Abstract: A flush toilet includes a bowl assembly defining a bowl. The bowl assembly has a discharge outlet at a lower end and a ledge circumferentially extending about a substantial portion of the bowl. The bowl has a rear surface that is generally flat and vertical. The rear surface transitions to the ledge as the bowl continues clockwise and counter clockwise from the rear surface. A horizontal dimension of the ledge increases as the ledge continues from the rear surface to a front of the bowl. An angle of the ledge increases as the ledge continues from the rear surface to the front. A maximum slope of the ledge is located proximate the front. A nozzle is mounted to the bowl assembly for pressurizing a source of flush water and delivering the source of flush water to the bowl for rinsing and flushing of the bowl.

Abstract: A reduced water consumption flush toilet for a motor vehicle includes a bowl assembly, a waste ball valve assembly and a water valve assembly. The bowl assembly defines a bowl and a discharge opening at a lower end of the bowl. The waste ball valve assembly is mounted to the flush toilet for selectively opening and closing the discharge opening of the bowl assembly. The water valve assembly delivers a source of flush water to the bowl. The water valve assembly includes a water valve operable in a water valve open condition and a water valve closed condition. The flush toilet further includes a common actuator for controlling both the waste ball valve assembly and the water valve assembly.

Abstract: A system for the remote operation of a flush valve employs a foot-pedal that is connected by a cable to an integrated drive bar, which is in turn disposed to engage the plunger of a standard flush valve actuator. Force on the pedal causes the drive bar to depress the plunger, thereby extending its tail portion into operative contact with the actuating element with the automatic valve.

Abstract: A hydraulic drive urinal flushing system includes a hydraulic cylinder having a piston reciprocated therein and a piston rod upwardly extended from the piston, a weight sensor mounted on the piston rod outside the hydraulic cylinder, and a valve connected to the hydraulic cylinder by a pipe for controlling the supply of flushing water to a urinal, the hydraulic fluid being forced out of the hydraulic cylinder into the valve to open the valve for letting flushing water pass to the urinal when the user steps on the weight sensor, the hydraulic fluid being returned from the valve to the hydraulic cylinder when the piston is moved downwards from the elevation of the pipe, the hydraulic fluid being forced out of the hydraulic cylinder into the valve to open the valve for letting flushing water pass to the urinal again when the user leaves from the weight sensor.

Abstract: A straight trap toilet apparatus mainly comprises a main body with a straight trap, a piston, and a toilet bowl. The water outlet of the main body is connected to a waste pipe, and the top of the main body is mounted below the toilet bowl. The main body has a water valve, wherein one end of the water valve is connected to an inlet tube connected to a water-faucet, and the other end of the water valve is connected to an outlet tube that corresponds to the spurt water hole of the toilet bowl. In normal condition, water flows from the outlet tube into the toilet bowel and the main body. A water tank is in fluid communication with the main body by a linking tube such that the water in the toilet bowel and the water tank are at the same level. The motion of the float ball will control a valve handle to control the water valve for controlling the water intake. The water from the outlet tube may gather together in the main body, the toilet bowel, and is in fluid communication with the water tank by a linking tube.

Abstract: A foot-operated device for the flushing valve of a wall-mounted urinal is shown. The device has a spring-biassed vertical rod which is connected to a pivot bar installed at the flushing valve of the urinal. The flushing valve may be actuated by a foot pedal provided at the lower end of the vertical rod. All components of the device is located in a spaced manner from the washroom floor such that they are not subject to contamination by water and other corrosive substances that are present on the washroom floor.

Abstract: A footflush adapter permits flushing of a toilet having a bowl and a stool and a flush lever extending from a side wall of a bowl without manual contact therewith, including an adapter plate supported to the stool bowl, a tubular support member received by the adapter plate and vertically supported by it, a rod slidably and vertically supported in the tubular support member, a chain connecting the member upper end to the flush lever, and a horizontal foot member affixed to the rod lower end so that by the user's foot the flush lever is pivoted to flush the stool.

