Siphonic Jet At Trap Patents (Class 4/425)
  • Patent number: 6651266
    Abstract: A toilet flushing method causes high-pressure flush water, provided by a flow pipe, to spray along the baffle in the bottom of the trap of a toilet bowl and causes the flush water used for washing the toilet bowl to spray into the toilet bowl. The high-pressure flush water discharges the egesta with water in order to supply sealing water to the trap. A toilet, which uses components for improving the prior art toilet, carries out the flushing method.
    Type: Grant
    Filed: March 19, 2002
    Date of Patent: November 25, 2003
    Assignees: Beijing Zhonglian Huan-Jietong, Water-Saving Technology Co., Ltd.
    Inventors: Cheng Liu, Bing Hua Chen, Sili He
  • Publication number: 20030106145
    Abstract: The present invention provides an open/close valve which contributes the stabilization of the operation responsibility. A housing has a water-in port and a water-out port. Furthermore, a piston which is slidably mounted in the housing in an axial direction by means of an external operation of a shaft, and a pressure offset means for offsetting the pressure which the piston receives from water in the water-out port to the other side are provided. The piston is attached to a seat face of the housing by being slided on one side in an axial direction to close the communication between the water-in port and the water-out port, and the piston is detached to the seat face of the housing by being slided on the other side in an axial direction to open the communication between the water-in port and the water-out port. The pressure offset means comprises a pressure offset room which is formed at the other side of the piston, and a passage for communicating one side of the piston with the pressure offset room.
    Type: Application
    Filed: December 23, 2002
    Publication date: June 12, 2003
    Inventors: Katsunori Tomita, Kenichi Ito, Koji Miwa, Shingo Morikawa, Yasuhiro Shirai, Masataka Mizutani, Shoichi Nakamura, Hideya Koike, Hidefumi Toyoshi, Atsushi Itoh
  • Publication number: 20030101509
    Abstract: A flush toilet comprises a toilet body, a first means for supplying wash water, a second means for discharging wash water, a third means for operating as a valve disposed between the first means and the second means, a fourth means for switching the third means, a fifth means for driving the fourth means, a mechanical timer and a sixth means for being manipulated to supply the fifth means with strain energy. The fifth means releases the strain energy accumulated in it to drive the fourth means, and the mechanical timer consumes a part of the strain energy released from the fifth means to regulate duration of the operation of the fifth means.
    Type: Application
    Filed: September 25, 2002
    Publication date: June 5, 2003
    Inventors: Shimbara Noburu, Tsukada Ryoichi, Watanabe Kazuyuki, Hirakawa Tomohiro, Uchimura Yoshinobu
  • Publication number: 20030088910
    Abstract: A flush toilet comprises a toilet body having a bowl for storing wash water as water seal, first means for supplying the toilet body with pressurized wash water and second means for discharging the wash water substantially horizontally along the upper peripheral portion of the inner surface of the bowl to swirl it along the inner surface of the bowl.
    Type: Application
    Filed: September 25, 2002
    Publication date: May 15, 2003
    Inventors: Miyahara Hidetaka, Noda Shosaku, Shimbara Noboru, Shibata Shinji, Shinkawa Masahiro, Matsuo Nobusuke
  • Patent number: 6502251
    Abstract: A flush toilet 1 has a toilet flushing tank device 7 for discharging flushing water to a toilet bowl 2. This tank device is built into a tank storage region 5 to the rear of the toilet bowl 2, and comprises a flushing water tank 8 and a jet pump 13 disposed submerged in this flushing water tank 8. Flushing water (operating water) is supplied to this jet pump 13 via a flush valve 11 and a pipe 12 downstream from this valve. The jet pump 13 comprises a spray nozzle 131 and a throat 132 opposite thereto. Because the jet pump 13 is connected directly to a pipe 14, all of the flushing water jetted from the jet pump 13 passes directly to the pipe 14, and is guided by this pipe 14 to a rim water channel 4b.
