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"That the automobile has practically reached the limit of its development is suggested by the fact that during the past year no improvements of a radical nature have been introduced."
Scientific American ; Jan. 2 edition, 1909
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| Number | Title | Issue Date |
| 8015630 | Valve mechanism for controlling release of pressurized fluid A valve mechanism for controlling release of pressurized fluid includes a fluid chamber. A plunger is received in an aperture in the fluid chamber, and is movable between a fluid retention position in which fluid is substantially trapped in the fluid chamber and a f... | 09/13/2011 |
| 7350824 | Drain fitting A drain fitting has a unitary body with a lower section and an upper section upstanding from the lower section. The lower section encompasses a space and is open to the drain line to be cleaned. The upper section has a side wall and an inner wall which forms a chann... | 04/01/2008 |
| 7213273 | High pressure plunger A plunger includes a lever, a pipe, a rod passed through an axial hole of the pipe, a covering member, and a spring; the rod will be upwards displaced when the lever is pivoted upwards; the rod has a passage therein, and a head at an upper end for connection with an... | 05/08/2007 |
| 7185529 | Shower station testing assembly for pressure testing plumbing The present invention provides a testing assembly for pressure testing a plumbing system in a building where the building has a shower station with a drain and a shower inlet. The testing assembly includes a drain adapter, a hose fitting on the shower inlet, and a h... | 03/06/2007 |
| 7063095 | Drain washing apparatus The present invention relates to apparatus for washing drains. The apparatus includes a support and a nozzle, which are adapted and configured to convey fluid to and to wash a drain. Typically, the apparatus includes a wand as the support and a ball or head as the n... | 06/20/2006 |
| 6941589 | Method and apparatus for clearing plugged pipes A drain clearing device for use on unvented plumbing fixtures having a drain and a holding tank is provided having a valve body. The valve body has a first end and a second end with a fluid flow channel therethrough, and a valve connected to a handle actuated to ope... | 09/13/2005 |
| 6934975 | Drain cleaning device An adapter device, intended to be used with a conventional kitchen hose spray nozzle attached to a flexible hose, on most kitchen faucets can be used to clear drains. The adapter device can be mated or secured to the kitchen hose spray and will close the drain openi... | 08/30/2005 |
| 6907622 | Flushing device for toilets A flushing device for toilets includes a source for applying a fluid pressure to a blockage area and provides a seal in the blocked conduit to prevent backflow so that full pressure is applied to the blockage. The device includes a resilient, deformable and expandab... | 06/21/2005 |
| 6892401 | Compressed air tool A compressed air tool for unclogging drains includes an air chamber for storing compressed air. A one-way air inlet is fluidly coupled to the air chamber. An outlet valve selectively allows compressed air from the air chamber to enter a tube fluidly coupled to the a... | 05/17/2005 |
| 6594849 | Plumbing device The invention comprises a drain cleaning apparatus having a flexible forward tubular portion and a rigid real-ward tubular portion. The flexible portion is coupled to a drain pipe of a building connected to the sewer line, after the elbow connection betwe... | 07/22/2003 |
| 6434760 | Pressurized plunger apparatus A pressurized plunger apparatus for cleaning drains and other plumbing fixtures of obstacles. The pressurized plunger apparatus includes a pressurizable handle assembly that has an air valve for releasing the compressed air into a chamber area of a plunge... | 08/20/2002 |
| 6389613 | Pressure flush control system A pressure flush control system comprises a hose connected at one end to a water supply and an inflatable bag connected to the other end of the hose, so that water from the water supply flows through the hose and into the bag to inflate the bag after the ... | 05/21/2002 |
| 6357057 | Cleaning and hygienic device An improved cleaning device which can be used as a personal hygienic unit, as a unit for cleaning a diaper area of an infant, and rinsing soiled diapers, or as a cleaning unit for clearing clogs in a toilet or drain pipe. There is included a flexible hose... | 03/19/2002 |
| 6295659 | Apparatus for cleaning out drain pipe obstructions An assembly useful in directing a narrow water stream against an obstruction inside drain plumbing includes an exteriortubular housing within which a spray wand may be telescopically received. A resilient seal is engaged to the free end of the wand, for c... | 10/02/2001 |
| 6185755 | Apparatus for flushing drain pipes Apparatus for flushing a drain pipe with an accessible open end has a valve assembly with a hollow body connectable to a source of liquid under pressure for the supply of liquid under pressure to the interior of the hollow body, the hollow body having an ... | 02/13/2001 |
| 6163895 | Plunger apparatus A multi-purpose water pressure plunger is provided having an adjustable valve with a regulating lever that is attached to a handle. The handle is connected to an anti-backflow valve. The anti-backflow valve is removably connected to a plunger head that is... | 12/26/2000 |
| 6032301 | Plunger A plunger includes an upper base, a pressure ball under the upper base, a correlative tubular shaft extending vertically through the pressure ball, a handle pivotally connected with an upper end of the correlative tubular shaft, a connecting rod connects ... | 03/07/2000 |
| 5803101 | Portable drain cleaning apparatus A readily transportable, compact and self-contained drain cleaning apparatus includes a hand-held control housing that is provided with an internal passage into which a release member and an adjustable regulating unit extend at spaced intervals such that ... | 09/08/1998 |
| 5720055 | Cleaning and hygienic device A cleaning device which can be used as a personal hygienic unit, as a unit for cleaning a diaper area of an infant, and rinsing soiled diapers, or as a cleaning unit for clearing clogs in a toilet or drain pipe. There is included a flexible hose which is ... | 02/24/1998 |
