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 |
| 7669283 | Method and apparatus for deep cleaning rug or carpet A rug or carpet cleaner includes a housing, a suction generator carried on the housing and agitator carried on the housing. The agitator includes a hollow body, a cleaning projection carried on the hollow body, an air intake aperture provided in the cleaning project... | 03/02/2010 |
| 7634836 | Intake nozzle and vacuum cleaner having the same An intake nozzle and vacuum cleaner having the same are disclosed, by which an air intake force can be adjusted. The present invention includes a nozzle case, a first air intake port provided to a bottom of the nozzle case to suck an air including dust by an air int... | 12/22/2009 |
| 7412750 | Floorcloth attached suction brush for vacuum cleaner A suction brush that includes a body in communication with a dust collection apparatus of a vacuum cleaner and having a main suction port formed through a bottom of the body, and a cover for covering the top of the body, the cover having auxiliary suction ports. A p... | 08/19/2008 |
| 7334291 | Suction brush assembly and a vacuum cleaner having the same A suction brush assembly comprises an assembly body having a suction inlet for drawing in dust on a surface being cleaned, a cover connected to the assembly body and having an opening for drawing in an external air, and a rotation body rotatably mounted to the assem... | 02/26/2008 |
| 7257859 | Cleaner having brush A cleaner having a brush includes a suction motor mounted in a main body, and generating a suction force; a filter for collecting dust or filth sucked by the suction force generated at the suction motor; a suction head connected with the filter by a suction pipe, an... | 08/21/2007 |
| 7234197 | Unattended spot cleaning apparatus A spot cleaning apparatus comprises a fluid distribution system, a fluid recovery system, an agitation system, and a controller system to automatically monitor and control inputs and outputs to said systems for removal of spots and stains from a surface without atte... | 06/26/2007 |
| 7192485 | Application device A device (510) for the direct or indirect application of liquid or pasty application medium (516) by means of an applicator unit (512) to a material web (520), in particular of paper or board, comprises a device (570) upstream of t... | 03/20/2007 |
| 7159275 | Glass surface cleaning machine A glass surface cleaning machine includes a supporting frame which has a fluid receiving chamber provided therein and includes a supporting arm frontwardly extended therefrom, a wiper blade transversely mounted on a front edge of the supporting arm of the supporting... | 01/09/2007 |
| 7146682 | Powered edge cleaner A floor care appliance such as a vacuum cleaner is provided having a traction wheel powered edge cleaner comprised of a vertical axis rotary agitator which is affixed to either the right or left side of the suction nozzle. The agitator is rotated by the traction whe... | 12/12/2006 |
| 7051402 | Gutter sweeper system A vehicle has a container that receives swept debris. A primary sweeper assembly has a primary axle with wound cables in a helical configuration. A primary shroud supports the primary sweeper assembly and the axle adjacent to its ends. Disk-shaped turbines are mount... | 05/30/2006 |
| 7007336 | Agitator construction An agitator includes a high strength, continuous metal axle, a pulley held on one end of the metal axle and a sleeve of lightweight plastic material received over the axle. The agitator is manufactured by molding a pulley body onto an underlying metal support or D-n... | 03/07/2006 |
| 6964082 | Waste recycle vacuum cleaner for generating power Accordingly, the primary object of the present invention is to provide a waste recycle vacuum cleaner for generating power which comprises a flow guide seat, a flow guide tube, at least one blade set and at least one driving device. By above components, exhausted wa... | 11/15/2005 |
| 6959467 | Bladed disk brush roller assembly for a vacuum cleaner A brush roller assembly for a vacuum cleaner includes a rotatable spindle having a longitudinal axis, a first end, a second end and a central portion. A first airflow enhancing device (“AED”) is positioned, by being molded onto or operationally attached to, the ... | 11/01/2005 |
| 6079079 | Vacuum cleaner including ventilation fan for forming air current flowing along the axial direction of rotary brush to suction member A vacuum cleaner with high efficiency in sucking dust includes a main body and a floor nozzle pivotally coupled to the main body. The body includes a body cover, and within the body, a fan motor and a dust-collecting bag mounting portion. The floor nozzle... | 06/27/2000 |
| 6058561 | Vacuum cleaner suction apparatus The present invention relates to a vacuum cleaner suction apparatus comprising an upper cover connected to a lower cover which has a void for installation of a rotary brush with a plurality of rotary vanes along a rotary shaft, first and second diaphragms... | 05/09/2000 |
| 6032327 | Electric vacuum cleaner A rotating brush including a hollow cylindrical rotor having through holes in its peripheral wall and bristles on its peripheral surface is provided in a nozzle of an upright electric vacuum cleaner. A reflux passage connecting a fan chamber in the cleane... | 03/07/2000 |
| 6018845 | Vacuum cleaner and suction member thereof In order to adjust a degree of tight contact between a floor surface and a suction member of a vacuum cleaner, and to facilitate operation of the vacuum cleaner, an air flow adjusting valve is provided at a left end of an upper plate of the suction member... | 02/01/2000 |