    Type: Grant
    Filed: April 30, 2001
    Date of Patent: January 7, 2003
    Assignee: TOTO Ltd.
    Inventors: Kunihiko Teshima, Tatsuhiro Kosugi, Taiji Sugita, Takayuki Ohtani, Kenichi Nagato, Yoshitaka Suehiro
  • Patent number: 6470505
    Abstract: A water efficient toilet includes a self pressurized tank connected to a water supply through conduits and includes a valve operatively connected to the conduits. The toilet assembly has a bowl with inner walls, the bowl having a lower reservoir connected to a trap way and an upper rim with a channel therein. The channel is provided with a plurality of openings and the lower reservoir of the bowl has through holes. The through holes of the lower reservoir and the channel of the upper rim of the bowl are connected to the valve by a first and second conduit. When flushing the toilet by opening the valve, a phased inflow of water in the toilet is induced. The phased inflow of water includes an initial and an intermediate inflow of water. The initial inflow of water passes into the first conduit and through the through holes of the lower reservoir to initiate the evacuation of the contents of the lower reservoir through the trap way into a drain pipe.
    Type: Grant
    Filed: February 22, 2000
    Date of Patent: October 29, 2002
    Assignee: Perfecteau LLP
    Inventor: Paul Boisvert
  • Patent number: 6415457
    Abstract: The flushing device comprises a flush bowl (1) comprising an odor trap (8) on a bottom part (7) and comprises a flushing conduit (2) with flushing openings (14, 15, 16) on an upper edge (3). Flushing openings (14) in a frontal area (13) of the flushing conduit (2) have a greater throughput than laterally arranged flushing openings (15, 16) do. The flushing openings (4) in said frontal area (13) are arranged in an asymmetric manner and the flushing water (17) forms a flushing vortex (17c) in the bowl (11). The flushing device makes it possible to effectively flush with less flushing water.
    Type: Grant
    Filed: May 22, 2000
    Date of Patent: July 9, 2002
    Assignee: Geberit Technik AG
    Inventor: Peter Schmucki
  • Patent number: 6367095
    Abstract: A flushing device has two water outlets, wherein one outlet is connected to an arch of a trap of the toilet bowl. This outlet is connected to means with which a portion of the flushing water present in a flushing tank can be pressurized and released to this outlet. The water is briefly set into motion with the pressurized flushing water, and more effective emptying of the trap is achieved. The flushing device according to the present invention represents a lower load for the water pipes and operates with less noise than flushing valve-type devices.
    Type: Grant
    Filed: January 29, 2001
    Date of Patent: April 9, 2002
    Assignee: Geberit Technik AG
    Inventors: Alex Hubatka, Thomas Riehm, Paul Wey
  • Patent number: 6145138
    Abstract: The flush toilet has a waste receipt surface section (10) of a bowl section (1) formed continuously integrally with an inner rim wall surface section (15) of the rim portion disposed at a peripheral edge of an upper opening (13) of the bowl section (1) as a curved surface; and the inner rim wall surface section (15) of the rim portion acts as a flush water passage (16) of the bowl section. The flush water passage (16) of the bowl section is further configured such that the inner rim wall surface section (15) of the rim portion is shaped in an overhanging form inclining so as to hang over inside of the bowl section (1). The flush toilet of this configuration can be cleaned with ease and kept clean in sanitation.
    Type: Grant
    Filed: April 14, 1999
    Date of Patent: November 14, 2000
    Assignee: Toto Ltd.
    Inventors: Kenichi Nakamura, Toshifumi Yoneda
  • Patent number: 6115853
    Abstract: When a cleaning button for cleaning the toilet bowl is operated, by a manner as pressing, a switching valve 41 switches the flushing water supply destination to a position for cleaning the bowl part. The flushing water is then jetted out of a spout nozzle 35 disposed inside a Z water conduit 161 as a jet flow. The jet flow from the spout nozzle 35 causes water inside the Z water conduit 161 and water inside the flushing water reservoir 104 to flow through the Z water conduit 161 and to be spouted toward an inlet 121 of a waste trap 102, like a jet flow spouted by a jet pump. This supplies a heavy flow of flushing water amplified in the volume into the waste trap 102 all at once to flush out the filth in the bowl part 101.
