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US5735918A Expired / Lapsed US ⏱️ 0.0 years remaining

Combination air freshener and air filter

Assignee: Individual
•
Filing: 1996-11-19
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Granted: 1998-04-07
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Expires: 2016-11-19
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Abstract

Abstract An automatically operating air filter and air freshener device which can be mounted on a wall or is self supporting, and in which the motor fan unit is located in front of the filters and part of the air flow is directed to pass through a scent element, while the remainder of the air flow passes through an exit opening in the rear of the device spaced from the wall.

Inventors

  • 👤 George Barradas

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-29 13:03
CPC Classifications
A; A61; A61L; A61L9/00; A61L9/015; A61L9/04; A61L9/12; A61L9/122

Claims Analysis

Total Claims: 18
Claim 1
Independent Claim 160 words
A combination portable self-contained automatic air freshener and air filter device for placement in a room comprising: a housing having a motor and rotating fan blades connected to said motor, at least one filter element in said housing and located downstream of said fan blades element, a first air exit in said housing located downstream of said fan blades and filter element, a first part of said room air being conducted through said filter element to produce filtered air, said filtered air being discharged out of said first exit in said housing to the room, an apertured receptacle in said housing, a fragrance element in said receptacle, a conduit for conducting another part of said room air in said housing through said conduit and said fragrance element and receptacle, a second air exit in said housing, said another part of said room air being discharged out of said second exit in said housing whereby aroma is generated in the room.
Claim 2
Dependent Claim 160 words
A combination portable self-contained automatic air freshener and air filter device for placement in a room comprising: a housing having a motor and rotating fan blades connected to said motor, at least one filter element in said housing and located downstream of said fan blades element, a first air exit in said housing located downstream of said fan blades and filter element, a first part of said room air being conducted through said filter element to produce filtered air, said filtered air being discharged out of said first exit in said housing to the room, an apertured receptacle in said housing, a fragrance element in said receptacle, a conduit for conducting another part of said room air in said housing through said conduit and said fragrance element and receptacle, a second air exit in said housing, said another part of said room air being discharged out of said second exit in said housing whereby aroma is generated in the room.
Claim 3
Dependent Claim 47 words
The device as claimed in claim 1 further comprising a heater juxtaposed to said fragrance element, and a motion sensor for operating said motor and fan blades, and activating the heater thereby emitting an aroma from said fragrance element into said room through said second air exit.
Claim 4
Dependent Claim 19 words
The device as claimed in claim 1 wherein one of said filter elements is constituted of a foam material.
Claim 5
Dependent Claim 17 words
The device as claimed in claim 1 wherein one of said filter elements is a charcoal filter.
Claim 6
Dependent Claim 18 words
The device as claimed in claim 1 wherein a power source is provided comprising at least one battery.
Claim 7
Dependent Claim 16 words
The device as claimed in claim 1 wherein a power source is provided comprising alternating current.
Claim 8
Dependent Claim 54 words
The device as claimed in claim 1 further comprising at least one hook projecting from the rear of said housing, and a wall hanger having end posts provided with means for attaching said posts to said housing, and said hook latching on said wall hanger for supporting said device but spaced from said wall.
Claim 9
Dependent Claim 46 words
The combination air cleaner and filter device as claimed in claim 7 wherein said housing is rectangular and provided with two posts located at the bottom two corners of said housing and wherein said hook is located at the top of the back of the housing.
Claim 10
Dependent Claim 21 words
The device as claimed in claim 7 wherein said means for attaching said posts to the wall is an adhesive material.
Claim 11
Dependent Claim 197 words
A combination portable self-contained automatic air freshener and air filter device for placement in a room comprising: a housing having a motor and rotating fan blades connected to said motor for drawing in atmospheric room air into said housing, at least two filter elements positioned downstream of said fan blades, a first air exit in the rear of said housing located downstream of said fan blades and filter elements, a first part of said room air being conducted through said filter elements producing filtered air, an apertured receptacle in said housing, a fragrance element in said receptacle, a second air exit, a conduit for conducting part of said filtered air through said fragrance element and out said second exit whereby aroma is generated in the room, means for conducting the remainder of said filtered air through said first exit in said housing to the room, and a plurality of spaced posts projecting from the rear of the housing whereby when said device is placed against a wall in said room a space is created between said wall and said first air exit to permit the filtered air in said device to be expelled from said housing unimpeded.
Claim 12
Dependent Claim 197 words
A combination portable self-contained automatic air freshener and air filter device for placement in a room comprising: a housing having a motor and rotating fan blades connected to said motor for drawing in atmospheric room air into said housing, at least two filter elements positioned downstream of said fan blades, a first air exit in the rear of said housing located downstream of said fan blades and filter elements, a first part of said room air being conducted through said filter elements producing filtered air, an apertured receptacle in said housing, a fragrance element in said receptacle, a second air exit, a conduit for conducting part of said filtered air through said fragrance element and out said second exit whereby aroma is generated in the room, means for conducting the remainder of said filtered air through said first exit in said housing to the room, and a plurality of spaced posts projecting from the rear of the housing whereby when said device is placed against a wall in said room a space is created between said wall and said first air exit to permit the filtered air in said device to be expelled from said housing unimpeded.
Claim 13
Dependent Claim 18 words
The device as claimed in claim 10 wherein one of said filter elements is constituted of foam material.
Claim 14
Dependent Claim 30 words
The device as claimed in claim 10 further providing a motion sensor for operating the device as soon as a person enters the room in which said device is located.
Claim 15
Dependent Claim 36 words
The device as claimed in claim 10 further providing a light sensor and a light bulb wherein skid light sensor activates said light bulb upon a person entering the room in which said device is located.
Claim 16
Dependent Claim 155 words
A combination portable self-contained automatic air freshener and air filter device for placement in a room comprising: a housing having a motor and rotating fan blades connected to said motor for drawing in atmospheric room air flow into said housing, two filter elements located behind and spaced from said fan blades, one of said filter elements being accordion shaped, at least one conduit in said housing, a first air exit located downstream of said fan blades and said filter elements whereby the filtered air flow is conducted through said first exit in the housing to the room, a receptacle in said housing, openings in both the bottom and top of said receptacle, a fragrance element in said receptacle, a second air exit whereby the remainder of the room air flow is conducted through said conduit, and through said fragrance element in said receptacle and out said second exit whereby aroma is generated in the room.
Claim 17
Dependent Claim 155 words
A combination portable self-contained automatic air freshener and air filter device for placement in a room comprising: a housing having a motor and rotating fan blades connected to said motor for drawing in atmospheric room air flow into said housing, two filter elements located behind and spaced from said fan blades, one of said filter elements being accordion shaped, at least one conduit in said housing, a first air exit located downstream of said fan blades and said filter elements whereby the filtered air flow is conducted through said first exit in the housing to the room, a receptacle in said housing, openings in both the bottom and top of said receptacle, a fragrance element in said receptacle, a second air exit whereby the remainder of the room air flow is conducted through said conduit, and through said fragrance element in said receptacle and out said second exit whereby aroma is generated in the room.
Claim 18
Dependent Claim 18 words
The device as claimed in claim 14 wherein said one of the filtering elements is a charcoal filter.

References Cited (Backward Citations)

US2992701A Cited
US3744216A Cited
US3807148A Cited
US4064203A Cited
US4252547A Cited
US4816973A Cited
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JPS60197218A Cited
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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 2001-04-06 2001-10-06 2002-04-07 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2005-04-06 2005-10-06 2006-04-07 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2009-04-06 2009-10-06 2010-04-07 $7700.00 Window Closed / Lapsed

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