| 5664284 | Apparatus for opening clogged and slow drains An apparatus for opening drains and the like includes a suitable vacuum/pressure source such as the inlet/outlet ports of an enclosed motor driven fan, together with a control mechanism for selectively applying vacuum/pressure pulses to a partially or com... | 09/09/1997 |
| 5530988 | Device for clearing pipes or other lines with pressurized gas A device for unclogging pipes or other lines. The device includes a canister adapted to receive a pressurized gas, the canister having at a first end a first valve adapted to be coupled to the pipe or line that is to be unclogged. The canister has at a se... | 07/02/1996 |
| 5524296 | Plunger device A plunger device for forcing waste through a drain line of a plumbing fixture comprising an elongate, tubular member. Fluidly connected to the top end of the tubular member is a valve assembly which is adapted to have a water supply source fluidly coupled... | 06/11/1996 |
| 5509148 | Three-way trap elbow and cleanout system A three-way elbow for connection between a trap and a waste line is provided with a valved access ending in a plug. Removal of the plug allows attachment of a first end of a hose in its place. The second end of the hose is held above the water level of a ... | 04/23/1996 |
| 5384918 | Plunger device A plunger device for forcing waste through a drain line of a plumbing fixture. The plunger device generally comprises an elongate tubular member having a top end and a bottom end. Fluidly connected to the top end is a handle member which is adapted to be ... | 01/31/1995 |
| 5261128 | Multi-purpose water pressure plunger A multi-purpose water pressure plunger employs a source of pressurized water to dislodge clogs in bathroom drainage pipes and the like. The plunger is fashioned of a resilient cone-shaped cup, a rigid handle, an adjustable valve, and a means of connection... | 11/16/1993 |
| 5249311 | Fluid pressure device for opening clogged pipes Fluid pressure discharge device includes a handle, a fluid conduit in the handle, and a slidable fluid conduit tube movable relative to the fluid conduit for discharging a pressurized fluid near a clog in a clogged pipe. A pressurized gas for being discha... | 10/05/1993 |
| 5193245 | Apparatus for opening drains The invention discloses a method and apparatus for opening drains and the like, and includes a suitable vacuum/pressure source such as a household or industrial wet/dry vacuum cleaner with a control mechanism fitted to the vacuum cleaner or an intermediat... | 03/16/1993 |
| 5188134 | Automatic inner pipeline surface washing apparatus Each of the washing units A and B comprises an openable and closable pinch valve unit 4 branchwise connected to a pipeline C, an autofeeder unit 5 for controlling the feed for advance and retraction movement of a high pressure hose 6 having rotatable nozz... | 02/23/1993 |
| 5127129 | Dental equipment cleaning apparatus and method An apparatus for cleaning clogged dental equipment lines, such as water and air lines and drains, for a wide variety of dental equipment such as cuspidors and handpieces. One embodiment has an air hose connected to a connector for a handpiece for a drill,... | 07/07/1992 |
| 5020166 | Multi-purpose water pressure plunger A multi-purpose water pressure plunger employs a source of pressurized water to dislodge clogs in bathroom drainage pipes and the like. The plunger is fashioned of a resilient cone-shaped cup, a rigid handle, an adjustable valve, and a means of connection... | 06/04/1991 |
| 4865062 | Valve assembly for a pipe flushing device An improvement in a pipe flushing device is provided. The device includes a hollow, elastomeric tubular member expandible by water pressure and having open opposite ends. A hose connector is connected to the inlet end thereof and a valve connected to a tr... | 09/12/1989 |
| 4847923 | Water and air whirlpooling double flush toilet clog remover The present invention relates to a water and air whirlpool double flush toilet clog remover having a hollow cylinder, a top cover with air ports attached to the cylinder, a fixed direction filling device having a piston within the cylinder and a hollow pl... | 07/18/1989 |
| 4825900 | Valve assembly for a pipe flushing device An improvement in a pipe flushing device is provided. The device includes a hollow, elastomeric tubular member expandible by water pressure and having open opposite ends. A hose connector is connected to the inlet end thereof and a valve connected to a tr... | 05/02/1989 |
| 4790356 | Drain pipe plug device The drain pipe plug device for drain testing includes an elongated elastomeric, flexible, resilient, hollow, generally cylindrical tube which has a central passageway running its length and in communication with a rear portion bearing an inlet and front p... | 12/13/1988 |
| 4768237 | Toilet plunger A toilet plunger comprises a resiliently deformable plunger element, a tubular handle element which is connectable to a supply of pressurized water, a shutoff valve on the handle element, and a check valve element for preventing the inadvertent backflow o... | 09/06/1988 |
| 4760614 | Drainage pipe stoppage displacer A device for displacing or washing out blockages in pipe systems. The device has a central tube which can be closed with a gate valve which thereby isolates the pipe above and below the device. Fluid under pressure is introduced through a three way valve ... | 08/02/1988 |
| 4756480 | Apparatus for flushing drains A drain unclogging and clearing apparatus providing an elongated rigid tube having a constricting nozzle at one end capable of increasing the velocity of water flowing through the tube and ejecting such water in a jet, the nozzle being surrounded by a fla... | 07/12/1988 |
| 4555820 | Drain pipe system A system for clearing clogged drain pipes comprising a drain pipe section either straight or P-trap, having a closeable side inlet adjacent the upstream end of the pipe, means to connect the side inlet to a source of pressurized water, an anti-backflow de... | 12/03/1985 |
| 4320539 | Drain clearing device A drain clearing device which effectively employs water pressure to clear a blocked drain where the drain opening is submerged or relatively inaccessible. The drain clearing device comprises a drain sealing member of resiliently compressible material atta... | 03/23/1982 |
| 4187563 | Flushing device A device for flushing a drain pipe of a sink by applying water under pressure to the interior of the pipe. A conduit for passing water therethrough under pressure is connected to a seal which fits over the mouth of the pipe and provides a water tight seal... | 02/12/1980 |