    Type: Grant
    Filed: December 31, 1998
    Date of Patent: September 12, 2000
    Assignee: Toto Ltd.
    Inventors: Shinji Shibata, Takeshi Takaki, Yumiko Kataoka, Kiyoshi Fujino, Takenori Fukushima, Shingo Tanaka, Hiroshi Tsuboi, Hidetaka Miyahara
  • Patent number: 6000070
    Abstract: A toilet provides a traditional water filled bowl with flushing action as well as a bidet in one unit. Heated air is forced into the toilet bowl interior and directed onto bidet washed surfaces for drying. Water is directed into the bowl under pressure for flushing and for operating the bidet. The upper rim of the toilet bowl contains a channel which dispenses flush water downwardly for cleaning the interior of the toilet during flushing. Flush water is also directed from two additional outlets to provide flushing action. The toilet is fixtured for wall mounting at an adjustable height which may be changed by merely repositioning mounting bolts on a pair of vertical supports. Sewage pipes are telescoping or extendable for accommodating a vertical positioning range.
    Type: Grant
    Filed: November 19, 1998
    Date of Patent: December 14, 1999
    Inventor: Pete J. Bonin
  • Patent number: 5926863
    Abstract: A water-closet bowl which comprises a bowl part provided with a wash water delivery opening on the wall surface; a substantially inverted U-type trap water discharge channel formed adjacent to the bottom of the bowl part and communicating with the bowl part through the inflow opening at the bottom; a tank for storing wash water provided at the rear, upper portion of the bowl part and having a discharge opening at the bottom; a wash water-distributing part provided substantially just under the discharge opening of the tank and used for receiving the wash water from the tank and distributing it; a rim water path formed on the periphery at the upper end of the bowl part; a rim part having a plurality of wash water injection holes provided in communication with the rim water path; a first water channel communicating between the wash water-distributing part and the wash water delivery opening; and a second water channel communicating between the wash water-distributing part and the rim water path.
    Type: Grant
    Filed: January 22, 1997
    Date of Patent: July 27, 1999
    Assignee: Toto LTD.
    Inventors: Kinya Arita, Ryoichi Tsukada, Shinji Shibata
  • Patent number: 5832546
    Abstract: A flush toilet (10) is operated by a flushometer (14) which passes water to a water chamber (36). The chamber is sized to assure that the bottom (48) of the toilet bowl and waste outlet (22) are resealed against sewer gas backup. The chamber has outlets (30) and (32) that direct water to a jet outlet (20) and a rim rinse outlet (21) to flush the toilet and provides drainage of water after the flushometer is closed to reseal the toilet bowl (12).
    Type: Grant
    Filed: November 12, 1996
    Date of Patent: November 10, 1998
    Assignee: Metcraft, Inc.
    Inventor: John D. Inch
  • Patent number: 5803114
    Abstract: A flush toilet system includes a bowl that is drained in a flush operation through a flow path including a trap and a siphon. A bypass passage supplies a back jet of water in the reverse flow direction in the flow path. A back jet valve assembly opens to permit back jet flow during only the first part of the interval during which flush water is supplied to the system from a water supply. The kinetic energy of the back jet is converted to static pressure to block or impede flow of flush water through the flow path. Water level increases in the bowl, and when the back jet flow is discontinued a siphon flush operation proceeds. The back flush valve assembly also releases water after the flushing operation in order to reseal the trap.
    Type: Grant
    Filed: March 8, 1996
    Date of Patent: September 8, 1998
    Assignee: American Standard Inc.
