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The ice cream cone was invented at the St. Louis Worlds Fair by Ernest Hamwi in 1904. His waffle booth was next to an ice cream vendor who ran short of dishes. Hamwi rolled a waffle to hold ice cream and the cone was born.
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| Number | Title | Issue Date |
| 8060952 | Odor removal system and overflow safety system for toilets An odor removal system, in particular an odor removal system for use with flush toilets. The present invention includes an exhaust system, and a rim. The rim of the toilet is connected to the toilet vent via an outlet located on the toilet. The present invention imp... | 11/22/2011 |
| 7614092 | Power vented odorless non-overflow auto flush toilet A toilet assembly with a turbine bladed fan powered vent that is timed by user position and a shut-off delay. The vent discharges to a vertical gutter vent stack behind an adjacent wall. An automatic overflow control system is provided, if a clog occurs, including a... | 11/10/2009 |
| 7331066 | Ventilation system for multiple toilets in a building Separate air evacuation opening and a separate manifold are formed in the toilet bowl rim for full and separate air evacuation of the toilet bowl before, during or after flushing. The exhaust assembly includes and is activated by a fan and motor exhaust assembly com... | 02/19/2008 |
| 7275271 | Toilet evacuation system A ventilation system for a toilet which functions by drawing air from around the bowl through the original flush holes into the existing overflow-pipe and then into a fan compartment. The fan is activated by manipulating the flush handle upward. Malodorous air is th... | 10/02/2007 |
| 7204670 | Water removal from a compressor air inlet duct The air duct leading to a compressor for a gas turbine or the like often has water accumulating on walls and other structures. Water is removed from the compressor air inlet duct by drains connecting to the inside of the duct, including horizontal and vertical walls... | 04/17/2007 |
| 7162751 | Ventilated toilet system A ventilated toilet system with a toilet bowl, a toilet tank and a ventilation system. The ventilated toilet system has a vacuum system motor to expel odors from the ventilated toilet system via odor exhaust piping of varying widths, with an impeller and a housing f... | 01/16/2007 |
| 7120942 | Toilet ventilation system A toilet ventilation system for efficiently removing odors from a toilet. The toilet ventilation system includes a ventilating unit attachable to a toilet having a front opening and a passage fluidly connected to the front opening, and one or more connector tubes fl... | 10/17/2006 |
| 7117548 | Toilet ventilation system A toilet ventilation system comprising a seat mounted atop a typical toilet bowl and pivoting about a seat swivel mount, the seat with vacuum intake holes disposed on the lower side, the intake holes communicating with a vacuum canal within the seat; the vacuum cana... | 10/10/2006 |
| 7103925 | Odor eliminating system for a toilet, toilet including the odor eliminating system, and toilet seat assembly An odor eliminating system utilizes an air pump to remove odors from a bowl of a toilet to a trap of the toilet. By moving the odors to the trap, the odors cannot escape back to the bowl and can only proceed out of the toilet to the sewer. The system can be adapted ... | 09/12/2006 |
| 6983491 | Odor removal apparatus and/or methods An odor removal apparatus for a toilet wherein the apparatus and toilet has a bowl, an outlet from the bowl and a barrier between the bowl and the outlet which substantially prevents odors from the outlet passing to the bowl. A gas extraction apparatus is in communi... | 01/10/2006 |
| 6944888 | System for venting noxious fumes from a toilet A system for venting noxious fumes from a toilet. A toilet seat weight-sensing switch operatively connects to a fan and activates when the seat of the toilet is sat upon. A toilet flush handle switch activates when the flush handle of the toilet activates. A timer c... | 09/20/2005 |
| 6928666 | Toilet with self-contained ventilation system A ventilation system is self contained on a toilet. The ventilation system has an enlarged vent pipe located in the water tank that communicates with the upper rim ducts of the toilet bowl. The vent pipe extends out of the water tank and reenters the toilet via the ... | 08/16/2005 |
| 6694534 | Toilet ventilation system A ventilation system (10) for a conventional flush toilet (100) generally comprises a battery (20); an air sweetener (30) in a water tank (140) for deodorizing or scenting air (90D); an air flow device (40) positioned within a tank (140) including a duct ... | 02/24/2004 |
