Class 55/368 - Spaced interior inflow path or with means modifying gas flow in bag

Subclass of Class 55 - Gas separation
Definition: Apparatus having gas flow conducting means defining a confined
No. of patents: 31
Last issue date: 05/01/2007

Number	Title	Issue Date
RE39595	Vacuum cleaner tank assembly A vacuum cleaner filter bag retainer includes slots on each side which receive a cardboard plate attached to a filter bag. The plate is slid into the slots of the filter bag retainer such that openings in the plate and bag match with an opening in the filter bag ret...	05/01/2007
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
7131165	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...	11/07/2006
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
7032368	Attachment for connecting a duct to a grass bagger of a mower An attachment for releasably coupling a conduit or duct on a mower to the grass bagger inlet of a grass bagger. The duct has a front end connected to a cutting deck carried on the mower and a rear end connected to the grass bagger inlet. The duct is flexible and inc...	04/25/2006
6908550	Filter bag A filter bag for a pool cleaning device includes a bag structure, formed of nylon mesh material, and a discharge opening, formed by a zipper. The zipper allows for temporary access to the interior chamber of the bag by opening the zipper. ...	06/21/2005
6406507	Apparatus and methods for supporting and shielding flexible outer bags of vacuum cleaners Apparatus and methods of supporting and shielding flexible outer bags of vacuum cleaners are disclosed. In one embodiment, a support structure includes a backing plate adapted to be disposed within the flexible outer bag, and at least one support member a...	06/18/2002
6348078	Vacuum cleaner output duct extension An output duct extension for attachment to an upright vacuum cleaner output sleeve or collar. The output duct extension is constructed to be insertable into the paper fill tube of a disposable paper filler bag. The output duct extension is of a longitudin...	02/19/2002
6342084	Vacuum cleaner A vacuum cleaner apparatus (10) is provided which includes a vacuum motor (16), an air pervious membrane (26) and an air pervious material collection bag (22). The vacuum motor (16) is arranged to draw air downwardly in turn through the bag (22), the memb...	01/29/2002
6179889	Vacuum cleaner tank assembly A vacuum cleaner filter bag retainer includes slots on each side which receive a cardboard plate attached to a filter bag. The plate is slid into the slots of the filter bag retainer such that openings in the plate and bag match with an opening in the fil...	01/30/2001
6146434	Cyclonic dirt cup assembly A cyclonic dirt cup assembly for a vacuum cleaner has a generally conical truncated cone positioned within a dirt cup of the vacuum cleaner. The dirt cup has a wall formed with an air inlet opening for receiving a stream of dirt-laden air within the dirt ...	11/14/2000
5961676	Hard bag door with air directing arrangement A hard bag cleaner door is disclosed having air directing rib vanes integral with its inner surface. These vanes take the form of, alternately, angled J-shaped ribs and short straight interleaved ribs. All the ribs are stepped so that the flow passage for...	10/05/1999
5910247	Two element filter bag My invention comprises a two element filter bag which includes a cylindrical outer element, a generally tubular inner element, a joining means, a securing means, and a diverting means. Cylindrical outer element is hollow, constructed of suitable filter me...	06/08/1999
5863309	Hard bag door with air directing arrangement A hard bag cleaner door is disclosed having air directing rib vanes integral with its inner surface. These vanes take the form of, alternately, angled J-shaped ribs and short straight interleaved ribs. All the ribs are stepped so that the flow passage for...	01/26/1999
5755962	Filter bag and process of manufacture A prefilter bag for insertion into a standard filtration bag apparatus, having a filtration assembly comprising a seamless filter membrane having uniform pore openings preselected within the range of between about 2 and about 50 microns (μ) and a linearl...	05/26/1998
5658362	Vacuum cleaner and filter bag with air management Vacuum cleaner canisters and vacuum cleaner filter bags are provided with weir members disposed in the path of particle laden air flowing through the vacuum cleaner. The particle laden air flows across the top and/or side edges of the weir members creatin...	08/19/1997