    Inventor: Dwight N. Johnson
  • Patent number: 5666675
    Abstract: The flushing means has a flushing tank, which is connected to a flushing channel of a toilet bowl via a flushing elbow and to a nozzle (jet) via a connection pipe. During flushing, part of the flushing water is released from the top into the toilet bowl via the flushing elbow and the flushing channel, and another part is released into the lower area of the toilet via the connection pipe and the nozzle. The flushing water entering the nozzle is taken up by an opening of the connection pipe, which extends into the flushing elbow and is always open. To prevent the connection pipe from being suctioned empty and consequently to prevent the suctioning of a suction siphon from being interrupted, the connection pipe has a hydraulic seal, which hydraulically seals this pipe against a vacuum at the outlet opening of the connection pipe during a suction process. Valves and the like, which are susceptible to the deposition of lime, are not employed.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: September 16, 1997
    Assignee: Geberit Technik AG
    Inventor: Urs Ruegg
  • Patent number: 5515556
    Abstract: A flush toilet system includes a bowl that is drained in a flush operation through a flow path including a trap and a siphon. A bypass passage supplies a back jet of water in the reverse flow direction in the flow path. A back jet valve assembly opens to permit back jet flow during only the first part of the interval during which flush water is supplied to the system from a water supply. The kinetic energy of the back jet is converted to static pressure to block or impede flow of flush water through the flow path. Water level increases in the bowl, and when the back jet flow is discontinued a siphon flush operation proceeds. The back flush valve assembly also releases water after the flushing operation in order to reseal the trap.
    Type: Grant
    Filed: July 25, 1994
    Date of Patent: May 14, 1996
    Assignee: American Standard Inc.
    Inventor: Dwight N. Johnson
  • Patent number: 5502845
    Abstract: A flush toilet stool includes a toilet bowl and a trap drainage passage connected to the toilet bowl. The toilet bowl has a water jet hole defined in a bottom region thereof and opening toward the trap drainage passage. A pressurizing unit such as a water pump is coupled to the water jet hole for drawing water under lower pressure directly from an external water supply and expelling the water under higher pressure through the water jet hole toward the trap drainage passage to develop a siphon flow to discharge sewage from the toilet bowl through the trap drainage passage.
    Type: Grant
    Filed: March 19, 1993
    Date of Patent: April 2, 1996
    Assignee: Toto Ltd.
    Inventors: Ryosuke Hayashi, Katsuichi Irifune, Yoshiki Ohta, Takashi Yoshioka, Osamu Tsutsui, Atsuo Makita, Ryouichi Tsukada, Shinji Shibata, Noboru Shinbara, Takayuki Ootani, Nobuichiro Ohsato
  • Patent number: 5306315
    Abstract: Poly(alkylene ether) amines having the formula: ##STR1## wherein A is an amine moiety having at least one basic nitrogen atom; R.sub.1 is a hydrocarbyl group having a sufficient number of carbon atoms to render the poly(vinyl ether) amine soluble in hydrocarbons boiling in the gasoline or diesel fuel range; R.sub.2 is an alkylene group having 2 to about 8 carbon atoms; R.sub.3, R.sub.4, R.sub.5, R.sub.6, R.sub.7 and R.sub.8 are each independently hydrogen or a lower alkyl group having 1 to about 4 carbon atoms; R.sub.9 is an alkyl group having 1 to about 10 carbon atoms; m is 0 or 1; and n is an integer from 5 to 99. The poly(vinyl ether) amines of formula I are useful as fuel additives for the prevention and control of engine deposits.
    Type: Grant
    Filed: April 1, 1993
    Date of Patent: April 26, 1994
    Assignee: Chevron Research and Technology Company
    Inventor: Richard E. Cherpeck
  • Patent number: 5218726
    Abstract: A water conserving toilet having a set of holes around the rim to provide a washing of the bowl includes enlarged holes towards the front of the rim to create a focused jet of water used to initiate siphon action. The enlarged holes are positioned on an elevated multi-plateau boss within the rim. The boss extends beyond the highest normal level of water in the rim and has a vent to vent air from the rim. A sloped entry within the receiving chamber connects the tank of the toilet to the rim to further increase the momentum of this water. The jet from the enlarged front holes in the rim is further focused by a groove extending on the bowl's lower wall.
