Did You Know...
...that Charles Goodyear performed some of his experiments on rubber while in debtor's prison? He was there so often he referred to it as his "hotel". Chronically in debt because of poor business sense and ill health, Goodyear depended on the generosity of friends and family. Even after he unlocked the secret to vulcanizing rubber, he was unable to improve his financial situation. When he died, his estate was $200,000 in debt.
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| Number | Title | Issue Date |
| 7704290 | Cyclone dust collecting apparatus for vacuum cleaner A cyclone dust collecting apparatus for a vacuum cleaner according to the present disclosure includes a cover having a suction port forcing entering air to form a whirling air current; a cyclone body connected to the cover, the cyclone body having a discharging pipe... | 04/27/2010 |
| 7550021 | Portable cyclonic dust collection system A portable dust collection system for a wood shop or other dust producing environment is employed with a sander, power saw, router or other dust-producing tool such as a woodworking tool. A movable platform has a vertical intake pipe supporting a head portion formed... | 06/23/2009 |
| 7431640 | Self-brushing air moving device An air moving device assembly in a computer system has an air moving device such as a fan or blower within a housing for moving air from an air inlet to an air outlet. A mesh with a plurality of openings covers the air outlet. A back flow damper assembly is position... | 10/07/2008 |
| 7347933 | Self-cleaning intake screen A self-cleaning screen that automatically cleans both the inside and outside surfaces of the cylindrical screen using only the rotation of the cylindrical screen itself. This self-cleaning ability is accomplished by using a fixed brush on the exterior surface of the... | 03/25/2008 |
| 7186281 | Dust-removing device for the dust-collecting tank of a dust-collecting machine A dust-removing device for the dust-collecting tank of a dust-collecting machine includes a guide frame installed inside the dust collecting tank and having a central guide rod for a brush base to move up and down thereon. The brush base has its outer circumferentia... | 03/06/2007 |
| 7152277 | Filter assembly for cyclone type dust collecting apparatus of a vacuum cleaner A vacuum cleaner, centrifugally separates contaminates from air and collects them in a filter assembly that includes a rotary filter connected to an exhaust port. The filter is provided with a suction grill portion at the outer circumference and a discharge port tha... | 12/26/2006 |
| 7152276 | Filter assembly for a cyclone-type dust collecting apparatus of vacuum cleaner A filter assembly for a cyclone-type dust collecting apparatus of a vacuum cleaner which filters dust included in the air current discharged from the outlet port of the cyclone-type dust collecting apparatus. The present filter assembly comprises a rotating filter r... | 12/26/2006 |
| 7086536 | Fluid filtering device with scraping element A fluid filtering device includes a housing, a driving device, a filter and a scraping device. The housing has a top portion, a wall portion downwardly extending from the periphery of the top portion and an inlet disposed in the top portion to allow the entry of flu... | 08/08/2006 |
| 6974487 | Cooling air cleaning device for a harvesting machine A device for cleaning a perforated radiator cage with at least one end face and peripheral side on an agricultural harvesting machine, wherein the device consists of an external brush which is associated with the radiator cage and which is in turn surrounded by a un... | 12/13/2005 |
| 6928692 | Cyclone-type dust collecting apparatus for vacuum cleaner A cyclone-type dust collecting apparatus having a dust removing portion for removing from the grill portion the dust and foreign substances that become attached to the grill portion of the grill member while the grill portion is rotated by the vortex air of the cycl... | 08/16/2005 |
| 6824580 | Cyclone dust collecting apparatus for a vacuum cleaner A cyclone dust collecting apparatus having a cyclone body for forming a vortex flow of contaminant-laden air that is drawn in through the air inflow port. The cyclone body includes a first connection pipe connected to an extension pipe adjacent to a suction port of ... | 11/30/2004 |
