Did You Know...
...that power steering was invented by independent inventor Francis W. Davis? As chief engineer in the 1920s of the truck division of the Pierce Arrow Motor Car Company, he saw how hard it was to steer heavy vehicles. So that he would be able to keep the profits from his future invention, Davis left his job, rented a small engineering shop in Waltham, Mass., and developed a hydraulic power steering system that led to power steering.
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| Number | Title | Issue Date |
| 8157879 | Vacuum cleaner filter bag with deflection device A vacuum cleaner filter bag with an inlet opening and a deflection device arranged in the area of the inlet opening, which is configured in such a way that an air stream flowing through the inlet opening can be deflected. ... | 04/17/2012 |
| 8092562 | Holding plate for a vacuum cleaner filter bag A holding plate for a vacuum cleaner bag is provided. The holding plate includes a base plate with an opening, a closing element pivotably arranged on the base plate, and a spring element having a bending angle (B) that upon pivoting of the closing element in an ope... | 01/10/2012 |
| 8002862 | Filter bag and method for the production thereof Described is a filter bag for a vacuum cleaner which may include a tubular bag with a closed free end area and an opposed, at least partially closed area as well as with a retaining plate. The bag is made from a bag material having at least one non-woven layer, and ... | 08/23/2011 |
| 7799107 | Self-sealing bag arrangement for a floor cleaning device A filtration bag assembly may include an air permeable bag and a collar affixed thereto. The collar may include an opening that communicates with the interior of said bag and at least one panel that is movable to selectively obscure the opening. The collar includes ... | 09/21/2010 |
| 7341612 | Disposable vacuum bags A disposable open bag for a power tool such as a Shop-Vac cleaner has a mounting plate with an opening for receiving debris from the intake of the power tool. The mounting plate is also provided with a vent opening(s), e.g., to prevent the bag from closing in on the... | 03/11/2008 |
| 7332010 | High pressure filter/separator and locking mechanism Disclosed is a two or three phase separator including a centrifugal separator, a demister (if a three phase separator), and a filter contained within a housing. The filter uses an outside-in flow principle. The filter includes an inner layer or a center core that de... | 02/19/2008 |
| 7325272 | Vacuum bag guide with telescopic nozzle A vacuum bag mounting assembly for housing a vacuum bag within a vacuum cleaner, where the vacuum cleaner includes a vacuum intake nozzle having an outlet end portion through which sucked in dirt is delivered to the vacuum bag housing assembly, including a vacuum ba... | 02/05/2008 |
| 7261756 | Safety filter element A filter element for filtering fluids and gasses flowing through a filter housing is provided. The filter element includes a permeable filter media for filtration of contaminants and a rigid frame for supporting and retaining the filter media. To ensure that gasses ... | 08/28/2007 |
| 7255722 | Gas filter A filtration portion 11 constituting a filter element 3 is composed of a first filtration material 9 wound around the outer periphery of an inner tube 8 and a second filtration material 10 wound tightly around the outer peripheral ... | 08/14/2007 |
| 7254865 | Vacuum bag guide with telescopic nozzle A vacuum bag mounting assembly for housing a vacuum bag within a vacuum cleaner, where the vacuum cleaner comprises a vacuum intake nozzle having an outlet end portion through which sucked in dirt is delivered to the vacuum bag mounting assembly, including a vacuum ... | 08/14/2007 |
| 7216572 | Sawdust collector for table saws A table saw having a horizontal worktable, an open bottom base below the worktable enclosing a rotating blade that cuts wood objects on the worktable surface, and a stand for supporting the base from the floor. The table saw further including a sawdust collector for... | 05/15/2007 |
| 7171719 | Disposal apparatus A receptacle apparatus 10 which includes a receptacle 14 into which refuse is placed very shortly after it is placed within the apparatus 10, thereby reducing the likelihood that it will be undesirably communicated into the surrounding environme... | 02/06/2007 |
| 7152385 | In situ molded thermal barriers Methods, systems, and devices for installing barriers in openings of gaps in or between structures such as walls, ceilings, and floors are described herein. At least one barrier molding bag is positioned in the hole or gap, and a flowable firestop material that is p... | 12/26/2006 |
