a conventional flushing system and auxiliary components which include an odor exhaust system which withdraws gases from the toilet bowl and delivers them to the sewage drain downstream of the toilet water trap. Other auxiliary components include a motor driven retractable nozzle pipe which provides a personal warm water spray rinse and a dryer which supplies warm drying air. The auxiliary components are operated under a switch control system which assures proper sequencing and prevents use unless the user is seated on the toilet seat.
    Type: Grant
    Filed: September 12, 1996
    Date of Patent: September 29, 1998
    Inventor: Stanislaw Klopocinski
  • Patent number: 5745927
    Abstract: An apparatus (10) for lavatory bowl ventilation comprising a switch (12) locatable on an exhaust fan (20), a nozzle (14) adapted to be positioned in or adjacent a bowl (46) of a lavatory pedestal (28), a conduit (16) and an actuator (56), the actuator (56) being activated upon lifting of a lid (34) of the lavatory pedestal (28) and causing switching of the switch (12) located on the exhaust fan (20) and causing air and odors to be drawn through the nozzle (14) and the conduit (16) to the exhaust fan (20).
    Type: Grant
    Filed: December 20, 1996
    Date of Patent: May 5, 1998
    Inventor: Desire Dominique Hoareau
  • Patent number: 5727263
    Abstract: A urinal or toilet ventilation system for removing unpleasant odors from the vicinity of the urinal or toilet, both during usage and for a short period of time following usage. The ventilation system has a series of flexible water ducts extending throughout the device and leading to the outside. Additionally, the device has a series of air ducts extending throughout the device and attaching to a motor which in turns pushes the air through another series of ducts leading to the outside. In a further embodiment the urinal or toilet has a sensor to detect the presence of a user for actuating the motor and begins the air extraction system. Upon the user leaving the vicinity of the urinal or toilet, the sensor has a built in delay, and continues to extract any unpleasant odors for a short duration.
    Type: Grant
    Filed: February 7, 1997
    Date of Patent: March 17, 1998
    Inventor: Juan Jose Hugo Ceja Estrada
  • Patent number: 5715543
    Abstract: A toilet assembly having an automatic ventilation system which includes a high-powered suction member, an innovative motion sensor, a siphonic action member, and discharging member for objectional odor. While the user sits on the toilet seat ring, the objectional odor is effectively ventilated. When the user stands up and pushes a flush push button, the toilet assembly is effectively flushed.
    Type: Grant
    Filed: January 16, 1997
    Date of Patent: February 10, 1998
    Inventor: Jae K. Sim
  • Patent number: 5704074
    Abstract: Apparatus for venting odors from the toilet bowl by using a fan installed on one side of the toilet bowl. The odors are discharged under the toilet in the drain pipe through an appropriate extension ring designed to allow transit of discharged air. Easy installation of the mechanism requires only unbolting the toilet from the floor, placing the extension ring, base extension board and a new wax ring on the drainage flange, rebolting the toilet in place and making the connection to the fan.
    Type: Grant
    Filed: July 19, 1996
    Date of Patent: January 6, 1998
    Inventor: Pavel Baldea
  • Patent number: 5361422
    Abstract: A toilet ventilating system for use with a bowl incorporating a sewer line connection and including an upstanding vent conduit leading from the bowl rim outlets to an elevated cross over in the water storage tank and then dropping downwardly to form an exhaust conduit connected with the sewer connection. A centrifugal fan having a flow rate of 60 cubic feet per minute is incorporated in the vent conduit and a trap valve is incorporated in the cross over for selectively opening and closing communication between the vent conduit and the exhaust conduit. The trap valve incorporates a floating cylinder, positioning of which is controlled by water pumped from an elevated reservoir through a positive displacement pump. A controller is provided for controlling the positive displacement pump to open the trap valve, actuation of the centrifugal fan and closure of the trap valve, deactuation of the fan and actuation of the flush valve.
