William F. Semple, a dentist, was awarded the first US Patent on chewing gum in 1869. His recipe contained powdered chalk.
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| Number | Title | Issue Date |
| 8082611 | Portable washing device A portable washing device that combines a base unit, an attached reservoir unit, and a volume of water to create a mobile and easily transportable washing device. The reservoir unit is located above the base unit and includes an attached faucet assembly that allows ... | 12/27/2011 |
| 7802327 | Portable training sink and vanity for children A portable and compact children's training sink is provided with a main housing having a basin, a drain hole disposed in the basin, and a back splash panel substantially adjacent to, behind, and projecting above the basin. Support legs support the main housing, incl... | 09/28/2010 |
| 7743439 | Portable sink A portable sink having a hot and cold water faucet connected to an electric water pump and fresh water tank and a wastewater outlet from said sink connected to a wastewater tank and cabinet mounted on wheels having one upper door that has a dipwell attached that is ... | 06/29/2010 |
| 7730561 | Used water removal system for a portable, hand-wash sink station A used water removal system for a stand-alone hand-wash sink station having a vertically elongated used water storage tank and within which a vertically elongated, fresh water tank is positioned. A sink basin disposed above the used water storage tank drains used wa... | 06/08/2010 |
| 7441286 | Portable utility sink A portable utility sink with a cart that is collapsible for easy transport in a car. A detachable sink that sits on top of the cart when open. The faucet has the fresh water container attached above to allow for a downward flow of water that makes this sink powerles... | 10/28/2008 |
| 7331070 | Portable sink for the handicapped A portable sink includes first and second storage tanks for storing clean and dirty water respectively and a concave basin between the two tanks. The sink also includes a plastic base member that supports the clean water tank above and to one side of the base and th... | 02/19/2008 |
| 7240379 | Portable sink for hand-dipped ice cream, gelato, frozen yogurt, and frozen custard catering and vending A portable sink having a hot and cold water faucet connected to an electric water pump and fresh water tank and a wastewater outlet from said sink connected to a wastewater tank and cabinet mounted on wheels having one upper door that has a dipwell attached that is ... | 07/10/2007 |
| 7159252 | Folding sink A sink may include a basin and a faucet assembly foldably mounted relative to the basin. The faucet assembly is rotatable between an upright position wherein the faucet assembly protrudes out from the basin and a folded position wherein the faucet assembly is receiv... | 01/09/2007 |
| 6976279 | Eye injury treatment station A portable stand alone treatment station for eyes which have been exposed to corrosive liquids, noxious gases and foreign objects. An eye washing fluid reservoir and one or more applicators are mounted on a two-wheel cart. The eye washing fluid in the reservoir is s... | 12/20/2005 |
| 6959460 | Portable wash basin device A portable wash basin device is disclosed. The device includes a sink for receiving fresh water therein for permitting a user thereof to wash. The sink defines an open top for the reception therein of the fresh water so that the user thereof is permitted to wash the... | 11/01/2005 |
| 6913598 | Handheld eye washing apparatus This is a handheld eye flushing apparatus that comprises an eyecup that holds eyewash liquid in it for eye flushing. The rim of the eyecup is contoured to the eye orbit and rests on the eye orbital area. Attached to the inside of the eyecup is a stirring mechanism t... | 07/05/2005 |
| 6905039 | Modular utility assembly Systems and methods for providing one or more utilities are disclosed. An apparatus for providing one or more utilities includes a first module, an interface coupled to the first module, and a mounting member coupled to the interface. The mounting member is configur... | 06/14/2005 |
| 6848126 | Washing bowl mobile chair A mobile, portable washing bowl or bidet, sink bowl and shower primarily for use indoors. The system uses running water and there is no need for electronic pumps. The entire device is easily transported and meets the personal hygiene needs of people with limited mob... | 02/01/2005 |
| 6611972 | Sink with foldable faucet assembly and multiple-purpose support structure A sink comprising a basin and a faucet assembly foldably mounted relative to the basin. The faucet assembly is rotatable between an upright position wherein the faucet assembly protrudes out from the basin and a folded position wherein the faucet assembly... | 09/02/2003 |
| 6574805 | Collapsible sink device A collapsible sink device includes a collapsible frame movable between an extended position and a collapsed position and a sink detachably mounted on the collapsible frame. The collapsible frame includes four legs and two foldable plank assemblies each in... | 06/10/2003 |
| 6446277 | High-capacity method and system of chemical and/or radiological decontamination A high-capacity chemical and/or radiological decontamination system including: a shower unit (1) designed to shower persons individually with a regeneratable active product for a predetermined time ranging between 5 and 20 seconds; a collecting device (14... | 09/10/2002 |
| 6405939 | Voice-activated shower system A voice-controlled shower system for use with a conventional shower assembly includes sources of hot and cold water, a showerhead, and a conduit for delivering water from the water sources to the showerhead. Each water source includes a control valve coup... | 06/18/2002 |
| 6401274 | Transportable modular washstand A central steel column serves as a core module for a portable washstand. The column extends upwardly from a horizontal foot, and has foot pumps which communicate with a water intake tube and with water spouts. In addition, the central column has fasteners... | 06/11/2002 |
| 6402776 | Apparatus inducing physical and mental relaxation, by flow of a tempered liquid on the forehead The invention concerns an apparatus for inducing deep physical and mental relaxation, consisting of a housing containing both a collector (4) and a reservoir (5) wherein are housed a pump (1) and a thermostat heater (2). The liquid contained in the reserv... | 06/11/2002 |