| 7134166 | Upright vacuum cleaner with cyclonic airflow A vacuum cleaner includes a first housing defining a cyclonic airflow chamber and a second housing defining a main suction opening that is in communication with an inlet of the cyclonic chamber. A suction source has a suction airstream inlet in communication with an... | 11/14/2006 |
| 7090169 | Retaining clamp for alignment of risers when packing a parachute A retaining clamp for alignment of risers when packing a parachute is disclosed. The retaining clamp comprises a base with three prongs defining bores for receiving and engaging large rings of three-ring release assemblies (three-ring release assemblies are used for... | 08/15/2006 |
| 7076832 | Vacuum cleaner with pivotal fixture for dust bag reinforcing plate in a dust bag compartment A vacuum cleaner includes a dust collection compartment inside of which a dust bag with a reinforcing plate, which has a clip connected to the underside thereof, can be placed. The clip tapers toward the bottom in the shape of a funnel or trapezoid and is suited for... | 07/18/2006 |
| 7043880 | In situ molded thermal barriers The invention provides methods, systems, and devices for installing thermal barriers in openings or gaps in or between structures such as walls, ceilings, and floors. At least one thermal barrier molding bag is positioned in the hole or gap, and a flowable firestop ... | 05/16/2006 |
| 7040528 | Dispenser/closure for flexible product containers A dispenser adapter assembly for bags includes a bag having a line of weakness defining an opening, and a dispenser adapter mounted to the bag. The dispenser adapter is formed of a first main base portion having an opening and a second slider retention base portion ... | 05/09/2006 |
| 7018547 | Filtration covering apparatus A filtration covering apparatus for use covering diatomaceous earth filter grids for swimming pools. The filtration covering apparatus has a replaceable cover having two closed sides, a bottom opening, and a top opening. The replaceable cover is curved shaped to acc... | 03/28/2006 |
| 6886215 | Vacuum cleaner fill tube with valve An apparatus for use with a vacuum cleaner filter bag comprises a vacuum cleaner fill tube. The fill tube is configured for the bag to be mounted on the fill tube. The fill tube has an outlet through which a working flow of vacuum cleaner air can exit the fill tube ... | 05/03/2005 |
| 6802879 | Vacuum collection bag and method of operation The present invention is an improved vacuum collection bag for vacuum cleaners and other appliances. By employing an impermeable bag and an air-permeable particle separator together with a tight seal against a vacuum system dirt tube in place of a conventional paper... | 10/12/2004 |
| 6786947 | Washable cloth vacuum cleaner filter bag having a resealable opening for emptying vacuumed debris A washable cloth vacuum cleaner filter bag for use on wet/dry vacuum cleaners and in central vacuum cleaner systems includes a first opening for receiving vacuumed debris, means for attaching the first opening to the inlet of the vacuum cleaner or system, and a seco... | 09/07/2004 |
| 6749654 | Dust filtration frame and disposal cover A dust collection system includes a housing defining an inlet and an outlet. A fan is situated within the housing to move air from the inlet to the outlet, and a filter is removably attached to the housing to collect dust entering the housing. To prevent dust from e... | 06/15/2004 |
| 6746501 | Vacuum bag collar with rotatable closure A collar for a vacuum cleaner bag having a user operated closure, the collar being formed from a blank of relatively rigid material and folded to define first and second full outer panels and a partial inner panel, the partial inner panel being adhesively secured to... | 06/08/2004 |
| 6733555 | Vacuum bag collar A user closable collar for a vacuum cleaner bag, the collar body being formed from a single blank of relatively rigid material which is folded to define three generally overlapping and planar panels, a middle panel having fixed raceway element which is adhesively se... | 05/11/2004 |
| 6626969 | Mounting collar for a vacuum cleaner filter bag An apparatus for mounting a vacuum cleaner filter bag on a vacuum cleaner fill tube includes a filter bag panel. The panel is configured to be grasped by a hand to mount the bag on the fill tube. The panel has an inner edge defining an opening for receivi... | 09/30/2003 |