Abstract: A pump comprising a flexible member defining at least part of a variable volume pumping chamber, an inlet valve to permit of liquid to enter the chamber thereby and an outlet valve to permit of liquid to leave the chamber thereby, and an operating member to deform the flexible member to vary the volume of the pumping chamber to pump liquid into and out of the chamber.

Abstract: An apparatus is disclosed for activating the flush valve handles of conventional toilet room fixture, such as urinals, with the user's foot. The apparatus provides for both horizontal and vertical adjustment. These adjustments provide the apparatus with the necessary flexibility required for adaptation of the device for use with most conventional toilet room fixtures. Use of the hands in actuating the flush valve handle is avoided, thereby providing for sanitary use and avoiding inadvertent contamination due to a prior user.

Abstract: A flush handle operator for independent installation at a toilet and operating the same through a foot pedal activated assembly and an activating assembly having a member engaged over the flush handle, and with a cable interconnection between the two assemblies.

Abstract: In an effort to avoid touching a toilet seat in a public restroom many men use their foot to raise the toilet seat. Many men do not even bother to lift the seat. This invariably results in the seat becoming wet, which is quite offensive for parties who must use the seat later. In the home it is desirable to have a toilet seat lifter available for use when company comes, and to maintain a high degree of cleanliness when the bathroom is used by both sexes. This is particularly true when there are children in the family. I have devised a readily operable toilet seat lifting device that can be elevated merely by stepping on a lever connected to the seat, and holding the lever in the depressed position during the time they are utilizing the facility. When the foot is released from the lever the seat returns to the horizontal position. When the device is in use both feet can be comfortably placed on the floor, and it is not necessary to have one foot elevated above the other.

Abstract: A foot actuated toilet seat lifter is disclosed in which a base member of substantially triangular cross-section is placed on the floor with the apex down. Foot pressure on one surface of the base pivots the base about the apex, causing a shaft to press upward on a bracket attached to the toilet seat, thus lifting the seat. A variety of base shapes are disclosed, together with a bellows for damping seat lowering, and optional means for securing the base to the floor or carpet. All parts are removable to aid in cleaning, and may be installed or removed without tools. The base member may optionally have a continuously curving lower surface, or may be formed of angled material to achieve the same effect as a triangular member. The resulting devices have the advantage of employing very few parts when compared to some prior art lifters.

Abstract: A pedal operated flushing system includes a hydraulically-actuated flush valve connected to a hydraulic fluid source by a supply line having a control valve therein. The control valve is mounted on a pocket portion of a bracket, the pocket forming an enclosure about an opening in a wall. A pedal is hinged to the bracket and normally covers the wall opening. The pedal pivots into the enclosure to actuate the control valve. A spring interposed between the pedal and control valve absorbs overtravel of the pedal toward the valve.

Abstract: A pneumatic actuating device for a toilet flush valve, comprising a cap emplaced on the flush valve housing and having an integral hemispherical bell member extending laterally therefrom, the bell member containing a resilient membrane. A manual pusher provided with a similar hemispherical membrane is connected to the bell member by a hose. A pipe which carries the flush valve plate is connected to a hood having a piston which extends into the membrane in the bell member. Upon actuation of the manual pusher, air flows through the hose, deforming the membrane in the bell member and causing it to lift the piston, thereby opening the flush valve.

Abstract: A male urinal automatically flushes when the user steps off a foot plate. The foot plate pneumatically sealed is resiliently deformable and is connected by a pneumatic conduit to a normally open switch whose closure completes a circuit that opens an electrically controlled valve to flush the urinal so long as the switch is closed. Release of pressure on the foot plate creates subatmospheric pressure as the foot plate returns to its undeformed condition, which collapses a diaphragm that permits the normally open switch to close. An air bleed restores the pressure in the foot plate to atmospheric at a controlled rate that predetermines the duration of flushing.