    Type: Grant
    Filed: August 9, 1991
    Date of Patent: June 15, 1993
    Assignee: Kohler Co.
    Inventors: Norman J. Jaeckels, Fred Ogreenc
  • Patent number: 5204999
    Abstract: A flush water supply system comprising a passageway valve mounted in a pipeline for supplying flush water to a toilet stool, and a control circuit for controlling the closing and opening of the passageway valve. A constant flow valve is mounted in the pipeline for keeping a predetermined amount of discharge flow, irrespective of water supply pressure.
    Type: Grant
    Filed: June 10, 1991
    Date of Patent: April 27, 1993
    Assignee: Toto Ltd.
    Inventors: Atsuo Makita, Hirofumi Takeuchi, Shinji Shibata, Noboru Shimbara
  • Patent number: 5067181
    Abstract: An improved blow out toilet having remarkably low water volume usage. The toilet is of the type having a toilet bowl including a rinse ring having a rinse water nozzle directing water therein and a trap including a flush water nozzle. The improvement includes the reshaping of the toilet bowl and the reduction in size and reshaping of both the rinse water orifice and the flush water orifice.
    Type: Grant
    Filed: March 13, 1990
    Date of Patent: November 26, 1991
    Assignee: Acorn Engineering Company
    Inventors: V. Walter Hafner, Keith D. Marshall
  • Patent number: 5054133
    Abstract: A low consumption toilet fixture (10) has a bowl (20), a tank (16) having a central exit (43), a waterway passage extending from the tank to the bowl (20) and an angled trap (22) that has a bottom well (24). The downstream end (34) of the trap (22), inlet (42) of the waterway, and well (24) all bisect a central vertical reference plane which divides the toilet into two halves. The angled trap has an intermediate upper section (30) which is laterally offset with respect to the inlet (42) of the waterway (21) and has a height greater than a lower wall (50) of the horizontal leg (44) of the waterway that extends from the central inlet (42). The waterway (22) has an exit opening into the well (24). The exit has an upper groove (49) and notch (51) directing water into the bottom of bowl (20). The well (24) is canted laterally and forwardly downwardly with respect to the central vertical reference plane.
    Type: Grant
    Filed: April 26, 1989
    Date of Patent: October 8, 1991
    Assignee: Masco Corporatiopn of Indiana
    Inventors: Daniel A. Pickerrell, Donald C. Schrock, John Inch
  • Patent number: 4616368
    Abstract: A sanitary cleaning apparatus is disclosed, which comprises a cleaning water discharge device, a functional device including another cleaning water discharge device or a private parts dryer, a member for turning on and off the cleaning water discharge device, and a human body (presence or absence) detector. Only while the human body detector produces a human body detection signal, the on-off member for the cleaning water discharge device or the functional device is turned on, thereby selectively actuating a corresponding device. One of the devices thus turned on as selected above is de-energized by (a) the turning off of the on-off member of the selected device, (b) the turning on of the on-off member of the other device not selected, or (c) extinction of the human body detection signal of the human body detector.
    Type: Grant
    Filed: June 25, 1985
    Date of Patent: October 14, 1986
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Kazutoshi Nagai, Hirofumi Aoyagi
  • Patent number: 4561131
    Abstract: A water saving apparatus for water conservation which is achieved by minimizing the amount of water required to flush a toilet effectively. A specially configured toilet bowl is combined with a small toilet tank which houses two independent flushing systems. They can be operated singularly, simultaneously or in sequence selectively, depending upon the degree and type of flushing deemed most appropriate by an operator for the occasion. The functions of expelling waste matter present in the toilet bowl and of washing the internal surface of the toilet bowl are separated and each function is performed by the flushing system deemed most effective to accomplish the task, and each task is completed with a minimum amount of water being required for this specific task. The operator alone selects which flushing mode is to be used and retains control of the proper flushing sequence. The operator then is the sole judge as to the extent of water saving that is justified.