| 6256809 | Pollution prevention system There is disclosed a waste prevention system which avoids the discharge, inadvertent or otherwise, of laboratory waste, into a public sewage system and subsequently into the natural environment. The system employs, in combination, a laboratory sink having... | 07/10/2001 |
| 6256803 | Baby changing and washing station A baby changing and washing station is disclosed, designed as an apparatus to aid in the washing and/or cleansing of an infant. The present invention comprises a frame that is attached to a wall and provides for a fold down table portion, similar in desig... | 07/10/2001 |
| 6173458 | Portable self contained sink and water storage cart A portable sink having a sink module and a hot and cold water outlet connected to a spigot and a used water outlet from said sink connected to a cabinet mounted on wheels having at least one door to access the interior thereof. At least one tank for fresh... | 01/16/2001 |
| 6161228 | Portable sink apparatus and methods of manufacture and use thereof Portable sink apparatus attachable to an external, portable reservoir capable of containing a supply of fluid and attachable to an external, portable reservoir capable of containing spent or waste fluid, and methods of manufacture and use thereof.... | 12/19/2000 |
| 5938261 | Mobile beverage station A mobile beverage station includes a trailer booth and wheels. The front of the trailer booth is curved and formed at least in part by a plurality of flat windows. The station may have an escape hatch in the roof, and the wheels may be out from under the ... | 08/17/1999 |
| 5918323 | Hospital liquid sanitation cart Mobile hospital liquid sanitation cart for convenient and safe collection and ready transport and disposal of liquid waste from patients. A cuplike receptor on flexible tubing is extended to receive waste liquid and convey it to temporary storage in the c... | 07/06/1999 |
| 5704078 | Portable sink A portable sink is particularly adapted for use in a portable toilet and includes a cabinet in which a conventional five gallon bottle of water can be retained. The sink is designed to drain into the portable toilet, and a supply of deodorizing soap opera... | 01/06/1998 |
| 5687434 | Portable stand-alone sink unit A portable wash station, comprising an outer water tank, a flexible inner water tank secured within the outer tank, and a sink basin affixed atop the outer tank including at least one sink, one water faucet for dispensing water from the outer tank and one... | 11/18/1997 |
| 5548856 | Mobile sanitation station A mobile sanitation that includes at least one conventional self-contained chemical toilet and at least one hand washing system that are mounted together onto a flat bed of a trailer. The self-contained chemical toilet or toilets are arranged to gravity d... | 08/27/1996 |
| 5393228 | Dental prophylaxis and water conservation device A dental prophylaxis and water conservation device for in-home use. The device includes a tank coupled to the household water supply line and adapted to receive water which causes air contained within the tank to be pressurized. The water and air from wit... | 02/28/1995 |
| 5301376 | Portable sink apparatus A portable sink arranged for ease of transport and storage includes a central housing having respective lower and upper housings positioned on opposed sides of the central housing, wherein the upper housing includes a fluid reservoir structure arranged fo... | 04/12/1994 |
| 5291678 | Electric sign wiring identification A method or system, and the appropriate structural components therefor to allow for readily identifying which particular coded load side conductors of a ballast feed which particular lamp sockets and thus lamps of an advertising sign illuminated by flores... | 03/08/1994 |
| 5287570 | Control system for water faucets A control system for water faucets comprises an on-off control switch located at a sink and actuated by pressure applied and released by the body of the user. When the body of the user pushes forward towards the sink, the switch will be depressed and the ... | 02/22/1994 |
| 5277209 | Pumpless parts washing apparatus A fluid dispensing apparatus is provided with at least two identically configured reservoirs, each of which may be functionally adapted to serve as the washer portion or the collecting portion of the apparatus.... | 01/11/1994 |
| 5245713 | Hair washing unit A hair washing unit for washing the hair of bedridden patients is formed as a unitary, hollow, rotationally moulded shell. The shell has a peripheral wall surrounding a central recessed well. A U-shaped depression in a front part of the wall merges smooth... | 09/21/1993 |
| 5182822 | Child's sink apparatus A cabinet structure includes side walls, a floor, and a rear wall, and a top wall mounting a concave sink therewithin. The sink is operative through a manually operative pump and an underlying reservoir to direct fluid into the sink, with a drain associat... | 02/02/1993 |
| 5165456 | Diverter apparatus and method for saving fresh water A diverter apparatus and method of saving fresh water from being wasted while one waits for the cold or lukewarm water that accumulates in a hot-water pipeline to pass therethrough before the usable hot water begins discharging from a shower fixture or fr... | 11/24/1992 |
| 5056166 | Self-contained RV sanitary systems A self-contained sanitary fixture, particularly for a recreational vehicle, comprises a bench supported on a base cooperatively defining a stowage compartment. The bench contains a bowl having an outlet which connects to a tank in the storage compartment.... | 10/15/1991 |
| 4769863 | Hand wash unit A portable hand wash unit is comprised of a tank having a dispenser housing hinged to the upper portion of the tank. The dispenser housing is shaped to define a pair of wash basins, each having a water outlet connected in continuous communication with a m... | 09/13/1988 |
| 4758237 | Device for applying liquid to the corneal surface of the eye A device for applying a liquid to an eye has a liquid accommodating chamber with an opening limited by an edge so that the user's eye can be placed into contact with the edge with an eye surface facing toward the interior of the chamber, and a liquid circ... | 07/19/1988 |
| 4747169 | Portable sink with pressurized water supply The portable sink includes a main case having an open top and a hinged cover. In place in the main case is an inside case and a sink bowl unit. A supply tank is removably fitted in the inside case. The supply tank is generally closed, but having a filling... | 05/31/1988 |