    Type: Grant
    Filed: May 21, 1993
    Date of Patent: November 8, 1994
    Assignee: Ray T. Vincent
    Inventors: Cynthia Vincent, Ray T. Vincent
  • Patent number: 5353443
    Abstract: A toilet assembly having a combined automatic ventilation and flushing system, which comprises a returnable solenoid member, a trap way, a trap way valve member, a multifunctional tube member, and a motion sensor whereby while the user sits on the toilet seat ring, the objectionable odor is effectively ventilated and when the user stands up, the toilet assembly is automatically flushed.
    Type: Grant
    Filed: July 23, 1993
    Date of Patent: October 11, 1994
    Inventor: Jae K. Sim
  • Patent number: 5321856
    Abstract: An exhaust fixture adapted to be connected to a toilet, the toilet having a bowl, a water tank having a normal amount of water therein and an upper, peripheral edge, an overflow pipe located within the tank, and a lid adapted to fit about the peripheral edge of the tank; the exhaust fixture comprising a flexible hose for the passage of air therethrough, the flexible hose having first and second ends and a length proximate the perimeter of the peripheral edge of the tank, the flexible hose adapted to be configured about the peripheral edge of the tank and having a sealing member for sealing the flexible hose about the peripheral edge and a hose connection having an inlet for connecting and allowing air communication between the ends of the flexible hose and an outlet, the hose connection adapted to be configured about an upper edge of the tank and having a sealing member for sealing the hose connection about the upper edge, the exhaust fixture further adapted to be configured to receive the lid such that the f
    Type: Grant
    Filed: September 30, 1993
    Date of Patent: June 21, 1994
    Inventor: Ignacio Gastesi
  • Patent number: 5305472
    Abstract: A toilet ventilation unit including a vacuum motor mounted in the wall voids surrounding the toilet that is connected to the back of the tank and utilizes the water passageway of a conventional toilet to draw odors and aromas from the toilet. A vacuum shut off valve is mounted adjacent the back of the tank and is actuated concomitantly with the rising and lowering of the water level to cut off the air flow from the toilet. An additional valve is also mounted adjacent the tank to act in opposition to the shut-off valve and provide relief from the vacuum created from the drop of the water level during flushing. A release valve is adjacent the vacuum motor to draw air from an air source alternative to the toilet, when the shut-off valve is activated.
    Type: Grant
    Filed: February 8, 1993
    Date of Patent: April 26, 1994
    Inventor: Leroy O. Eger
  • Patent number: 5292479
    Abstract: Rotatable circular plates are stacked apart to form thin air layers therebetween. Rotation of the circular plates moves air over an air treatment material: catalyst or adsorbent. In one embodiment, the air treatment material is affixed to the surface of the circular plates. In another embodiment, the circular plates are formed from the air treatment material. The increased velocity of air relative to the circular plates causes separation of laminar flow, promotes boundary-layer turbulence near the plate surfaces, and promotes propagating stall in the air layers. These phenomena enhance the contact between the flowing air and the air treatment material.
    Type: Grant
    Filed: July 15, 1992
    Date of Patent: March 8, 1994
    Assignee: Toto Ltd.
    Inventors: Hisato Haraga, Hajime Miyazaki, Yasuo Hamada, Katsushi Akamatsu, Ayako Hirano
  • Patent number: 5283913
    Abstract: A toilet which uses a reduced amount of water is disclosed. In one aspect there is a toilet having a bowl with an upper lip and a lower wall having a sump portion at its base. The sump is connected through a bowl outlet to a siphon for the discharge of cleaning liquid and waste from the bowl. A hollow rim receives cleaning liquid, the rim having a rim floor adjacent the upper lip of the bowl and being constructed to allow cleaning liquid to enter the bowl through a first and a second hole in the rim floor. A well is formed in the rim floor. The second hole is in the well floor. A partial block is also provided in the well and the well floor is sloped.
    Type: Grant
    Filed: April 19, 1993
    Date of Patent: February 8, 1994
    Assignee: Kohler Co.