| 6775876 | Chamber cleaning mechanism An apparatus for cleaning a reaction chamber which has a chamber, a blade apparatus and a reciprocable rotating unit. The chamber has a wall with an interior surface. The blade apparatus has at least one annular mounting member and at least three scraping blades att... | 08/17/2004 |
| 6729154 | Air conditioner An air conditioner having a dust removing device which enables dust having stuck to its filters to be automatically removed without fail and prevents the removed dust from sticking again to the filters is to be provided. It is equipped with a sliding device 6 | 05/04/2004 |
| 6638329 | Filter having a folded dust filter element and a cleaning device for the folded dust filter element A filter for filtering dust-containing air including a filter insert (2) and a cleaning device (3) having a contact element (6) mechanically contacting the filter insert along an end edge (4a/4b) of a folded dust filter element (5) forming part of the fil... | 10/28/2003 |
| 6625845 | Cyclonic vacuum cleaner In an electric vacuum cleaner, in a suction air passage provided between a nozzle unit having a nozzle and an electric blower for producing a suction air flow, a separator for separating dust from the suction air flow is arranged. In the separator, a dust... | 09/30/2003 |
| 6432152 | Cleaning arrangement of a sieve An arrangement for cooling the engine of a harvesting vehicle includes a circular sieve or screen mounted for rotation about a fore-and-aft axis and through which air is drawn by a fan which discharges the air through a cooling device. A cleaner in the fo... | 08/13/2002 |
| 6248145 | Cleaner for rotating air-intake filter An agricultural machine has a cooling fan with an intake covered by a filter centered on and rotating about an axis. A cleaning apparatus for the filter has a hood nonrotatable about the axis and engaged over only a small portion of an outer face of the f... | 06/19/2001 |
| 6182325 | Chamber cleaning mechanism An apparatus for cleaning a chamber is disclosed. Scraping blades are rotatably mounted within a chamber and parallel to a longitudinal axis of the chamber. The scraping blades are rotated circumferentially within the chamber, scraping the inner surface o... | 02/06/2001 |
| 6171353 | Apparatus for treating waste gases Disclosed is an apparatus for effectively treating waste gases which are discharged during a processing of manufacturing semiconductors. The apparatus for treating waste gases according to an embodiment of the present invention comprises a waste gases hea... | 01/09/2001 |
| 6119299 | Apparatus for cleaning a conduit An apparatus and a method for cleaning a conduit that has unwanted chemical substances deposited on an interior wall of the conduit are provided. The apparatus utilizes a rack-and-pinion drive mechanism for moving a set of cleaning blades in a rotational ... | 09/19/2000 |
| 6010576 | Apparatus and method for cleaning an exhaust gas reactor An apparatus and a method for cleaning a conduit that has unwanted chemical substances deposited on an interior wall of the conduit are provided. The apparatus utilizes a rack-and-pinion drive mechanism for moving a set of cleaning blades in a rotational ... | 01/04/2000 |
| 5922092 | Bottom feed - updraft gasification system A gasification system for solid wastes having a thermal reactor and a mechanical gas cleaner, an indirect heat exchange cooler, and an electrostatic precipitator for cleaning and cooling the produced gas. Feed material is continuously fed to the central s... | 07/13/1999 |
| 5915439 | Apparatus for cleaning cylindrical air filters An apparatus is disclosed for cleaning filters used in air breathing machinery. The apparatus is adapted to clean filters that are either contaminated or dirty on the inside surface of its filter medium or on the outside. For this purpose, the filter is p... | 06/29/1999 |
| 5664339 | Lint basket for a lint storage system A lint enclosure system for a laundry dryer including an elongated lint basket supported beneath a lid. The lint basket is formed from a filter wall having a first end wall and a second end wall disposed at opposite ends. The filter wall has a generally U... | 09/09/1997 |
| 5651188 | Lint storage system A bulk lint storage system supported by a top panel of a dryer. The storage system includes a elongated lint tray connected to the top panel and having an inlet port at one end for receiving lint laden air and an outlet port. A lid is hingedly connected t... | 07/29/1997 |