| 6018844 | Composite side skirt for powered sweeper A sweeping machine has a wheel supported body and a rotatable brush mounted transversely of the direction of machine movement. There is a debris hopper adjacent the brush and a dust collection chamber on the body. A vacuum fan draws dust laden air from th... | 02/01/2000 |
| 5898970 | Grout and hard surface cleaning apparatus A grout- and hard-surface cleaner has a water-blast nozzle (5) positioned on a cleaning enclosure (1) to direct a high-pressure and low-volume jet stream of water (36, 37) and optional cleaning material at an attitude onto a surface (4) being cleaned. Res... | 05/04/1999 |
| 5893195 | Safety device for a brush of a vacuum cleaner Disclosed is a safety device for a power brush of a vacuum cleaner which has a simple structure and can automatically cut off an electric source supplied to the driving motor of the power brush. A cylindrical air duct is vertically provided on the brush. ... | 04/13/1999 |
| 5752289 | System and method for cleaning carpet and the like A system for cleaning carpets and other textiles utilizing an applicator wand with which a cleaning liquid is spray-applied to the carpet and with which the cleaning liquid and loosened debris are removed from the carpet under the influence of a vacuum cr... | 05/19/1998 |
| 5704090 | Bleed for a vacuum cleaner A vacuum cleaner attachment for use in a suction line comprises a bleed section having an aperture extending into an interior portion of the attachment and a collar disposed in the bleed section. The collar is positionable in only a finite number of stabl... | 01/06/1998 |
| 5659921 | Sweeper with double side skirts for dust control A sweeping machine has a body, wheels supporting the body for movement over a surface to be swept and a rotatable brush mounted to the body transversely of the direction of movement of the sweeping machine. There is a debris hopper adjacent the rotatable ... | 08/26/1997 |
| 5557822 | Electric vacuum cleaner An electric vacuum cleaner having a suction nozzle comprising a dust inlet formed in a bottom surface of a nozzle body and a rotary brush rotatably mounted therein along said dust inlet, wherein said electric vacuum cleaner having either or both of config... | 09/24/1996 |
| 5263224 | Wet vacuum attachment for vacuum cleaners A portable vacuum cleaner attachment, that can be attached to the end of a vacuum hose to remove and separate fluid, so that the fluid does not enter the vacuum unit. The attachment has a housing with an outlet that can be coupled to the vacuum hose, and ... | 11/23/1993 |
| 5249331 | Vacuum cleaner floor nozzle having an auxiliary agitator A floor nozzle for a vacuum cleaner of the present invention has an auxiliary agitator provided outside the lateral wall of a main body of the nozzle. The auxiliary agitator is covered by a protecting cover, so as to ensure safety during use. Moreover, a ... | 10/05/1993 |
| 5050266 | Vacuum cleaner adapter for micro tools A vacuum cleaner adaptor for micro tools consisting of an adaptor body of tubular form having a large diameter section for fitting to a conventional vacuum cleaner vacuum intake port or positive air pressure discharge port, an integral conical transition ... | 09/24/1991 |
| 4854006 | Floor nozzle for vacuum cleaner A floor nozzle for vacuum cleaner in addition to a main rotating brush has auxiliary rotating brushes positioned aperatures in the side faces of the nozzle which extend to the bottom thereof, thereby to brush and suck dusts of edges on a carpet adjacent a... | 08/08/1989 |
| 4837888 | Suction nozzle for a vacuum cleaning device Suction nozzle for use in connection with a vacuum cleaning device for cleaning simultaneously the vertical surface (3) of a plinth (5), which is provided with a textile covering, and the immediately adjacent floor surface (2) likewise provided with a tex... | 06/13/1989 |
| 4594749 | Vacuum cleaner with air jet assist A vacuum cleaner head with a hood which closely fits the floor has a rotor with a plurality of nozzles supported on a hub with a slot. Outside air is drawn through the hub and nozzles into the hood to provide air jets from the nozzles which assist in disl... | 06/17/1986 |
| 4430768 | Agitator structure for suction cleaners Agitator restrictor structure in combination with a revolving or a reciprocating type sweep drive is located close to the nozzle mouth in a suction cleaner by providing a cavity in the agitator structure for recessing the major portion of the cleaning bru... | 02/14/1984 |
| 4222146 | Vacuum cleaners A vacuum cleaner with improved carpet-wall edge cleaning ability achieved by bringing a free brush roll cleaning end and its bristle tufts and beater bars into optimum proximity with the edge to be cleaned. Aligned bearing structures within which the brus... | 09/16/1980 |
| 4041569 | Separator system A separator system for use in removing liquid from a surface, which surface may be liquid or solid. The system consists of a pickup head, a separator, and an exhaust source which draws air through the pickup head and separator. The pickup head causes liqu... | 08/16/1977 |
| 4014065 | Magnetic developer removal system Vacuum removal means for removing excessive developer material from a member having a latent magnetic image developed with magnetic developer material. The vacuum removal means comprises a chamber having entrance and exit ports of predetermined cross-sect... | 03/29/1977 |