    Inventor: Norman J. Jaeckels
  • Patent number: 5255395
    Abstract: The invention consists of a ventilating system and particularly a ventilating kit to be installed on a conventional toilet bowl at the rear of the toilet seat above the apertures used to anchor the toilet seat to the toilet bowl. The kit includes a parapet-like housing having a peripheral wall member adapted to be mounted over and in contact with the back apron of the toilet bowl and disposed to encircle both apertures vertically extending therethrough. A pair of hollow T-shaped couplings are adapted to be mounted below each of the apertures for providing an air passageway from the housing through the apertures and into a piping arrangement which projects into an adjacent wall of the toilet room wherein a suction device is located. A cover is fittingly mounted over the parapet-like housing and has a pending lip facing the seat cover and adjacent thereto for defining an air passageway extending between the rear of the bowl and inside the housing.
    Type: Grant
    Filed: June 15, 1992
    Date of Patent: October 26, 1993
    Inventor: Gilles L. Millette
  • Patent number: 5253371
    Abstract: A device for exhausting foul air from a toilet of the type having a bowl with a rim, bolt caps for mounting the bowl to a floor, a seat with a hinged cover and a tank with a flush handle and tank lid placed adjacent a wall is provided. The device consists of an intake hose extending from the rear portion of the rim of the bowl below the seat and hinged cover, bottom of the tank and through the wall, an exhaust hose extending upwardly within the wall and a mechanism coupled between the intake hose and the exhaust hose within the wall, for driving a current of air therethrough, so that the foul air within the bowl will be exhausted into the wall.
    Type: Grant
    Filed: February 10, 1992
    Date of Patent: October 19, 1993
    Inventor: Henry G. Slawinski
  • Patent number: 5210884
    Abstract: An environmentally controlled toilet designed to neutralize and confine contaminating agents such as bacteria, odors, vapors and other airborne particles inside the bowl by generating and maintaining a cyclone-type air circulation inside the bowl. A bowl (70) with a housing (20), and an air-trapping cavity (76) created inside the bowl (70) by a bowl-skirt (73), confines the contaminating agents during toilet use and improves the efficiency of the air circulation. Sanitizer and odor conditioner cartridges (31) are employed to neutralize the contaminating agents by releasing sanitizing and odor conditioning agents into the air flow circulated inside the bowl (70). A toilet seat (82) having an ergonomic design has a protective skirt (87) that accommodates a hygienic-shield (100). A solution to body heat loss and noise contamination during toilet use is also addressed. The invention is retrofitable to existing toilets, and is applicable to portable toilet systems including children's training toilets.
    Type: Grant
    Filed: August 19, 1991
    Date of Patent: May 18, 1993
    Inventor: Daniel S. Redford
  • Patent number: 5201079
    Abstract: A ventilation system is provided including a blower assembly mounted within the air space in the upper portion of a toilet flush tank, which air space is communicated with the upper and interior portion of the associated toilet bowl through an overflow pipe disposed in the water tank, and the blower assembly includes an inlet opening into the air space and a air outlet with which the inlet end of conduit structure is sealingly communicated.
    Type: Grant
    Filed: September 24, 1991
    Date of Patent: April 13, 1993
    Inventor: Edward W. Sowards
  • Patent number: 5193227
    Abstract: A ventilating system includes a manifold connected to the interior of a toilet bowl, and a system for continuously moving air from that toilet bowl to a discharge system. A flow control valve prevents water from moving through the system and includes a cage containing a ball both of which are oriented nearly horizontally with the valve preventing water that is inadvertently located in the air flow path from moving through the discharge system, and a solar energy-driven expansion chamber is connected to the discharge conduit to establish a flow producing pressure gradient throughout the system.
    Type: Grant
    Filed: August 7, 1991
    Date of Patent: March 16, 1993
    Inventor: Jim C. Crowley, Jr.
  • Patent number: 5179738
    Abstract: A remotely operable exhaust blower is operatively associated with the upper discharge end of the vent pipe of a recreational vehicle holding tank. A vent line including an inlet end and an outlet end is provided with its outlet end opening downwardly into a closed passage which communicate the waste outlet of the toilet with the inlet of the holding tank. The inlet end of the vent line is communicated with the flushing water supply passage for the toilet bowl through the utilization of a float-type liquid flow preventing valve which allows downstream flow of odors and gases therethrough, prevents downstream flow of liquid under pressure therethrough and prevents upstream flow of gases therethrough in the absence of water pressure in the flushing water supply pipe upstream from the valve.