| 5271751 | Device for removing dust from a machine When work processing equipment and more particularly floor sanding machines have means for drawing off dust, they are also fitted with a device for aspiration of the dust laden air and the collection of the dust. The device in accordance with the inventio... | 12/21/1993 |
| 5217514 | Filtering device for tenter treatment gases A filtering device for a tenter for the gaseous treatment of fabrics includes a movable filtering belt which traverses the entire length and cross section of the tenter. Pressure nozzles on the clean side of the belt dislodge collected materials into wast... | 06/08/1993 |
| 4934449 | Air intake system for an agricultural implement An air intake system for an agricultural implement having a mobile frame, an internal combustion engine carried by the frame, a heat exchanger defining front and rear planar faces, an engine driven fan and a walled structure enclosing the engine, heat exc... | 06/19/1990 |
| 4874407 | Regenerable filter A regenerable filter for use with exhaust gas streams containing combustible particles, the filter including a filter medium upon which the particles build up as the filter medium removes the particles from the gas stream, a scraper to remove the particle... | 10/17/1989 |
| 4725365 | Bar screen raking apparatus and method of use A rake apparatus for use with a bar screen in a fluid channel that catches debris whereby the rake apparatus enters the channel with reciprocal movement to remove debris caught on the screen bars. The novel raking apparatus has the ability to encounter an... | 02/16/1988 |
| 4681604 | Multistage fluid filter and method A fluid filter (10) comprises a plurality of separate filtration chamber (14-18) with a fluid inlet (12) and a fluid outlet (13). All of the filtration chambers (14-18) are identical and each contain two vertically-spaced doors (28, 29) on one end and two... | 07/21/1987 |
| 4473384 | Separator A separator for separating particulate material from fluid having a feed conduit including a plurality of feed openings and a collector having open and closed areas. The feed openings are spaced from, parallel to and continuously substantially encompassed... | 09/25/1984 |
| 4428453 | Exhaust silences for internal combustion engines A silencer comprises a chamber with internal baffles mounted on a rod so that they can be manually reciprocated to scrape deposits off the chamber wall. A head at an end of the rod protruding from the chamber is screwable to a chamber end wall to hold the... | 01/31/1984 |
| 4291753 | Scraper assembly for use with a fluidized bed condenser A fluidized bed condenser for use in condensing zirconium tetrachloride or hafnium tetrachloride vapor into solid zirconium tetrachloride or hafnium tetrachloride includes a scraper assembly. The scraper assembly includes at least one scraper arm located ... | 09/29/1981 |
| 4193777 | Painting room with recovery arrangement Paint particles suspended in a gas are removed from the suspension by coating the surfaces of baffles with a material to which paint particles adhere and having a melting point below 100° C.; positioning said coated baffles in a sequence spaced apart fro... | 03/18/1980 |
| 4140503 | Vapor condenser and lint humidifier system A cotton condenser for receiving air borne lint cotton or similar material from an air stream and forming a bat therefrom on a screen drum for delivery to a packaging press, wherein the condenser housing forms a chamber outwardly surrounding the screen dr... | 02/20/1979 |
| 4057105 | Self-cleaning screen assembly for radiators and method A plurality of perforated endless belts are disposed in circumventing relationship about a radiator. At least one roller is disposed on either side of the radiator to engage and guide the belts with one of the rollers being motor-driven. A vertically disp... | 11/08/1977 |
| 3966418 | Gas treatment apparatus A gas treatment apparatus suitable for removing sulfur oxides and dust from gas streams is disclosed. The gas to be treated is conveyed through a conduit and past at least one nozzle positioned in fluid communicaton with the interior of the conduit. The n... | 06/29/1976 |
| 3942842 | Industrial vacuum loading apparatus A vacuum operated industrial loading apparatus employing an exhaust fan and an elongated flexible inlet hose for breaking up material to be loaded, and including a self-sealing separation chamber and apparatus for continuously removing material picked up ... | 03/09/1976 |