| 6461394 | Dust bag for use in a vacuum cleaner A dust bag for vacuum cleaners including a bag shaped member of an air permeable material, adjacent to an inlet opening attachable by an adhering layer to a plate shaped member to facilitate mounting of the dust bag in an intended vacuum cleaner. The adhe... | 10/08/2002 |
| 6379408 | Mounting and closure structure for a bag, such as a vacuum cleaner bag A sealable debris bag includes a bag body having an opening, and a plate member attached to the bag body proximate the opening. First and second portions of the plate member are pivotable along a fold-line so that the first portion is engageable with the ... | 04/30/2002 |
| 6224645 | Dust separator A dust separator for a vacuum cleaner, in which the bag is sealingly connected to a rigid member that screens-off an air-flow passageway through the vacuum cleaner and has an opening with which the bag connects. The screening member is separate from the b... | 05/01/2001 |
| 6178592 | Ballast frames for maintaining flexible mesh screen vents unclogged A lightweight ballast frame with a metal rim spanned by one or more metal mullions is loosely anchored at several points to a flexible screen mesh covering a vent formed in an enclosure defining a collection chamber and providing an escape portal for the ... | 01/30/2001 |
| 6136056 | Connection member for a filter bag for vacuum cleaning equipment A connection member for a filter bag for vacuum cleaning equipment. The member has a base with two superposed base layers of stiff material which together define a first passage opening. A slide element, located between the two layers of the base, has a s... | 10/24/2000 |
| 6086649 | Holder for a vacuum cleaner dust bag A holder (10) for a vacuum cleaner dust bag which is removably arranged in the vacuum cleaner and includes a sleeve (14) on which an open end (13) of the bag (11) is received. Two or more clamping blocks (17) at least partly surround the sleeve and can be... | 07/11/2000 |
| 6071322 | Dust container for vacuum cleaners A dust container for vacuum cleaners includes a bag and a front plate. The bag is made of a material that, essentially, is permeable only to air. The front plate encloses a suction opening in the bag. The front plate is of a shape that is independent of t... | 06/06/2000 |
| 6007594 | Multiple use disposable vacuum cleaner bag A disposable reusable vacuum cleaner bag for a vacuum cleaner of the home appliance type is disclosed. The vacuum bag has an inlet for receiving materials from the vacuum cleaner, an apparatus for attaching the bag to the vacuum cleaner, and a resealable ... | 12/28/1999 |
| 5820643 | Dust filter bag for a vacuum cleaner A dust filter bag (1) for a vacuum cleaner (3), with a retaining plate (H). The bag is constructed of a solid paper material, such as cardboard for example, to which a dust bag (12) is joined, for example adhesively, with a closure flap (13) turned toward... | 10/13/1998 |
| 5772712 | Manually closable vacuum cleaner bag collar and method of making A manually closable collar for a vacuum cleaner bag is adapted to be secured to an air bag. The collar is formed from a single blank of relatively rigid material folded to define three overlying and generally planar panels. Each of the panels defines an a... | 06/30/1998 |
| 5771529 | Connection device between a vacuum cleaner and a suction pipe A connection device between a suction pipe and a vacuum cleaning unit, the unit having a closing flap (5) displaceable between an open position and a closed position at the suction inlet of the unit by using a control member (11) as well as a component fo... | 06/30/1998 |
| 5766283 | Dust filter bag for a vacuum cleaner The invention pertains to a filter bag (8) for a vacuum cleaner (1), with a retainer plate (16) made of a cardboard-paper material that can be attached to a dust bag (37), for example by gluing, and that has a sealable opening (19) for a suction tube (vac... | 06/16/1998 |
| 5725620 | Manually closable vacuum cleaner bag A manually closable collar for a vacuum cleaner bag is adapted to be secured to an air bag. The collar is formed from a single blank of relatively rigid material folded to define three overlying and generally planar panels. Each of the panels defines an a... | 03/10/1998 |
| 5725619 | Device for closing and ejecting the bag of a vacuum cleaner An obturation device for the disposable bag (1) of a vacuum cleaner, the bag (1) having a rigid area (1a) in the vicinity of a closable filling inlet, in order to fix the bag (1) to a frame part (13) of the vacuum cleaner, as well as a flap (5) for closin... | 03/10/1998 |