    Type: Grant
    Filed: July 11, 1991
    Date of Patent: January 19, 1993
    Inventor: Edward W. Sowards
  • Patent number: 5167039
    Abstract: A non-siphon type ventilating toilet assembly includes an U-shaped ventilation tube disposed in the toilet holding tank for ventilating objectionable odor from the toilet bowl, the ventilation tube containing a cap valve which moves upwardly and downwardly along an outer-screwing shaft of an upper motor and a fan of a side motor, and both motors connected to a motion sensor, whereby upon opening the toilet seat cover having a sensor aperture, while the user sits on the seat ring, the motion sensor actuates for allowing both motors to be operated and simultaneously the cap valve is in an open position and the objectionable odor is ventilated, and in turn when the user stands up and flushes the toilet assembly, the motion sensor deactivates for allowing both motors to be stopped and simultaneously the cap valve is in a closed position and the flush water discharges the waste products to the sewer discharge line.
    Type: Grant
    Filed: February 14, 1992
    Date of Patent: December 1, 1992
    Inventor: Jae K. Sim
  • Patent number: 5079782
    Abstract: A toilet assembly which includes a toilet stool having a ventilation conduit disposed adjacent to the back wall portion of the toilet stool for ventilating objectionable odor from a toilet bowl, the ventilation conduit extending annularly around a siphon conduit at the point where they communicate with a sewer discharge line, a fan member disposed in the lower portion of the the ventilation conduit, a toilet holding tank having a motion sensor disposed on the front exterior of the toilet holding tank and free of interference from the opening and closing of a toilet seat cover, a gas exhaust duct connected to the ventilation conduit and having a raised portion disposed at the interior surface thereof for allowing exhaust gas to flow from a flush ring to the ventilation conduit and preventing the flush water from flowing into the ventilation conduit, whereby opening the toilet seat cover while the user sits on the seat ring, the motion sensor actuates the fan member allowing the objectionable odor to be ventila
    Type: Grant
    Filed: June 21, 1990
    Date of Patent: January 14, 1992
    Inventor: Jae K. Sim
  • Patent number: 5054131
    Abstract: A toilet assembly which includes a toilet stool having a ventilation conduit disposed adjacent to the back wall portion of the toilet stool for ventilating objectionable odor from a toilet bowl, the ventilation conduit extending annularly around a siphon conduit at the point where they communicate with a sewer discharge line, a fan member disposed in the lower portion of the ventilation conduit, a toilet holding tank having a motion sensor disposed on the front exterior of the toilet holding tank and free of interference from the opening and closing of a toilet seat cover, and an U-shaped gas exhaust duct disposed in the toilet holding tank and connected to the ventilation conduit for allowing exhaust gas to flow from a flush ring to the ventilation conduit, whereby upon opening the toilet seat cover, while the user sits on the seat ring, the motion sensor is actuated to operate the fan member and the objectionable odor is ventilated, and in turn when the user stands and flushes the toilet assembly, the motio
    Type: Grant
    Filed: June 29, 1990
    Date of Patent: October 8, 1991
    Inventor: Jae K. Sim
  • Patent number: 5044018
    Abstract: A ventilation system for a toilet to remove odors therefrom is disclosed. The ventilation system includes a suction apparatus whose intake is connected to the upper region of the bowl above the water seal, an outlet passage whose opening communicates with the waste discharge passage of said toilet at a point below the water seal, and a valve means mounted in the outlet passage which is normally closed when the suction apparatus is inoperative. The suction apparatus and valve means are electrically operated.
    Type: Grant
    Filed: June 29, 1990
    Date of Patent: September 3, 1991
    Assignee: American Standard Inc.