| 6643850 | Odor removal system An air filter assembly including a frame, a filter and an odor eliminator liquid. The frame forms an air flow channel. The filter is connected to the frame in the air flow channel. The filter includes at least one filter element. The odor eliminator liqui... | 11/11/2003 |
| 6629319 | Air ventilation system An apparatus which incorporates an air ventilation system into a standard toilet seat is disclosed. The apparatus would connect a filtration system to the rear half portion of a toilet seat by a plurality of ventilation pathways, which would connect to tw... | 10/07/2003 |
| 6584620 | Detachable toilet ventilation system An exhaust head mounted detachably to a toilet side includes a collection portion that extends inward toward the toilet bowl between the toilet base and toilet seat to collect toilet gases. The head conforms to the shape of the toilet base with a thin pro... | 07/01/2003 |
| 6519786 | Toilet splash shield system The toilet splash shield system prevents urine and waste from splashing out of a toilet bowl, and includes a toilet bowl having a rim having upper and lower sides and front and back ends. The rim has a bore extending therethrough, and the bore is in commu... | 02/18/2003 |
| 6499150 | For a toilet for automatically exhausting odious air therefrom A toilet that exhausts odious air therefrom. The toilet includes a bowl, a main trap, a housing, a secondary trap, and a fan. The bowl has a rim and contains a chamber that communicates with the rim and receives human waste that produces the odious air. T... | 12/31/2002 |
| 6496986 | Toilet bowl venting device Disclosed is a venting device for removing unpleasant odors directly from inside the toilet bowl where most offensive odors originate. The odor is removed by means of an adjustable air intake which projects into a tubular device that attaches by means of ... | 12/24/2002 |
| 6367092 | Charge transfer capacitance sensing and control system for an integrated venting system A capacitance charge transfer sensing and control system for a venting system. Preferably the sensing and control system is used with a toilet having an integrated venting system which includes ducting communicating with an exhaust air passageway located ... | 04/09/2002 |
| 6295656 | Venting apparatus for flush toilets 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 cooperates with the toilet bowl for removal of gases in the bowl ... | 10/02/2001 |
| 6219853 | Toilet ventilation system A toilet ventilation system including a toilet bowl having a plurality of ports for directing water into an interior of the bowl. The toilet includes a tank for holding water, and an interior passageway for conveying water from the tank to the ports of th... | 04/24/2001 |
| 6209146 | Ventilation device for a toilet 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 posi... | 04/03/2001 |
| 6202226 | Portable waste odor collection apparatus 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... | 03/20/2001 |
| 6173453 | Toilet venting system 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 con... | 01/16/2001 |
| 6158058 | Ventilated toilet 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 ventil... | 12/12/2000 |
| 6131210 | Ventilated mobile home toilet 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... | 10/17/2000 |
| 6073275 | Multifunction toilet 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 a... | 06/13/2000 |
| 6073273 | Venting apparatus for flush toilets 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 val... | 06/13/2000 |
| 6041449 | Apparatus and method for treating objectionable odors in toilet bowls and the like 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 mount... | 03/28/2000 |
| 5991933 | Toilet with odor removal tube 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... | 11/30/1999 |
| 5930844 | Commode valving arrangement 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... | 08/03/1999 |
| 5906009 | Toilet bowl noxious fume and mist evacuation 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 disinf... | 05/25/1999 |
| 5839127 | Odor extractor apparatus 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 ... | 11/24/1998 |
| 5813060 | Multifunction toilet 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 a... | 09/29/1998 |
| 5745927 | Apparatus for lavatory bowl ventilation 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... | 05/05/1998 |
| 5727263 | Toilet ventilation system 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 througho... | 03/17/1998 |
| 5715543 | Toilet assembly having an automatic ventilation system 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 obj... | 02/10/1998 |
| 5704074 | Toilet gas suction vent 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 i... | 01/06/1998 |
| 5361422 | Toilet ventilating system 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 ex... | 11/08/1994 |
