Class 96/382 - For vacuum cleaner

Subclass of Class 96 - Gas separation: apparatus
Definition: Apparatus having sound damping means for a cleaning device
No. of patents: 33
Last issue date: 05/08/2012

Number	Title	Issue Date
8172932	Connecting tube having dust sensing function for use in vacuum cleaner A connecting tube having a dust sensing function is provided. The connecting tube includes a tube element having a first air flowing passage; a body having a second air flowing passage to communicate with the first air flowing passage; a detecting sensor disposed on...	05/08/2012
7434657	Acoustic foam sound reducer for vacuum power unit A power unit for an in-wall vacuum cleaning system has a first compartment which contains a motor for producing a vacuum at remote wand receptacles and a second compartment for separating and collecting the debris. An improved sound reducer is mounted in the motor c...	10/14/2008
7323022	Vacuuming machine The subject invention pertains to a vacuuming machine with a primary chamber in which vacuum pressure within allows the ingress of debris through a hose. Air and debris entering the primary chamber decelerate upon entry into the chamber which allows debris to settle...	01/29/2008
7247180	Silencer for dust collection system An auxiliary dust collection system can be interposed between a sander or other dust producing tool and a vacuum source, e.g., shop vacuum. A cyclonic separator is connected by a flexible hose to the tool and by another hose to the vacuum source. The cone of the sep...	07/24/2007
7228935	Attachment pin for an exhaust-gas muffler The invention relates to an attachment pin (1) for fixing an exhaust-gas muffler (2) in an apparatus part (4) of a portable handheld work apparatus (5) driven by an internal combustion engine. The exhaust-gas muffler (2) includes e...	06/12/2007
7225504	Noise suppressor for use with vacuum air cleaner A noise suppressor for use with the vacuum air cleaner includes an enclosed casing. On the casing, there are an air intake end and an air outlet end. Between the air intake end and the air outlet end, there is the noise suppressing chamber. At the air intake end and...	06/05/2007
7159273	Muffler assembly for a bagless vacuum cleaner An upright vacuum cleaner having a muffler system is disclosed. The upright vacuum cleaner includes a carpet engaging nozzle base and an upper housing pivotally connected to the nozzle base. The upright vacuum cleaner further includes a dirt cup removably secured to...	01/09/2007
7156903	Sound enclosure for portable oxygen concentrators A portable pressure swing adsorption apparatus and conservation device for medical use, and a sound enclosure for the apparatus having two isolating sections to enclose the apparatus, the enclosure having an inlet in one of the sections for allowing ambient air into...	01/02/2007
7141101	Filter assembly with noise attenuation A filter assembly configured for acoustic dampening for use with compressor assemblies such as oxygen concentrators including a compartmented housing member having an inlet opening, an outlet opening, a filter member, and a plurality of noise attenuating members pos...	11/28/2006
6948211	Vacuum cleaner with noise suppression features A vacuum cleaner includes a cyclonic airflow chamber that facilitates the separation of contaminants from a suction airstream. The airflow chamber includes a chamber inlet and a chamber outlet, with the chamber inlet being fluidically connected with at least one of ...	09/27/2005
6949134	Vacuum cleaner Disclosed is a vacuum cleaner which can remove sludge, bad smells and toxic gases and discharge the filtered air to the upper portion of the vacuum cleaner to prevent the filtered air from being sucked with non-filtered air into the cleaner again. The vacuum cleaner...	09/27/2005
6936085	Vacuum loader A specially arranged vacuum loader and industrial dust collector with a perforated plate tangential cyclone separator is provided to efficiently remove, readily collect, effectively separate and safely dispose of wet, dry and fibrous materials, including liquids and...	08/30/2005
6932188	Silencer for vacuum cleaner A silencer for a vacuum cleaner is provided and includes at least one hermetic expansion chamber mounted in an exhaust channel of the vacuum cleaner and allowing an exhaust airflow from the vacuum cleaner to pass through. The expansion chamber at its two sides has a...	08/23/2005
6569217	Industrial dust collector with multiple filter compartments A specially arranged industrial dust collector with multiple filtering compartments is provided which is efficient, effective, and economical. The special industrial dust collector has a solids-gas separation compartment which is positioned generally alon...	05/27/2003
6094774	Silencer for a suction cleaner A suction cleaner comprising a motor which operates a blower in such a manner that the blower blows a flow of air out into a motor chamber that delimits a volume which extends at least radially around the motor, and then out through outlet openings arrang...	08/01/2000
5991969	Noise absorbing device for vacuum cleaner In a vacuum cleaner a suction motor is installed in a front casing. The front casing has a first main body with a first suction opening connected to the suction motor. An opposite side face of the first main body is opened. A lower chamber communicates wi...	11/30/1999
