"Everyone acquainted with the subject will recognize it as a conspicuous failure."
Henry Morton, president of the Stevens Institute of Technology ; Said in 1880 about the light bulb
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| Number | Title | Issue Date |
| 7340783 | Compressed air drain opening device An air plunger is described. The air plunger comprises an upper barrel and a lower barrel slidably received by the upper barrel. An air seal is fixed to the lower barrel and slidably engages with the upper barrel. A nozzle is attached to the lower barrel opposite to... | 03/11/2008 |
| 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 |
| 7121228 | Animal waste disposing assembly An animal waste disposing assembly includes a base that has a top side, a bottom side and a peripheral edge extending between the top and bottom sides. The base has a threaded opening extending therethrough. A cylindrically shaped post is attached to and extends awa... | 10/17/2006 |
| 7073211 | Hydraulic plumber's friend A hydraulic plumber's friend has a cylindrical body, a lid, a compression assembly, a tapered end cap and a nozzle assembly. The cylindrical body has an open bottom and holds water to be injected into a clogged pipe. The compression assembly has a drive shaft and a ... | 07/11/2006 |
| 7000284 | Drain vacuum attachment kit An apparatus is provided to aid in the removal of blockages from sanitary waste lines on sinks, showers and the like. Two pieces of flexible hose connect to a standard utility vacuum. The first piece of hose, approximately six to eight feet long, connects to the suc... | 02/21/2006 |
| 6035455 | Portable power plumbing plunger The portable power plunger is for unclogging blocked drains in sinks, toilets, bath tubs and the like. The plunger has a main body having a reciprocating pump with a removable attachment mounted at its outlet lower end which is adapted to cover intimately... | 03/14/2000 |
| 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 |
| 5669099 | System for use in clearing clogged drains The present invention relates to a system for using compressed air to dislodge a clog from a drain. The system includes a main housing defined by a handle component and a minor housing component. The handle component includes a rod and piston for use in d... | 09/23/1997 |
| 5403166 | Drain flushing device with top mounted funnel shaped liquid inlet cavity A drain flushing device for allowing a user to unclog a drain in either of two modes. The user is given the option to either use the device as a liquid column guide or as a pump.... | 04/04/1995 |
| 5239708 | Pneumatic waste line clean-out tool A mechanically operated pneumatic cleanout tool for clearing blockages in waste lines. The tool, which is readily adaptable for use in wash basins, bath tubs, toilets, bidets and the like embodies a novel safety pressure relief valve which prevents hazard... | 08/31/1993 |
| 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 |
| 4733414 | Spring loaded drain cleaning device A spring loaded drain cleaning device utilizing both positive and negative pressures to disrupt a clog. The invention is composed of a plastic hollow cylinder ending in an angled base cup having a gasket at its lower extremity, a cap at the top of the cyl... | 03/29/1988 |
| 4674137 | Manual device for cleaning clogged drains A manual device for cleaning clogged drains has a manual pump and an electric suction cup, which is mounted on the pump, and communicates with an outlet of the pump. A piston rod with a piston and controllable seals are arranged on the manual pump and tog... | 06/23/1987 |
| 4358861 | Drainpipe cleaner An implement for dislodging lumps of matter clogging a drainpipe comprises a long handle with a resilient cup attached to its lower end, the cup having several slits that extend from its rim down to form a plurality of petal-shaped leaves which yield inwa... | 11/16/1982 |
| 4053955 | Drain cleaning tool An hydraulic plunger for cleaning a clogged drain composed of a casing with a piston movable therein and being open at one end. A fitting is provided on the open end that fits against the drain inlet. A water inlet is provided in the casing to permit wate... | 10/18/1977 |