    Type: Grant
    Filed: November 8, 1984
    Date of Patent: December 31, 1985
    Inventor: Constant V. David
  • Patent number: 4310934
    Abstract: A water-conserving toilet is disclosed and includes a bowl for receiving waste and a waste outlet extending laterally from the bowl and defining a first, shallow trap arranged so that a relatively shallow body of liquid is normally retained in the bottom of the bowl for preventing gaseous flow through the trap. A flush system is provided and is arranged, when operated, to deliver a charge of flushing liquid into the bowl in a direction to cause said body of liquid to be discharged through said outlet. A waste holding tank communicates with said bowl outlet for receiving waste from the bowl and the holding tank has an outlet extending outwardly from the tank and adapted for connection to a sewer inlet. The holding tank outlet defines a second trap of substantial height capable of preventing reverse flow of sewer gas into the holding tank in use and the holding tank and second trap are arranged to contain a volume of liquid substantially in excess of the volume discharged from the bowl at each flush.
    Type: Grant
    Filed: November 1, 1979
    Date of Patent: January 19, 1982
    Inventors: Arnold Hennessy, John D. Inch
  • Patent number: 4145776
    Abstract: Disclosed are an integral plastic bowl, waterway and trap for a toilet and the method of making the product. The bowl is concave and leads into a trap which may be interconnected with a standard closet flange. The waterway is vertically aligned with the trap and slopes downwardly from an inlet to an outlet, which is preferably at a position near the bottom interior of the bowl and which also preferably includes a wall surface in overlying alignment with at least a portion of the downwardly sloping waterway portion. During flushing, water from a reservoir flows down the waterway, against the outlet wall surface causing a vortex in the bowl, and then out of the bowl into the trap. In the method of making the product, a plastic parison is positioned between the sections of a blow mold. Next, the mold sections are closed, pinching portions of the parison shut to partially form the trap and waterway and enclosing another parison portion in a bulbous mold cavity.
    Type: Grant
    Filed: January 24, 1977
    Date of Patent: March 27, 1979
    Assignee: Trayco, Inc.
    Inventors: Samuel C. Crosby, Thomas M. Whitney, William F. Price
  • Patent number: 4145772
    Abstract: An essentially all-plastic toilet includes a plastic bowl, trap, waterway, tank and rim flush retained within an outer plastic housing. Polyurethane foam fills the space between the outer housing and the internal components to provide a rigid and strong, yet light weight structure.
    Type: Grant
    Filed: July 11, 1977
    Date of Patent: March 27, 1979
    Assignee: Trayco, Inc.
    Inventors: Thomas M. Whitney, Samuel C. Crosby
  • Patent number: 4106131
    Abstract: A water distributor adapted for use in a siphon closet of the type provided with an open flush rim. The distributor includes a strip of material adapted to be inserted and positioned in a siphon closet to at least partially close the open flush rim therein. An arrangement of apertures are in the distributor to form passageways from the at least partially closed flush rim. The distributor is inexpensive to manufacture and can be simply and efficiently installed. It is formed of a material of limited flexibility so that it need only be flexed, pressed into the open flush rim of the siphon closet from below and released. The distributor is formed of a single inexpensive element and no additional fasteners are required for installation. The distributor is not visible when installed and is relatively permanent and can only be removed by an expert with special tools.
    Type: Grant
    Filed: April 11, 1977
    Date of Patent: August 15, 1978
    Assignee: American Standard Inc.
    Inventor: Wilfried Delker
  • Patent number: 4086668
    Abstract: A water closet made up of a toilet bowl having flush nozzles around its rim and a flexible tube supported in the outlet pipe hanging down therein with a loose lower end for assisting in the flushing of the water closet. A separate behind valve supplies water to the rim and to the outlet.
    Type: Grant
    Filed: April 12, 1976
    Date of Patent: May 2, 1978
    Inventor: Elton H. Tubbs