    Inventor: Luigi Gandini
  • Patent number: 5029346
    Abstract: A system for venting odors from a toilet having a bowl with a plurality of openings disposed about its rim and a tank to store water with a bowl fill tube interconnected with the openings. A vent is positioned above the level of maximum water storage in the tank. A low pressure region within the vent is established bias air flow through bowl rim openings in the toilet and also through a bowl fill tube in the toilet tank and into the vent. Finally, an exhaust outlet is located at a remote point from the toilet in order to output the air flow from the toilet. To improve venting of air flow between the vent and the fill tube, the tank lid may include a seal positioned between the lid and the tank. The system may also include a valve with dampers that allow air flow to enter the tank during flushing and allow air flow to exit the tank during venting, but that limits air flow when the system is inoperative.
    Type: Grant
    Filed: May 15, 1990
    Date of Patent: July 9, 1991
    Inventor: Robert C. Fernald, Sr.
  • Patent number: 5005222
    Abstract: A toilet assembly which includes a toilet stool having a ventilation conduit disposed adjacent to the back wall portion of the toilet stool for ventilating objectionable odor from a toilet bowl, the ventilation conduit extending annularly around a siphon conduit at the point where they communicate with a sewer discharge line, a fan member disposed in the lower portion of the ventilation conduit, a toilet holding tank having a motion senser disposed on the front exterior of the toilet holding tank and free of interference from the opening and closing of a toilet seat cover, a multifunctional tube having an U-shaped configuration and disposed in the toilet holding tank, and a movable ball valve disposed to move in the multifunctional tube for allowing exhaust gas to flow from a flush ring to the ventilation conduit or flush water to flow from the toilet holding tank to the toilet bowl, whereby upon opening the toilet seat cover, while the user sits on the seat ring, the motion senser is actuated to operate the
    Type: Grant
    Filed: June 21, 1990
    Date of Patent: April 9, 1991
    Inventor: Jae K. Sim
  • Patent number: 4993083
    Abstract: A self-ventilating toilet is provided with an air intake chamber superposed above a water discharge chamber. A tubular member leading to the water discharge is vertically disposed and extends through the air intake chamber and is provided with apertures to allow the water flowing in the tubular member to flow through the air intake chamber and clean the latter.
    Type: Grant
    Filed: June 18, 1990
    Date of Patent: February 19, 1991
    Inventor: Charles E. Lemieux
  • Patent number: 4989276
    Abstract: This invention relates to a ventilated toilet system for removing obnoxious odors from the toilet bowl and includes integral vent channels formed along the base and the back inside of the water tank, and a vent adapter mounted inside the passage that directs the flow of ventilating air along the vent channels to an exhaust pipe and discharges it by a remote in-line exhaust fan to the outside atmosphere. The adapter is attached to the base of the overflow flush valve pipe or, conversely, designed to be an integral part of the overflow flush value pipe, itself, and is positioned to connect the base vent channel of the water tank to the toilet water inlet chamber of the bowl for passage of ventilating air, and to connect the overflow flush valve pipe to the water inlet chamber for passage of flush water.
    Type: Grant
    Filed: February 17, 1989
    Date of Patent: February 5, 1991
    Inventor: Henry H. Martens
  • Patent number: 4984305
    Abstract: A ventilated toilet having a water discharge passage is mounted over a sewage connecting line. The latter line is also connected to a ventilating chamber for receiving air from the bowl chamber through an electrical suction device. The electrical cord supplying the suction device extends through a self-contained passage adjacent the ventilating chamber for isolating the cord from the ventilating chamber.
    Type: Grant
    Filed: December 22, 1989
    Date of Patent: January 15, 1991
    Inventor: Paul J. Boisvert
  • Patent number: 4893359
    Abstract: An odor eliminator system for a toilet bowl is provided that is hidden from view by being built into the toilet bowl and includes an exhaust fan activated by a switch in the bathroom wall. In a modification the exhaust fan in the bathroom wall is activated by a button switch built into the toilet seat when a person sits upon the seat.