5603741	Vacuum cleaner and filter bag with air management Vacuum cleaner canisters and vacuum cleaner filter bags are provided with weir members disposed in the path of particle laden air flowing through the vacuum cleaner. The particle laden air flows across the top and/or side edges of the weir members creatin...	02/18/1997
5216779	Upright soft bag type vacuum cleaner An upright vacuum cleaner having a filter bag housing assembly comprised of a fabric or otherwise flexible and air permeable bag housing resiliently supported at its bottom end relative to the operator handle such that the bag housing is always in tension...	06/08/1993
4824450	Air filter apparatus A filter device, usable as a self-contained or freestanding unit or in association with an associated air treatment installation such as a furnace or air conditioner. A preferred embodiment has a housing in which is supported a parallel-arranged plurality...	04/25/1989
4675032	Vacuum cleaner bag with oscillating tube A bag is shown for use with an upright vacuum cleaner of the type having a motor fan contained in a main housing for producing an air flow out an air duct of the housing. The bag includes a flexible body having side walls formed of an air pervious materia...	06/23/1987
4618420	Filter bag for pool cleaners An improved filter bag is provided for swimming pool cleaners and the like particularly of the type designed for travel along submerged pool surfaces to dislodge and collect debris. The filter bag is formed from an elongated stretch of porous fabric, such...	10/21/1986
4514200	Filter bag for floor care appliance A floor care appliance having a filter bag with an inlet chamber accessed by an inlet aperture, and a quiescent storage chamber connected to the inlet chamber by an opening adjacent the top thereof. The filter bag is formed of filter sheet material as an ...	04/30/1985
4469498	Dirt interceptor filter bag mount for vacuum cleaner A connector for connecting a filter bag to the suction inlet of a vacuum cleaner. The filter bag connector includes a dirt interceptor extending across the air flow path from the suction inlet to intercept high speed dirt particles at the center and upper...	09/04/1984
4401446	Method and apparatus for increasing the efficiency of internal collection filter bags One or more hollow tubular air channeling members are positioned in the interior of an internal collection type filter bag to separate the incoming dirty air into a plurality of portions essentially confined from each other and to direct these separated a...	08/30/1983
4356011	Pocket filter assembly A pocket filter cartridge for removing solid particulates from a dirty gas stream including a plurality of sheath-like filter bags suspended from a common header assembly in side-by-side relation. Each of the filter bags includes a plurality of alternatin...	10/26/1982
4261713	Apparatus for the separation and recovery of a solid product transported by a gas Apparatus for the separation and recovery of a solid product transported by a gas, wherein said apparatus comprises at least one filter cartridge made from a rigid porous material mounted in a sealed enclosure and defining in the latter a first filter cha...	04/14/1981
4119414	Filter bag construction for a vacuum cleaner and method of operation A filter bag construction for filtering dirt, dust and other materials from the exhaust air flow of an upright vacuum cleaner, wherein an elongated, non-disposable outer fabric bag having a longitudinally extending delivery tube therein provides one stage...	10/10/1978
4046526	Bag collector for dirt with selective half-bag cleaning A plurality of elongated tubular porous bags are arranged in a straight line side by side in a housing through which a dirty stream of gas is passed impinging on the outer surfaces of the bags and thus collecting dirt particles there. In the middle of eac...	09/06/1977
3973936	Horseshoe-shaped vacuum cleaner filter bag A vacuum cleaner filter bag is made of a porous sheet of material which permits penetration and flow therethrough of air. The bag is generally horseshoe-shaped and has a comparably shaped internal cavity. The bag has two tubular leg portions and a tubular...	08/10/1976
3932910	Toner cleaning apparatus in electrophotographic copying machine An improved cleaning apparatus for an electrophotographic copying device which comprises (a) a cleaning brush, (b) a casing for said brush having a front end portion which forms a first opening and a rear end portion which forms a second opening adapted t...	01/20/1976

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Class 55/368 - Spaced interior inflow path or with means modifying gas flow in bag