5765257	Muffler An improved muffler for vacuum cleaners and other product applications is disclosed. The muffler includes a muffler body or enlarged head with a smaller hollow shaft extending from an open end of the muffler body or enlarged head for attachment to an exha...	06/16/1998
5752997	Wet cleaning apparatus A wet cleaning apparatus having an intake connection and at least one air outlet opening is provided. The apparatus has a blower motor and a container for cleaning liquid. The container is disposed in the immediate vicinity of the motor, either above it, ...	05/19/1998
5737797	Central vacuum with acoustical damping A central vacuum unit having an acoustic damping system is provided. The central vacuum unit includes a canister having a sidewall forming a hollow interior and a lid closing an end of the sidewall, a vacuum motor within the canister which emits noise dur...	04/14/1998
5513417	Silencing device for vacuum cleaner A silencing device for a vacuum cleaner includes dampers for absorbing operational vibration of a suction motor. The operational noises of the suction motor are intercepted and suppressed by a middle case, a lower case, a bottom case and a top case. The e...	05/07/1996
5365633	Vacuum cleaner A vacuum cleaner including an electric blower disposed inside a generally cylindrical rigid blower casing positioned inside the vacuum cleaner body. The blower casing has a lining of sound absorbing material and is configured to cause a swirling flow arou...	11/22/1994
5293664	Low noise and less vibration vacuum cleaner A vacuum cleaner with noise and vibration greatly reduced is disclosed. The vacuum cleaner includes a blower assembly which comprises a vibration absorbing assembly for absorbing vibrations occurring due to high speed revolutions of electric blower, a noi...	03/15/1994
4938309	Built-in vacuum cleaning system with improved acoustic damping design An improved design for the central power and suction unit of built-in vacuum cleaning systems, which improved design provides significant acoustic damping to substantially reduce the noise level generated from the central power and suction unit. The desig...	07/03/1990
4874410	Vacuum producing apparatus A vacuum producing apparatus includes a bag separator having a cylindrical housing containing a plurality of filter bags supported by and extending between upper and lower bag heads. A radially disposed inlet conduit projects through the wall of the separ...	10/17/1989
4786299	Vacuum loader with silencer base A unique vacuum loader is provided with a special silencer base to quietly, efficiently, and effectively remove particulate matter, debris and waste from industrial plants and other locations. The silencer base comprises a muffler and sound abatement cont...	11/22/1988
4665581	Vacuum cleaner apparatus A vacuum cleaner apparatus having separate passages for outgoing air from the blower and for cooling air for the blower motor, and having a number of turns in each of said passages, each of said passages having a plurality of variations in cross-sectional...	05/19/1987
4617034	Electric cleaner with minimum noise An electric cleaner incorporates an effective noise suppression arrangement for minimizing the noise generated by the exhaust from the electric air blower. The present invention provides an electric cleaner comprising an air rectifying duct installed on i...	10/14/1986
4592764	Vacuum cleaner A body of a vacuum cleaner comprising three subassemblies, i.e., a front subassembly, a central subassembly, and a rear subassembly. The front subassembly stores the matter drawn through a suction port formed in a suitable position. The central subassembl...	06/03/1986
4533370	Electric cleaner with minimum noise An electric cleaner incorporates an effective noise suppression arrangement for minimizing the noise generated by the exhaust from the electric air blower. The present invention provides an electric cleaner comprising an air rectifying duct installed on i...	08/06/1985
4435877	Noise reducing means for vacuum cleaner A noise muffler for a vacuum cleaner is constructed of flexible open cell foam inserts, one of which extends across an opening through which working air flows between two plenums. At this opening the foam insert is provided with a plurality of relatively ...	03/13/1984
4356591	Vacuum cleaner A vacuum cleaner with a housing having a hood and at least one suction connection and at least one discharge opening, as well as with a dust filter and a suction apparatus provided with a blower and an electric motor, with the suction apparatus being surr...	11/02/1982
4302225	Hand vacuum cleaner A hand vacuum cleaner includes a housing having an inlet and an outlet, and a front and a rear part connectable with each other so as to constitute the housing. The housing has a front face and a rear face spaced from the inlet in the flow direction of in...	11/24/1981
3964888	Vacuum sweeper A vacuum sweeper, particularly for collecting borings, has an upright cylindrical receptacle with a tangential inlet for admission of an air stream which carries borings and/or other solids and an open top which is overlapped by a platelike air filter dis...	06/22/1976

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Class 96/382 - For vacuum cleaner