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 |
| 8082624 | Rotatable coupling for steering vacuum cleaner A steerable vacuum cleaner and a method to steer the vacuum is described. The vacuum cleaner include: a base; a handle having a longitudinal axis and including a conduit; and a rotatable coupling pivotally attached between the base and the handle, with the coupling ... | 12/27/2011 |
| 7356876 | Swivel assembly for connecting a wand to a nozzle assembly of a vacuum cleaner In one aspect, a swivel assembly connects a wand to a nozzle assembly of a vacuum cleaner. The assembly includes a connector for pivotally connecting to the nozzle assembly and having an oversized opening formed in an outer sidewall thereof. A receiver is provided f... | 04/15/2008 |
| 7353564 | Vacuum sweeper An attachment for portable power and suction units, including a long control tube having a length to extend from a floor to adjacent shoulder height of a standing user and a vacuum head formed from a length of tube having a slot in one side and with the ends of the ... | 04/08/2008 |
| 7048804 | Suction wet jet mop A cleaning device (10) includes a handle assembly (14). A cleaning head (12, 312, 512) is pivotally mounted to the handle assembly (14). The cleaning head selectively holds a cleaning pad (70) for collecting dust and debris from a ... | 05/23/2006 |
| 6904640 | Joint assembly of vacuum cleaner and vacuum cleaner having the same A vacuum cleaner having a joint assembly to selectively rotate an extension pipe with respect to a handle. The joint assembly has a joint body removably installed between the extension pipe and the handle to allow the extension pipe 130 to rotate with respect... | 06/14/2005 |
| 6532622 | Brush head of vacuum cleaner A brush head of a vacuum cleaner can pivot in a horizontal direction as well as a vertical direction with respect to a suction pipe, so as to easily clean an area narrower than the width of the brush head. The brush head of a vacuum cleaner includes a bod... | 03/18/2003 |
| 6519810 | Vacuum cleaner nozzle A vacuum cleaner, performing a cleaning operation using a nozzle casing coupled to a suction pipe or using the suction pipe free from the nozzle casing, is disclosed. This vacuum cleaner does not force a user to change an existing cleaning tool with anoth... | 02/18/2003 |
| 6473934 | Suction attachment comprising a rotatable foot and a displaceable brush A suction attachment for a vacuum cleaner. The suction attachment comprises a foot, a suction opening extending in an imaginary plane, and a connection member for connecting the foot to a suction channel of the vacuum cleaner. The foot is provided with a ... | 11/05/2002 |
| 6345408 | Electric vacuum cleaner and nozzle unit therefor A nozzle unit for an electric vacuum cleaner has a body case 32 with a nozzle 34a open toward a surface to be cleaned, a first pipe 35 coupled to the body case 32 so as to be rotatable in the direction J1, and a second pipe 36 coupled to the first pipe 35... | 02/12/2002 |
| 6209925 | Turn shaft for a vacuum cleaner A tube shaft for a vacuum cleaner the shaft (10) having an upper tube part (15) and a lower tube part turnably connected to one another and each including at least two tube sections (15c,15e,16b,16c). The tube sections of each tube part are inclined with ... | 04/03/2001 |
| 6125502 | Suction pipe for a suction cleaner A suction pipe for a suction cleaner comprising an elongated pipe having at its lower end, in the in-use position, a coupling stud for a suction mouthpiece, and opposite this end, a flexible suction hose facing to one side relative to the elongated pipe, ... | 10/03/2000 |
| 6065183 | Connection element for a mouthpiece A connecting element for coupling of the suction pipe (3) of a suction cleaner to a mouthpiece (2) having a suction sole (9) with an abutment surface (10) and an elongated suction slot which debouches on the abutment surface (10) of the suction sole (9), ... | 05/23/2000 |
| 6055703 | Upright vacuum cleaner having improved steering apparatus with a lock out feature An upright steerable vacuum cleaner comprised of a handle, body, nozzle base and air duct therein further having a swivel joint at the junction of the nozzle base and body. The swivel joint or steering mechanism comprises a trunnion pivotably connected to... | 05/02/2000 |
| 6006401 | Vacuum cleaner having a handle release thereon An upright vacuum cleaner is provided which has a handle pivotally mounted to a foot. The foot has a releasable mechanism pivotally mounted thereto. The releasable mechanism and the handle are provided with abutting protrusions and recesses which can abut... | 12/28/1999 |
| 5794305 | Articulation device for a vacuum cleaner A vacuum cleaner having an articulation mechanism which includes hemispherically shaped rearward wheels and spaced forward wheels, and a base member which pivotably couples the front and rear wheels so that the rearward wheels may be pivoted in a plane su... | 08/18/1998 |
| 5584095 | Vacuum cleaner having improved steering features An upright steerable vacuum cleaner is provided, which includes the use of a pivotable cylindrical motor housing, as well as a universal joint which is attached to the motor housing, such that twisting at the upper body of the vacuum cleaner clockwise cau... | 12/17/1996 |
| 5323510 | Vacuum cleaner having improved steering features An upright steerable vacuum cleaner is provided, which includes the use of a pivotable cylindrical motor housing, as well as a universal joint which is attached to the motor housing, such that twisting at the upper body of the vacuum cleaner clockwise cau... | 06/28/1994 |
| 5242588 | Filter unit assembly Filter unit assembly located at an operator-designated position is provided for enabling fluid flow through a removable mesh filter and ready disconnectibility from a vacuum line with the avoidance of liquid spillage from the filter unit assembly. The fil... | 09/07/1993 |
| 5060342 | Cleaning head A cleaning head adapted for use on hard surfaces comprises a body (10) formed as two back-to-back housings (20) and (30) which are swivellably mounted on a suction tube (40). Housing (20) contains a liquid applicator assembly (21) which comprises a body (... | 10/29/1991 |
| 4266317 | Vacuum cleaning apparatus A sanitizing hand-manipulated vacuum cleaning apparatus embodying a floor-engaging suction head including a front squeegee and a rear abrasive pad establishing a suction chamber therebetween which is adapted to be connected to a source of sub-atmospheric ... | 05/12/1981 |