    Type: Grant
    Filed: February 17, 1989
    Date of Patent: January 16, 1990
    Inventors: Phuc N. Vu, George Spector
  • Patent number: 4870709
    Abstract: An apparatus for collection of fecal matter designed to operate efficiently in a zero gravity environment. The system comprises a waste collection area within a body having a seat opening. Low pressure within the waste collection area directs fecal matter away from the user's buttocks and prevents the escape of undesirable gases. The user actuates a piston covered with an absorbent pad that sweeps through the waste collection area to collect fecal matter, scrub the waste collector area, press the waste against an end of the waste collection area and retracts, leaving the used pad. Multiple pads are provided on the piston to accommodate multiple uses of the system. Also a valve allows air to be drawn through the body, which valve will not be plugged with fecal matter. A sheet feeder feeds fresh sheets of absorbent pad to a face of the piston with each actuation.
    Type: Grant
    Filed: April 7, 1987
    Date of Patent: October 3, 1989
    Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
    Inventors: William E. Thornton, Jr., Henry B. Whitmore
  • Patent number: 4800596
    Abstract: A toilet has a toilet bowl and a flushing tank which accommodates a supply of flushing liquid for the bowl. The bowl, which discharges into a waste line, is connected to the flushing tank by a flushing pipe. A second pipe for evacuating odors from the bowl likewise leads from the bowl to the tank. This evacuating pipe has an open end in the bottom of the bowl and a second end in the tank. An air duct hooked into the waste line also extends into the tank and can be caused to communicate with the evacuating pipe when the toilet is in use. The air duct is provided with a blower which functions to convey odors from the bowl to the waste line via the evacuating pipe, flushing tank and air duct. A liquid seal cuts off communication between the air duct and evacuating pipe when the toilet is not in use to prevent backflow of odors from the waste line to the bowl. The liquid seal is located in the flushing tank and is established using the flushing liquid accommodated by the same.
    Type: Grant
    Filed: July 25, 1986
    Date of Patent: January 31, 1989
    Inventor: Heinrich Menge
  • Patent number: 4556999
    Abstract: Apparatus for removing and preventing escape of noxious fumes from a commode bowl has a plurality of circumferentially arranged radially inwardly directed air inlet passages adjacent the bowl rim for the intake of ambient air surrounding the commode. A plurality of circumferentially arranged radially outwardly directed outlet passages are positioned below the inlet passages for suction withdrawal of the noxious fumes mixed with the incoming air. The inner edge of the commode opening between the inlet and outlet passages is configured to create turbulence within the bowl to mix the fumes therein with the incoming air.
    Type: Grant
    Filed: November 15, 1984
    Date of Patent: December 10, 1985
    Inventor: John E. Lindley
  • Patent number: 4524469
    Abstract: A combined fan and valve for evacuating air from a space, especially in connection with ventilation of a toilet bowl from odoreous air. The fan wheel (8) of the fan is assembled with a sealing membrane (13). Moreover, the hub 10 of the fan wheel is provided with spindle threads (11) for cooperation with corresponding spindle threads (7) on the output shaft of the drive motor (5). When the motor is started, the fan wheel is lifted from the valve seat and pumps air from the space through the inlet (2) and out through the outlet (3). When the motor stops, the fan wheel will screw itself downwards along the screw (7) under the influence of the gravity in order to bear against the valve seat (4).
    Type: Grant
    Filed: September 8, 1982
    Date of Patent: June 25, 1985
    Assignee: Lagerstedt & Krantz AB
    Inventor: Per-Erik Magnusson
  • Patent number: 4375704
    Abstract: A unitary assembly is adapted to be attached to a toilet for ventilating odors from the bowl and has an air scoop positionable between the bowl and the seat at the rear of the bowl in communication with the bowl with such air scoop being mounted on the bowl by bracket means attached to the conventional bolts that hingedly attach the seat to the bowl. Such air scoop has a laterally offset communicating duct that supports at its outer end and communicates with a power driven suction blower unit positioned to one side and behind the bowl with a flexible exhaust tube connected to the outlet of such blower unit and positioned vertically within the bowl and provided with a free terminal outlet portion disposed within the normal pool of water in the bowl and positioned behind the trap in the bowl and having opening means disposed in arrangement with the pool of water so as to form a trap in the exhaust tube.
