"The wireless music box has no imaginable commercial value. Who would pay for a message sent to nobody in particular?"
David Sarnoff, American radio pioneer ; 1921
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 5614090 | Filter casing and pipe extension therefor A pipe extension for a filtering pot of a return filter has an outlet connection projecting from the filtering pot at its free end and a pipe secured to the outlet connection. An annular groove extending in circumferential direction is arranged at the out... | 03/25/1997 |
| 5474678 | In-line filter in a starting fluid injection system A starting fluid injection system includes an in-line filter having a body and a filter element. The body defines a passageway extending between the ends of the body and a set of threads formed around the passageway intermediate the ends. The filter eleme... | 12/12/1995 |
| 5445735 | Combination filter block and effluent flow deflector There is disclosed a device for both holding a filter element and deflecting and draining filter effluent, which may be adapted to utilize one or more disposable filter cartridges. The device can be used in systems for performing analytical tests which in... | 08/29/1995 |
| 5441637 | Suction head filter for a fuel tank A suction head for a fuel line of a fuel tank, especially for hand-held working tools such as motor chainsaws, has a cup-shaped housing made of plastic and comprising a mantle wall with cutouts and an end face with an opening. A filter mesh is covering th... | 08/15/1995 |
| 5431815 | Drainage and coupling adapter for a fluid conduit An adapter for a fluid conduit comprises a stepped diameter tubular member having an enlarged end portion with a plurality of piercable recesses formed thereon, a generally cup shaped obturator, and a removable sieve disposed therein. The recesses formed ... | 07/11/1995 |
| 5427679 | Septic system filter assembly, filter arrangement A filtering arrangement is provided for effluent from a septic tank prior to passage to a drain field or other disposal. The filtering arrangement makes use of an open-top, U-shaped filter into which the septic effluent is conducted from the top, preferab... | 06/27/1995 |
| 5390587 | Medicinal herb infusion dispenser Herbs contained within a filter assembly disposed within an outer enclosure assembly is infused by hot water from a faucet when a connector tube at the top of the enclosure assembly is attached to the faucet outlet and an outlet at the bottom of the enclo... | 02/21/1995 |
| 5376272 | Filter assembly including a filter and closure member A filter assembly or bottle filter for use in bottles or reservoirs of varying shapes and sizes is provided. The assembly has a cap or closure member sealingly connected to a filter body or support having a pair of fluid passageways. A pair of fluid passa... | 12/27/1994 |
| 5366620 | Inlet filter An improved liquid filtering assembly used in applications such as filtering solvents for use in a liquid chromatography system. The filter assembly uses a filter cup having a large surface area which can be quickly removed and changed. The filter assembl... | 11/22/1994 |
| 5330640 | Portable water filter having an inlet conduit with a weight and float construction A water filter including an inlet assembly which comprises a prefiltering foam tip. The inlet hose includes an adjustable float and a weight on the end of the hose which allows a given length at the end of the inlet hose to extend below the surface of the... | 07/19/1994 |
| 5312545 | Fuel filtering device A fuel filtering device is provided for insertion within a fuel inlet aperture of a motor vehicle fuel tank. The device includes a thin metal tube having a filtering mesh covering the inserted end of the tube. A fume reducing barrier is supported across t... | 05/17/1994 |
| 5302283 | Leaf guard and strainer assembly for a gutter downspout A leaf guard and strainer assembly for use in the downspout of a roof gutter is disclosed which tends to prevent the downspout from being clogged with leaves and debris while permitting water in the gutter to flow around the sides of the assembly and arou... | 04/12/1994 |
| 5297299 | Drain hair net A plastic device using nylon thread mesh material as a trapping element to prevent clogging of traps and drain lines caused by loose hair or other objects dropped in or washed down the drain opening. The device includes an annular flange having a dependin... | 03/29/1994 |
| 5281331 | Radiator fluid filter A filtering apparatus for filtering contaminants from a cooling system for an internal combustion engine with a liquid cooled radiator comprising a filtering screen to remove unwanted contaminants from the radiator fluid without substantially restricting ... | 01/25/1994 |
| 5139673 | Strainer assembly for removing solid particulates from oil A strainer assembly for removing solid particulates from a fluid has a housing shaped as an elbow-shaped conduit and a support member for supporting a screen adjacent a forwardly extending flange on an inlet conduit section of the housing, the housing als... | 08/18/1992 |
| 5130022 | Drainage element for presses To fasten filter covering (4) of a drainage element (2) for a fruit press, rod-shaped, flexible core (3) of drainage element (2) carries an elastic sleeve (11) on its end. Filter covering (4) is pulled over sleeve (11) and is held by an O-ring (13) in a a... | 07/14/1992 |
| 5078862 | Washer standpipe drain visual filter A washing machine lint trap attachable to the distal end of a washing machine drain hose. A transparent tube embodies a nylon trap secured to sized members to form a slip fit between the washing machine drain hose and the drain standpipe, the assembly fur... | 01/07/1992 |
| 4908130 | Automobile gasoline impurities removal apparatus A gasoline filter for the entranceway to a gas tank filler tube has three preferred embodiments. The first includes a semipermanently mounted cap having a bore in which there is disposed a removable cylindrical filter element. The element is seated on a r... | 03/13/1990 |
| 4806241 | Overflow lint strainer A filter assembly (10) for use in laundry tubs or similar fluid receptacles includes a tubular body portion (11) having a plurality of holes (12) arranged in a plurality of bands (14, 16, 18). All of the holes (12) within one of the bands (14, 16, 18) hav... | 02/21/1989 |