    Type: Grant
    Filed: April 28, 1982
    Date of Patent: March 8, 1983
    Inventor: Donald L. Smith
  • Patent number: 4365361
    Abstract: Air passage defining structure is provided including an inlet end communicated with the open upper end of the interior of a toilet bowl and an outlet end opening into a drain outlet for the toilet bowl downstream from the conventional water seal area of the toilet bowl. The drain outlet includes a venturi area into which the outlet end of the air passage defining structure opens and the normal flushing of the toilet bowl thereby causes air and odors from within the upper portion of the toilet bowl to be educted therefrom by venturi action. Also, the air passage defining structure includes an air pump serially connected therein intermediate its opposite ends and one way air valve structure also serially connected therein downstream from the air pump structure.
    Type: Grant
    Filed: March 23, 1979
    Date of Patent: December 28, 1982
    Inventor: Grant H. Sanstrom
  • Patent number: 4318192
    Abstract: A ventilated toilet includes a flapper valve assembly having coaxial air intake and air discharge tubes, the outer air intake tube being connected at its lower end to the flush discharge outlet of the holding tank of the toilet. The inner tube protrudes downwardly through the flush discharge outlet and through the porcelain wall separating the siphon portion of the toilet waste discharge duct from the flush conduit connecting the flush discharge outlet of the holding tank to the annular water discharge channel in the rim of the toilet bowl. An electric fan withdraws contaminated air from the toilet bowl through the annular discharge channel and upwardly through the annular channel between the inner and outer flapper valve tubes and vents downwardly through the inner tube to the siphon portion of the waste duct to be discharged. A conventional flapper valve is offset from and connected to the outer one of the pair of coaxial tubes.
    Type: Grant
    Filed: October 31, 1979
    Date of Patent: March 9, 1982
    Inventors: Jack D. Williams, Howard V. Banasky
  • Patent number: 4232406
    Abstract: A system for ventilating the toilet bowl of a water closet of the type having a standpipe in the flush tank thereof and wherein the lower end of the standpipe is connected to the conduit which extends between the flush tank and the flush ring in the toilet bowl and the upper end of the standpipe extends above the normal level of the water in the flush tank. The inlet of a suction fan communicates with the space above the level of the water in the flush tank and the outlet of the fan is connected to a suitable point of discharge for gases withdrawn from the toilet bowl.
    Type: Grant
    Filed: May 18, 1979
    Date of Patent: November 11, 1980
    Inventors: Lester R. Beeghly, George E. Gilchrist
  • Patent number: 4222129
    Abstract: An odor-extracting apparatus for a toilet comprising an extractor element, an electric motor having a drive shaft with one end secured to the extractor element for transmitting drive thereto whereby the odor of a toilet may be extracted directly from the toilet bowl, and a hydraulic pump secured to a second end of the drive shaft to simultaneously obtain drive from the electric motor when the electric motor transmits drive to the extractor element.
    Type: Grant
    Filed: February 26, 1979
    Date of Patent: September 16, 1980
    Inventor: Ivan M. Baker
  • Patent number: 4165544
    Abstract: A system for eliminating odorous air from a bathroom stool of the type including a toilet bowl, a water tank connected by a discharge pipe to the toilet bowl, the water tank including a vertical open top overflow passageway connected to the discharge pipe so that water in excess of the desired level in the tank is dispensed into the toilet bowl and through which odorous air may be withdrawn from the toilet bowl, including a hollow open bottom vertical member positioned over the upper end of the overflow pipe, the sleeve lower end terminating below the normal water level in the water tank whereby a water seal is provided so that closed communication is established between the overflow passage and the sleeve, and an air pump having connection to the sleeve to move air from the stool through the overflow pipe and sleeve for remote exhaust.
    Type: Grant
    Filed: May 15, 1978
    Date of Patent: August 28, 1979
    Inventor: Bill H. Barry
  • Patent number: 4133060
    Abstract: Disclosed herein is a means for evacuating the odors associated with toilet use away from the environment of the bathroom and into the sewer. Vent means are provided around the periphery directly below the toilet seat, and impelling means are provided to channel the air traversing through these vents into the sewer outlet remote from the bathroom interior.
    Type: Grant
    Filed: May 18, 1977
    Date of Patent: January 9, 1979
    Inventor: Wayne Webb