| 4729400 | Liquid control assembly A liquid control assembly for controlling the flow of a liquid into a reservoir. A float means for shutting off the flow of liquid when the reservoir is full is provided. Also, a means for independently shutting off the flow of liquid is provided so that ... | 03/08/1988 |
| 4678589 | Removable in-line self-cleaning strainer for piping systems An in-line, inclined strainer device in which the strainer proper is removably mounted within a casing, which casing is mounted in-line in a piping system, such that the strainer may be removed in an easy manner for subsequent replacement and/or cleaning.... | 07/07/1987 |
| 4524887 | Filter for adhesive applicator A heated filter arrangement is disclosed for apparatus for spraying or dispensing at predetermined intervals a predetermined amount of hot-melt adhesive so as to maintain the viscosity of the adhesive as it passes through the filter. The arrangement provi... | 06/25/1985 |
| 4523992 | Filter assembly The present invention provides a filter assembly adapted to be connected the water discharge hose of a washing machine. The filter assembly comprises a body having a tubular inlet member and a tubular outlet member which are coaxial but axially spaced fro... | 06/18/1985 |
| 4505138 | Save-a-pump A trap for use in a top loading fabric washing machine for preventing articles of clothing from entering the drain pump. The trap is located within the entrance to the hose connection between the tub and the pump. The trap can be viewed and cleared from o... | 03/19/1985 |
| 4505814 | Adjustably extensible roof drain receptacle A roof drain receptacle for mounting on the roof deck of a roofing structure and including an upwardly opening drain body with an externally disposed apparatus for adjustably extending and supporting the drain body so that its open upper end is in the pro... | 03/19/1985 |
| 4481110 | Feeder filter bag for bypass feeders A bypass feeder of the type comprising a tank having a closeable rounded top opening, an inlet and outlet opening positioned on the side of the tank, includes a rectangular frame filter bag holder dimensioned to fit inside the tank, the frame having its b... | 11/06/1984 |
| 4470908 | Solids trap The invention comprises a trap for use in a fluid conduit in which foreign solid material may occasionally be carried by the fluid. The trap has a duct-like body, preferably of similar cross-sectional area to the conduit in which it will be installed. A f... | 09/11/1984 |
| 4456061 | Filters used in well fluid cleaning operations A cylindrical housing is adapted to receive and discharge fluid in a subterranean well. In a preferred form, a plate is positioned in the cylinder separating it into first and second chambers. Filter adapter receiving means are disposed across the plate, ... | 06/26/1984 |
| 4421170 | Method and apparatus for quick replacement of cartridge filters used in well fluid cleaning operations A cylindrical housing is adapted to receive and discharge fluid in a subterranean well. In a preferred form, a plate is positioned in the cylinder separating it into first and second chambers. Filter adapter receiving means are disposed across the plate, ... | 12/20/1983 |
| 4295525 | Method and apparatus for quick replacement of cartridge filters used in well fluid cleaning operations A cylindrical housing is adapted to receive and discharge fluid in a subterranean well. In a preferred form, a plate is positioned in the cylinder separating it into first and second chambers. Filter adapter receiving means are disposed across the plate, ... | 10/20/1981 |
| 4257894 | Filter core extender and seal A core extender and seal are provided which may be used in combination with cartridge filters. The core extender includes a body having first and second ends which are connected by longitudinal communication means through the core extender body. A radiall... | 03/24/1981 |
| 4123361 | Lint filter assembly A filter assembly for removing lint from water discharged through a hose from a washing machine comprised of an elongate tubular housing, an elongate tubular filter element located within the housing, and a filter removal element with a section underlying... | 10/31/1978 |
| 4118323 | Strainer Disclosed is a strainer which is suitable for use in supplying gasoline from a gasoline tank by means of a suction pipe. A strainer according to this invention comprises a cylindrical body having a net applied to the periphery thereof and a cover which is... | 10/03/1978 |
| 4107043 | Inlet conduit fluid filter A one-piece molded fluid filter for a fluid dispenser dip tube includes two circular plate portions, at least one having radially extending ribs which define a plurality of fluid passages between the plates. A tubular portion, extending coaxially from the... | 08/15/1978 |
| 4052315 | One-piece molded filter The embodiment of the invention disclosed herein is directed to a one-piece molded fluid filter and a mold construction for making the same. The mold construction is provided with first and second body portions having abutting surfaces forming a parting l... | 10/04/1977 |
| 4028248 | Fluid filter The specification and drawings disclose a fluid filter device which includes a central body section clamped between a pair of end fittings by a plurality of longitudinally extending tie bolts. The tie bolt arrangement is such that only one bolt must be re... | 06/07/1977 |
| 4003835 | Fittings Fittings are provided for use as replacements in a carburetor that has stripped the threads in the casting. The fittings include a self-adjusting filter screen, a cone nut, a fitting body, and a seal member. In a modified form of the invention, there is p... | 01/18/1977 |
| 3994812 | Double bottom tank structure with sleeved strainer means A tank containing a bed of particulate material, e.g. a sand filter bed or an ion exchange bed, has a bed-supporting bottom structure formed by upper and lower bottom plates rigidly connected with each other through a plurality of vertical sleeves opening... | 11/30/1976 |
| 3941697 | Automotive cooling system filter assembly A filter assembly capable of being removably disposed in a resilient hose adjacent a cooling liquid inlet to an automotive radiator for removing foreign particle material entrained with the cooling liquid as the latter circulates, and by such removal perm... | 03/02/1976 |